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  1. This article is a portion of a dissertation by Kenneth Hullet. The source writing is over 250 pages in length. We share this in hopes that it will further the learning of level designers. The Table of Contents is listed directly below, within a spoiler. The parts marked in Orange are included here. Follow the link at the end of this article to read the full writing, as it contains much value. TABLE OF CONTENTS - In Spoiler ABSTRACT Level designers create gameplay through geometry, AI scripting, and item placement. There is little formal understanding of this process, but rather a large body of design lore and rules of thumb. As a result, there is no accepted common language for describing the building blocks of level design and the gameplay they create. This dissertation presents a set of level design patterns for first-person shooter (FPS) games, providing cause-effect relationships between level design patterns and gameplay. These relationships are explored through analysis of data gathered in an extensive user study. This work is the first scientific study of level design, laying the foundation for further work in this area. Data driven approaches to understand gameplay have been attempted in the past, but this work takes it to a new level by showing specific cause-effect relationships between the design of the level and player behavior. The result of this dissertation is a resource for designers to help them understand how they are creating gameplay through their art. The pattern collection allows them to explore design space more fully and create richer and more varied experiences. INTRODUCTION Level designers create gameplay through geometry, AI scripting, and item placement. There is little formal understanding of this process, but rather a large body of design lore and rules of thumb. As a result, there is no accepted common language for describing the building blocks of level design and the gameplay they create. This research creates a science of level design based on design patterns for first-person shooter (FPS) levels and data analysis to show cause-effect relationships between level design patterns and gameplay. Level design is often viewed as an artistic endeavor, so the applicability of purely scientific approach may be considered controversial. This research argues that level designers employ design patterns while creating FPS levels, whether advertently or inadvertently. Furthermore, analysis of gameplay data can show distinct patterns of behavior in different situations. If we control for all factors besides the design of the level, we can claim that significant observed differences are due to the level design. To show these cause-effect relationships, we conducted a user study and performed analyses of the collected data. The user study explores what effects the patterns, and variations within the patterns, have on players’ in-game behavior. Based on deviations from the expected results, we are able to adjust the theory, improving our understanding of the relationships, and increasing the usefulness of the taxonomy as a tool for level designers. For each pattern explored in depth, we created multiple instances of the pattern, each with a different set of affordances – for example, with a sniper location, some instances were high, some low, some with good cover, some without, etc. Based on our surveys of existing FPS level design, we expect a lower sniper location to have less of an effect on the level’s pacing; we should observe less of an effect than we would when subjects encounter a higher sniper location. These instances are placed in the user test levels played by the subjects. From the data collected during the user study we can determine how gameplay is affected by the pattern, and if this is different from what we expect. This research is necessarily reductionist in its approach. In practice, design patterns are rarely distinct, instead overlapping with other patterns or elements to create varied effects. Nonetheless we will argue that design patterns provide a useful analytic framework for thinking about level design in a scientific way. The lowest possible segmentation of level design elements, the actual placement of individual walls, floors, items, and entities, is far too granular to elicit any understanding of designer intent or to observe an effect on player behavior. The highest level, a complete level, is far too coarse, as FPS levels generally contain multiple subareas with different gameplay objectives. Design patterns are a small enough unit that a clear distinct purpose can be elicited, but not so small as to be overwhelmed with details of pixel by pixel placement of objects and geometry. THE FIRST-PERSON SHOOTER GENRE FPS games are combat-oriented games where the player engages other characters with a variety of projectile and melee weapons. The player navigates a 3D world while looking through the eyes of the main character (i.e., a first-person point of view), though some games where the camera follows the player character (third person shooter or TPS) have similar gameplay and are generally considered to be in the same genre. FPS games are one of the most popular genres of commercial digital games, with many published titles on multiple platforms. Seven of the top-ten all-time best-selling games for the Xbox 360 are FPS games. Due to the processing power needed to render realistic-looking 3D environments, FPS games are often credited as a driving force behind technological advancement in personal computers and gaming consoles. Beyond entertainment, FPS games have been used for a variety of training and other serious game applications. One of the most notable is America’s Army, a training and recruitment game released by the US Army. Its intent is to provide a realistic simulation to familiarize recruits with modern Army combat procedures. The platform has been used as the basis for more advanced Army training programs. As a popular and broadly relevant genre, any research that improves our understanding of FPS games is likely to have significant impact. There is also a large body of in-depth analysis which can be drawn upon, including books and articles on FPS design in general and level design specifically. While the results of this study are specific to FPS games, the techniques we propose are generalizable to other game genres. FPS games are also a desirable genre for this study as the level design is a major component of the game and has a significant impact on the player's experience. Levels in commercial games are designed largely by hand and play tested extensively by designers to create specific gameplay effects. It would be difficult to conduct research of this nature on a genre of games where the level design was not as impactful. Furthermore, while the player's experience is by the level design, the mechanics of the game allow for enough variation in individual choice that these impacts are apparent. For this research, we have chosen to focus on single-player levels, though multiplayer is increasingly becoming the dominant gameplay mode. In multiplayer, players are generally playing against other players, rather than environmental challenges created by the designer. For this reason, it would be more difficult to conduct an experiment like the one described here for multiplayer levels. However, it is likely that level design does have an impact on gameplay in multiplayer FPS. Early exploration of patterns specific to multiplayer level design is described in Appendix A. LEVEL DESIGN The precise definition of a level varies by game and genre, but it is generally thought of as a subdivision of a game. Specifically, it is a space where gameplay occurs. While the mechanics of the game define the choices available to the player, the design of a level defines what the player experiences at any given point. It is through level design that level designers craft gameplay experiences for players. Levels for FPS games are generally designed for single- or multi-player play, but not both. Single player levels tend to be a linear sequence of challenges the player must overcome to reach the final goal, whereas multi-player levels are designed to create areas for player-vs.-player combat to occur. While level geometry is the most noticeable aspect of the level designer’s work, other considerations are important in the creation of gameplay. Level designers place objects in the world, including weapons, ammunition, and power-ups. They must be sure to provide enough so the player can complete the level, but not so much as to remove all challenge. They also place Non-Player Characters (NPCs), both friendly and enemy, and use AI scripting to control their behavior. When designing an FPS level, there are many factors the designer must consider, including challenge, pacing, and ease of navigation. Though many FPS games have been made, and numerous books have been written on the subject, there is little formal understanding of their level design. The existing literature conveys design lore and industry practice without exploring how levels create gameplay. Experienced level designers draw from their extensive knowledge of existing games when they create a level. They have an intuitive feel for what features they should include in a level to create different types of gameplay. They may imitate and adapt elements they’ve observed in other levels. Presently, there is no structured way for experienced designers to pass on this knowledge to less experienced designers. A more formal framework would improve designers’ abilities to communicate design ideas as well as provide a reference for possible features to incorporate into levels. For example, one of the design patterns identified is a sniper location. This is an elevated position from which a character can engage other characters in relative safety. There are numerous variations on sniper locations, including their height, amount of cover available, and whether it is intended for use by either the player or an enemy NPC. The effect of an enemy NPC-occupied sniper location is to slow the pace of the level – the player must move slowly and be more cautious to avoid taking fire. While we can predict this behavior based on our understanding of FPS gameplay, it is unknown if the effect is consistent in all cases, or how it is affected by variation within the pattern. Would the effect be less if the sniper location was lower, as it would be easier for the player to engage the enemy NPC? User tests where a number of subjects play levels with different instances of sniper locations will provide empirical evidence of these relationships. The taxonomy of design patterns is a useful tool for improving designers’ abilities to communicate design ideas and as a reference for possible features to incorporate into levels. However, the process by which it was created is necessarily subjective. Designers’ intentions in using certain features may vary, and how players react to the patterns may vary. DESIGN PATTERNS As described above, our user studies are focused on single player levels. While we have explored design patterns in both multi- and single player levels, level design necessarily has a greater impact on single player gameplay, as the players' only interaction is with the environment, rather than with other players. As such, this research is primarily focused on the design patterns developed from analysis of single player levels. The patterns are described in terms of their intended use, effect on gameplay, and variations within the pattern. Examples from popular commercial games are given. The use of design patterns to describe levels is inspired by design patterns used in both software engineering and architecture (the latter of which also inspired the former). A set of design patterns form a language for describing design practices in the domain. Duffy et al. characterize patterns in software engineering by the following: “Noticing and naming the common problems in a field of interest, Describing the key characteristics of effective solutions for meeting some stated goal, Helping the designer move from problem to problem in a logical way, and Allowing for many different paths through the design process.” This research adapts these characteristics to the domain of level design in FPS games. For level designers the problem is creating an entertaining and engaging experience for the player, and the solution is in how they design the level. We adapt the above to define characteristics of a pattern language for the domain of level design, described in detail below: Noticing and naming common structures that produce specific types of gameplay The taxonomy presented in this dissertation was created by identifying design patterns in levels and the gameplay they produce. Examining existing levels and inferring the intended gameplay is the most common means of identifying design patterns, but other methods were employed, including interviewing designers about how they design to elicit certain types of gameplay and reading books and articles that describe common practices. Describing the key characteristics of these structures and how they affect gameplay In identifying the patterns, we noticed that significant variations exist within any given pattern, and those variations have an impact on the gameplay produced. As examples of patterns are identified, variations and their effects are noted, resulting in a more complete detailed view of the pattern and its parameters. Helping the designer address level design concerns in a logical way Armed with knowledge of level design patterns, the designer can tailor a level to the desired gameplay. For example, if a designer wants to change the pace of a level, they can add or alter instances of patterns that are known to affect pacing. If, during gameplay tuning, they discover a problem in a level, they can use the taxonomy to modify existing patterns to address the issues. Allowing for different approaches to create the desired gameplay The taxonomy identifies different design patterns that will affect gameplay in similar ways. If the designer wants to create a certain type of gameplay, they can identify multiple elements in the taxonomy that would be suitable, and pick one that is appropriate for that instance. They are not limited to repeatedly using the same patterns in the same ways; they can use different patterns, or variations with patterns. RESEARCH QUESTIONS The goal of this research is to use data analysis to develop the science of level design through a deeper understanding of FPS level design and how it creates gameplay. The research questions can be broken down into questions about design patterns, player behavior, and the applicability of the work. RQ1: Are level design patterns useful for developing levels, communicating ideas, and teaching about level design? We have already identified level design patterns to create a language for describing levels. The application of design patterns to FPS levels and the patterns themselves are described in Chapter 3. These descriptions provide insight into the designer’s intent and the gameplay that will result. It should be possible to take an existing level and describe it extensively in terms of design patterns. We give an example with a level from Bioshock, a popular commercial FPS. Such description often reveals sections of a level that are not describable with the existing taxonomy, leading to the elicitation of a previously undescribed pattern. Through study of FPS levels we can improve and expand the pattern collection. Besides expanding the pattern collection, it is important to validate the effects of the patterns. The results of this study have helped close the loop and improve the descriptions of the patterns and their gameplay effects. The end result of the study is a set of patterns that has been shown to create specific behavior in the player. RQ2: Can we use data analysis to understand player behavior in FPS levels? To test the cause-effect relationship of the patterns and their variants on gameplay, it is necessary to understand player behavior. What exactly does it mean, for example, when the tension of a level is increased? How is this reflected by the player’s in-game actions? Can this be observed and reported? While previous user studies provide some guidance, it was necessary to develop methods for identifying and classifying player behavior. How this was done in this research is described in Chapter 5. Subjects’ in-game behavior was studied in the video recordings of their level play-throughs and the logged gameplay data. This was correlated with the pattern variants that the subjects encounter to see what the effects are. RQ3: Do the identified design patterns and their variants create the intended gameplay effects? Patterns are used in levels to affect gameplay – for example, when a player encounters a choke point where they have an advantage over enemy NPCs, the expectation is for increased pace and reduced challenge. This should be reflected in the player’s behavior by traits such as engaging enemy NPCs more aggressively, using weapons more frequently, making less use of cover, and moving more quickly. In validating these relationships, we are developing the science of level design. Chapter 5 describes the user study we ran to explore these cause-effect relationships and Chapter 6 explains the results of the analysis. If the expected behavior occurs when a player encounters a design pattern variant in a level, then the theory is validated. In the example above, when the player encounters the choke point, their behavior should be close to our expectations. If for some variation of the choke point, they instead begin moving more slowly and playing cautiously, then there is something about that instance that is creating different gameplay. We can identify what affordances of the pattern vary from other instances and adapt the pattern description to match the observed results. To fully explain the impact of this research, this document is broken into multiple chapters. Chapter 2 covers related work in the existing literature on level design and data analysis in games. Chapter 3 presents the taxonomy of design patterns that we have developed for this research. Chapter 4 explains the major sources of data in games and their impact on game development. Chapter 5 describes the user tests performed, and Chapter 6 details the results. Chapter 7 summarizes the findings and the contributions of the research. RELATED WORK There are three broad streams of work related to this research. First, previous work on applying design patterns to games in general and level design specifically. Second, previous work on exploring, understanding, and communicating about level design in general, mostly from an industry perspective. Third, previous work on understanding player behavior and how data analysis can be used to identify such behavior. These three areas are described below. DESIGN PATTERNS The use of design patterns to better understand levels is inspired by their use in software engineering, which were in turn inspired by design patterns in architecture. Kreimeier was among the first to adapt the concept of design patterns to the domain of digital games by identifying game design patterns. Björk et al. extend this work by studying how players interact with games and how entities in a game interact with each other. They identify over 200 patterns in game design ranging from the basic building blocks of games, such as the game world, to abstract concepts like player collaboration and immersion. The patterns are organized in broad categories such as “Patterns for Goals” and “Patterns for Narrative Structure.” Patterns are described in terms of how they are used, the choices a designer must make when using them, their consequences and relationships to other patterns. These patterns do not specifically deal with level design, but do relate to some level design concerns, such as balancing, goals, locations, and objects. For example, one pattern identified by Björk et al. is Pick-ups, described as “elements that exist in the game world and can be collected by players.” They go on to describe how pick-ups are used in a variety of games and the considerations a designer must make when choosing whether to include them or not. They describe general consequences of pick-ups, but they do not describe the immediate effects they have on a player’s behavior or the flow of a game. The level design patterns presented in this dissertation address these considerations. Björk et al. suggest four ways patterns can be used to support game design: idea generation, structured development, solving design problems, and communication. The level design patterns identified in this dissertation support these same uses. Another application of design patterns to games is Plass et al.’s study of educational games. They identify common patterns in educational games that increase enjoyment and engagement in players. These are high-level conceptual goals for designers to pursue, not patterns of mechanics as in Björk et al.’s work, or patterns of level design as presented in this dissertation. Examples include “Constructing things is fun and helps learning” and “Time and resource constraints make games fun and can improve learning.” These patterns were discovered through observational studies and interviews with children playing educational games. LEVEL DESIGN There are many books on level design written from an industry perspective. They discuss common practices and provide instruction on tools for aspiring level designers. In his book, Co takes the reader through the process of designing an FPS level, from brainstorming initial ideas, building the level using Unreal Editor, to testing and improving the level [6]. While useful references, neither this work, nor similar books by Bryne, Clayton, or Feil et al. present deep analysis of how level design creates gameplay. For example, Feil et al. describe the importance of overall pacing in a level. They discuss how a rhythm of rising and falling tension can contribute to the overall flow of a level without providing methods for creating these effects. Similarly, they discuss strategic considerations of terrain, such as access and height advantage, but do not discuss how they create gameplay. In contrast, the work presented in this dissertation provides specific, concrete idioms of level design described in terms of their direct impact on gameplay. Several shorter works examine single aspects of level design, from both academic and industry perspectives. The aspects examined can be broadly categorized as relating to gameplay – pacing, tension, and challenge – or space – spatial configurations and how the player navigates. PACING Pacing is the density of actions taken by the player in a level. Coulianos proposes methods to analyze and improve level pacing. Designers can plot the expected pacing as a sequence of gameplay elements. Playtesting can then be used to see how closely the player’s experience matches the designer’s expectations, leading to a series of iterative changes until the designer is satisfied. Davies also explores aspects of level pacing and suggests techniques designers can use to control pacing. For example, the player’s impetus to move is a key aspect of game pace, which the designer may want to increase or decrease. Movement impetus can be increased by elements such as a time limit or a threat from behind, or decreased by an obstacle or NPC interaction. TENSION Tension is the mental strain a game can create in the player as they struggle to survive or complete objectives. Level designers use tension to affect pacing. For example, NPCs can create tension by urging the player to move through the level faster. Its use is examined in depth by Wright, who conducted a study with subjects playing one of three levels that used NPCs to create tension differently. Completion times as well as the subject’s subjective impressions were compared to evaluate the methods. He found that urgency imparted from a friendly NPC was the most effective method, while chasing or being chased by enemy NPCs were less effective. CHALLENGE In his study of what makes games fun, Malone identified three main elements: challenge, fantasy, and curiosity [18]. All three of these are useful to level designers, but challenge is the most critical. Malone found the best way to create challenge is to provide clear goals whose attainment is uncertain. If the goal is unclear, the player will become frustrated. If the goal is too easy to attain, the player will become bored. Furthermore, if the goal is long range, there should be feedback given to the player that communicates progress towards the goal. SEGMENTATION Segmentation is a broad concept that can be applied to the examination of levels both in terms of gameplay and space. It refers to methods for breaking down aspects of the game into smaller elements. Zagal et al. describe three types of segmentation: temporal, spatial, and challenge. Temporal segmentation is closely related to pacing, as increasing or decreasing the length of time allowed for gameplay can affect tension and challenge. In terms of spatial segmentation, levels themselves are a form of this, but they can be segmented internally as well. As a player moves into a distinct section of a level, their behavior may be affected. For example, moving into a large arena with enemy NPCs will increase tension and difficulty. The third type of segmentation, challenge, also relates to pacing. Breaking up the challenges presented to the player allows the designer to control the level pace. SPATIAL CONFIGURATIONS Within spatial segmentations, the configuration of the environment is also a key concept in level design. Chen et al. compares level design to the architectural design that is used in real world buildings. When designing a building, the architect includes architectural devices to create specific effects, such as customizing a space to a particular use. The authors identify some architectural principles that level designers can apply to create spaces for gameplay, including having a clear path through the level, how to use different spatial organizations such as linear or hub and spoke, or including unique elements to break up the design. An examination of how space is used in team-based multi-player FPS levels was presented by Güttler et al. They identified common spatial configurations and how they contribute to gameplay. The key elements they studied are collision points and tactical choice. In a team multi-player level, the designer provides multiple routes through the level, allowing players the chance to make a strategic decision. The choice of route determines where in the level the two teams will eventually clash; these collision points are the major contested spaces where the game is played. There are some significant empirical studies that evaluate the effects of level design on gameplay. Gee studied the use of dead-ends in FPS levels. He identified ways in which dead ends are used and built example levels that included them or not. Subjects were observed playing levels and their preferences and playing time were reported. Results indicated that dead ends did not negatively impact FPS levels. An empirical study by Gonzales explored directional choices in FPS levels. Similar to the Gee study, they identified different techniques for presenting alternate routes and performed user studies on a set of representative levels. Survey responses and subject observations contributed to their conclusion that choice improves player immersion, as the lack of choice in a linear level can break the illusion of being in large, dynamic world. NAVIGATION A key use of spatial configuration in levels is in providing navigational cues to the player. This is particularly true in FPS levels as they are generally large, complex environments. Nerurkar examines some means level designers use to aid player navigation. Some, such as maps and navigation markers, are separate from the level design, but many are a function of the level design. Examples include features that attract the player’s attention, use of light and contrast, and directions from NPCs. Hoeg performed an empirical study of player navigation and player types in FPS levels. He identified elements that designers use to influence pathing decisions, including lighting, sound, and resistance, and formed a theory about how Bartle’s player types would react in each case. He constructed a level with multiple decision points, using different navigation cues. Subjects’ player types were determined by a survey, and their routing choices were recorded while playing the level. The results were compared to see if the theory was consistent with the player’s behavior. They found that some elements, such as placement of doors and motion, had strong correlation, whereas other factors had weak or no correlation. DESIGN PATTERNS While our user study is primarily focused on the effects of design patterns in single player levels, we explored design patterns in multiple aspects of FPS games. Of particular relevance are the patterns for combat NPCs and for weapons. Weapon and NPC design in FPS games fall into a grey area between game design and level design. While they are aspects of the game mechanics, and therefore game design elements, they are greatly influenced by the work of the level designer. Tuning of weapons and NPCs generally occurs late in the development process, and is a function of the constructed levels. As the final tuning of these elements are dependent upon their placement and use by level designers, they can be considered an aspect of level design. As such, patterns for these elements are described here along with the single player patterns. Other pattern collections are presented in Appendix A. SINGLE PLAYER FIRST-PERSON SHOOTER LEVELS The descriptions of the patterns explain how they can be used, the concerns designers must address, and the gameplay created. The fields are listed below: Description – A high level description of the pattern and the major design considerations. Affordances – Aspects of the pattern that can be varied by the designer. Consequences – A description of the gameplay the pattern creates. Relationships – Some examples from popular commercial games that illustrate the pattern. The use of the term "affordances" in this research is a bit idiosyncratic. In the field of design, the word typically means "the perceived or actual properties of the thing, primarily those fundamental properties that determine just how the thing could possibly be used." For example, the presence of a doorknob is an affordance that signals that a door may be opened. For this research we modify this definition slightly, so affordances are aspects of a pattern that can be varied by the designer ("perceived or actual properties") to alter the effect on gameplay ("how the thing could possibly be used"). Essentially, affordances are the knobs a designer can twist within a pattern to dial in different gameplay effects. The patterns are grouped into one of four following categories based on the type of gameplay produced. The categories are Positional Advantage, Large-scale Combat, Alternate Gameplay, and Alternate Routes. These distinctions are not mutually exclusive, a pattern might be perceived as being in one category or another based on its affordances. Furthermore, specific patterns may overlap, resulting in different effects and described in the relationships sections of each pattern. Positional Advantage – Spaces where one entity has an advantage over another. Sniper Location – A protected, elevated location that overlooks some portion of the level. Gallery – An elevated area parallel and adjacent to a narrow passageway. Choke Point – A narrow area with no alternate routes, causing entities to be exposed to engagement as they move through. Large-scale Combat – Areas designed to facilitate combat involving large numbers of entities. Arena – An open area or wide corridor. Stronghold – A confined area with good cover and limited access points. Alternate Gameplay – Introduce new elements that break from the established mechanics of the game. Turret – An area with a high-powered weapon where one side has a clear advantage. Vehicle Section – Sections of alternate gameplay where the player drives or rides in a vehicle. Alternate Routes – Create alternatives for the player in how they approach the level. Split Level – A corridor with an upper and lower section, where those on the upper section can attack those on the lower section. Hidden Area – A small area off the main route that contains items for the player. Flanking Route – An alternate path that allows characters to gain positional advantage. PATTERNS FOR POSITIONAL ADVANTAGE These patterns all result in one entity gaining an advantage in position over another entity. A positional advantage usually affords opportunities to attack other entities without being exposed to counter attack. SNIPER LOCATION Description: Sniper locations are one of the most common patterns. A character in a sniper location can attack other characters with long-range weapons while remaining protected. Any elevated position that overlooks some portion of the level is potentially a sniper location. They may be intended for use by either players, NPCs, or both. Creating a sniper location for use by an enemy rather than the player requires additional consideration. Enemies positioned in the sniper location may require special scripting to create the desired behavior; they should remain in place, using cover if available, and engage the player with long range weapons. Affordances: The height of the sniper location over the main part of the level How large of an area is available for the sniper The amount of cover available for the sniper The size of the area that the sniper can cover from the sniper location How accessible the sniper location is from the area overlooked Consequences: When confronted with an enemy sniper location, the player is forced to make careful use of cover or seek alternate routes to avoid being exposed to fire. This can increase the tension and slow the pace of a level while creating a challenge for the player. A player sniper location generally slows the pace of a level while lowering tension as the player is able to engage enemy NPCs without being exposed to enemy fire. However, if the sniper location is not isolated from the rest of the level, the player will have to defend the access point as well, increasing tension. Relationships: Sniper locations interact with many other patterns. They may be placed to cover an arena or a choke point. Most stationary turrets are also sniper locations. A shooting gallery is specialized type of sniper location. A sniper location with access may be a type of stronghold. Examples: In the level “Route Kanal” of Half-Life 2, the player encounters an enemy sniper location, shown in Figure 1. It is high above the player’s position, but has very little cover. The player can engage the enemy NPCs, but is exposed and needs to be cautious. Figure 1: Sniper location in Half-Life 2 There is a sniper location in the level “Corinth River” of Killzone 2. The player is on an elevated walkway overlooking a medium-sized area containing enemy NPCs. Both the player and enemy NPCs have cover, but by looking down from above, the player is able to locate the enemy NPCs and engage them. PATTERNS FOR LARGE-SCALE COMBAT These patterns provide areas for combat gameplay, with the player either engaging large numbers of enemy NPCs or a single powerful enemy NPC (a boss fight). STRONGHOLD Description: A stronghold is a confined area, generally with good cover. Characters in a stronghold can defend against attackers while remaining protected. A stronghold has limited access points so the defending characters can cover them easily. Affordances: The size of the stronghold The amount of cover available in the stronghold The number and type of access points If defending/capturing the stronghold is a level objective Consequences: Generally a stronghold would be designed as a defensible location for the player. The effect is usually to reduce the pace of the level, but in some cases, a large number of entrances or advancing enemy NPCs can have the effect of increasing tension and challenge. Relationships: A stronghold can be considered a specialized type of arena or sniper location. Entrances to the stronghold may be choke points. Examples: The Halo 3 level “The Covenant” contains a stronghold. The player is in a large open area and engages enemy NPCs entering through multiple entrances. These entrances are choke points that help keep the player from being swarmed by enemy NPCs, but it is challenging to cover them all at once. There is an instance of a stronghold in the level “Fish in a Barrel” of Gears of War, shown in Figure 2. The player and friendly NPCs are in a central area with minimal amounts of cover while being engaged by enemy NPCs from multiple directions. The effect is challenging and high tension combat. Figure 2: Stronghold in Gears of War PATTERNS FOR ALTERNATE ROUTES These patterns provide players with choices about how they want to engage the level. SPLIT LEVEL Description: A split level is a corridor with an upper and a lower section. Characters on the upper section can attack characters on the lower level. Players can choose the upper or lower route, or switch between them. Affordances: The difference in height between the levels The degree of openness between the levels, in terms of empty space The number of paths between the levels Consequences: Allows for different strategies and can increase the pace of a level as the player moves back and forth between levels. Relationships: If the corridor is narrow, the upper section could be a gallery. Using one section to avoid enemy NPCs in the other section makes it a type of flanking route. Examples: There is a split level in the “Lowlife” level of Half-Life 2: Episode 1, shown in Figure 3. The player is moving through a large open area with elevated passageways. The player must switch back and forth between the two paths to avoid the most powerful enemy NPCs. Figure 3: Split level in Half-Life 2: Episode 1 The Halo 3 level “Crow’s Nest” features a long split level section. The player may stay on the upper level and engage enemies on the lower level, or use the lower section and engage them directly. COMBAT NON-PLAYER CHARACTERS IN FIRST-PERSON SHOOTER GAMES - The work presented in this section is based on material originally developed in collaboration with Gabe Rivera. The patterns presented in this section are for the enemy NPCs in FPS games. Enemy NPCs are controlled by the game engine and are the main source of conflict during gameplay. While they could be considered aspects of game design rather than level design, they are placed by designers and their tuning and behavior are highly dependent on how they are used. Designers can control not only where the NPC is placed but also the NPC’s scripted behavior, how they are equipped, their level of health, their level of armor, and other variables. For this research we explored elements that pertain to all NPCs within the shooter genre and then analyzed various games to see if NPCs consistently fell into patterns. Patterns were identified by observing NPC behavior and discerning which elements were combined in the same way within a number of games. Each pattern is accompanied by our observations about how it’s used by designers to create gameplay, as well as a list of elements that define the pattern. ELEMENTS OF A NON-PLAYER CHARACTER Below is a list of elements that make up a NPC as well as a brief description of how they can be used by a designer to create gameplay during combat. These will be used in the pattern collection to categorize the specific patterns. Movement Type – This describes the way the NPC will typically move in a combat situation. Many NPCs employ multiple Movement Types and can switch between them depending on the situation. Flanking Intensive – The NPC will move to attack from unexpected directions, i.e. the NPC tries to approach the player from a different side than where the player’s attention is directed. Passive – The NPC will not move when attacking. Never straying too far from that location and available cover. Slow Push – The NPC will slowly advance on the position of the opposing force, usually in a straight line. This can be without the need for cover, but it is possible for the NPC to utilize cover while making its way forward. This main difference between this and Cautious is that it will constantly try to close the distance from its target and not try to stay away. Rush – The NPC will make a dash at a specific target without any regard for their safety, typically in a straight line. However, the main aspect of this movement type is that they will attack very fast and often try to close the distance between themselves and their target as fast as possible Cautious – When used, it means that the NPC is opting to move around the battlefield but tries to maintain a distance from its target. Often trying to utilize cover when possible and not closing the distance when possible. This is different from a slow push because this NPC tries to maintain a specific radius around its target, without advancing. Movement Range – This is how far the NPC will move during an engagement. This can be Low, Medium, or High. Movement Frequency – This is how often the NPC will change their position during an engagement. This can be Low, Medium, or High. Attack Frequency – This describes how often the NPC will initiate an attack. This can be Low, Medium, or High. Weapon Type – The patterns include the following. They are described in more detail in the following section: Sniping Weapon Close Blast Assault Weapon Projectile Power Weapon Melee Weapon Weapon Damage – A general indicator on how much damage the NPC will do to the player’s Health, Shields, or Armor. This can be Low, Medium, or High. Armor/Health – This denotes how much damage the NPC can take before being killed. This will typically be linked to how hard the NPC is to defeat. This can be Low, Medium, or High. Motive – This is an indicator of what type of combat encounter the NPC would create and shows its purpose to the designer. This hinges on three main factors that an NPC can affect: Challenge – The degree of difficulty within a combat encounter. Tension – The degree of mental stress the player experiences during a combat encounter. Pacing – The degree of movement that the player will engage in during a combat encounter A pattern can affect each of these three factors by creating a situation where they can be at Low, Medium, or High. PATTERN COLLECTION Below is a list of all the patterns that we have collected during our research. Each base pattern specifies the primary function of that general type, while each sub pattern denotes how that function is carried out. Soldier – An NPC that pressures the player from range. Grunt – A weak enemy that attacks from a medium distance, often in groups. Elite – A strong enemy that works to contain the player from a medium distance. Grenadier – A weaker enemy that maintains long distance to encourage players to move forwards. Sniper – An enemy that deals high damage from a long distance to force players to move carefully. Aggressive – An NPC that attempts to close the distance between itself and its target in order to increase pressure. Suicide – An enemy that immediately rushes at the player, at the cost of its own life. Swarm – An enemy that rushes the player in groups, but deals low damage individually. Berserker – A strong NPC that deals a high amount of damage over a prolonged amount of time. Carrier – An NPC that will spawn more NPCs during an encounter. Sacrifice – An NPC that creates more NPCs in the case of its own death. Summoner – An enemy that spawns more NPCs at a distance Tank – An NPC that poses a significant singular threat and prevents the player from proceeding Stationary Tank – A slow-moving NPC that deals high damage at a long range. Shield – An NPC with a large amount of armor, but only in a single direction. The following sections detail all of the base patterns and at least one of their sub patterns. SOLDIER Soldier is a NPC that will pressure the player from long range. Its main strategy is to control the available space in the encounter. NPCs of this type make up the majority of units during an encounter. They are primarily used to control pacing by forcing the player to take particular paths through the environment. These NPCs will have a weapon type that is an Assault, Close Blast, Sniping, or Projectile. Grunt Description: The Grunt is a weak NPC that will try to maintain a medium distance away when attacking. The main function this serves is to draw the player to forward through the level and increase the player's confidence. This pattern is distinguished by always having medium movement range, medium movement frequency, and light armor. The motive of the Grunt pattern is to create a situation with low tension and low challenge. Affordances: Movement type can be Slow Push, Flanking Intensive, or Cautious. Attack frequency can be either Low or Medium. Weapon damage can be either Low or Medium. NPC Relationships: The grunt has a special relationship with the Suicide pattern, because sometimes a grunt may change to the suicide pattern in the middle of an encounter. Examples: Halo: Combat Evolved - The Grunt is a small unit that appears in every game within the Halo franchise. It has a low amount of Armor and is usually to be equipped with an assault weapon that does a low (Plasma Pistol) or medium (Needler) amount of damage. They exhibit the special relationship with the Suicide pattern in that they will self-destruct in times of desperation. The range it keeps is either short or medium but tries to pester the player by implementing the Cautious movement type. During the campaign they primarily occur within encounters to create a lower challenge but increase the pace of the encounter. As a consequence, the player feels more empowered and will pursue a route that contains a higher ratio of grunts compared to any other path. This occurs in the level The Pillar of Autumn; often the designers put grunts down a particular corridor to encourage the player to move in that direction. This signals to the player that it is the correct route to follow while lowering challenge, increasing the pace, and lowering player tension. Figure 4: A Group of Grunts in Halo: Reach Half-Life 2 - The Metro Police Officer utilizes a Slow Push or Cautious Movement Type and primarily is equipped with an assault weapon, typically a sidearm. They will shift between the movement types in an effort to move a player forward. Typically this means that they will begin in a cautious movement type and, if they player doesn’t pursue them, will move toward the player in order to get the player to move. This doesn’t occur in any particular instance but can be seen where there are Metro Police Officers in levels such as Route Kanal or Water Hazard. In the game, they basically act as bait to simply pull the player forward. They are primarily seen as the main enemy in the early game and are increasingly used as bait in the latter half of the game. Figure 5: Two Metro police officers in Half-Life 2 EXAMPLE ANALYSIS To show the usefulness of NPC design patterns we will use them to analyze a short encounter and generate a new enemy type. The level Winter Contingency in the game Halo: Reach contains an encounter in which the group is tasked with bringing a communications outpost back online. This sequence starts with the team landing in front of the communications outpost in order to secure the location. After starting the level, the player encounters their first group of enemy NPCs in an Arena with Flanking Routes to the left and right. The NPCs that populate the arena are a small force of Grunts and Jackals. This encounter has a low amount of challenge and allows the player to gain a foothold without much effort. It is fairly easy for the player to move forward and incapacitate the Grunts, which fall under the Grunt NPC pattern. However, it is much harder kill the Jackals in a head on attack since they are a part of the Shield NPC pattern. The interplay between the Grunt and Shield patterns help to create a much easier encounter for the player by driving them to explore the area and flank the Jackals. The player goes into the encounter and immediately recognizes that most of the Jackals were located in the Arena, where the player is at a disadvantage. Since that place is the hardest to break through, the player is drawn to the left because the Grunts offer a lower level of resistance. The Grunts signal to the player this path is safer and encourages them to move through the Flanking Route. The player can now flank the exposed back of the Jackals, which has a pattern specific weakness of only being able to withstand a large amount of damage from one direction. We can analyze this encounter and explain it through the enemy NPC patterns that we have created. The designers used Shield NPCs in order to bar the player’s way from one direction and give the illusion of a higher degree of challenge. However, by adding in the Grunt NPCs it allowed them to encourage the player to move into an advantageous position. The interplay between these two types helped to create an encounter with a low amount of challenge but high amount of tension. WEAPONS IN FIRST-PERSON SHOOTER GAMES *Note: The work presented in this section is based on material originally developed in collaboration with Rob Giusti. To define and discuss weapons, game and level designers have re-purposed an existing classification system: the terminology used to refer to real-life weapons, terms such as “Sub-machine Gun” and “Sniper Rifle.” Though these classifications do easily explain the mechanics of the weapon, the use of such terminology fails to accurately describe gameplay behaviors and to encompass the fictional aspects of digital games. Knowing how a particular weapon functions in real life does not actually give an accurate depiction of how the weapon functions within a game. For example, the shotgun in Halo has a much shorter effective range than its real-life counterpart. Many similar weapons fall into different weapon patterns depending on how designers implement them. Though many action and adventure games use weapons, shooter games are affected by this lack of terminology more than others due to the fact that weapons are at the core of gameplay. In the vast majority of first-person shooters, the player's weapon never even leaves their view. In addition, weapons are the central method through which players interact with the world in these games. With this pattern collection we hope to create a language that can be used to describe weapons in a way that encapsulates the gameplay behaviors that each pattern elicits. Each pattern is named in a way that aims to be inclusive of all weapons, fictional or nonfictional, that elicits similar player behavior. We accumulated these patterns through analyzing weapons in popular and historically significant first- and third-person shooter games. ASPECTS OF WEAPON PATTERNS To provide a basis for defining patterns in weapon design, the following template will be used: Name – A descriptive identifier used to refer to the pattern that is recognizable and imparts the core functionality of the pattern. Description – A brief explanation of the typical features of a weapon derived from this pattern. Affordances – Aspects of the pattern that can be varied between different weapons within the pattern. Consequences – How use of the weapon pattern affects gameplay. Level Patterns – Relationships between the weapon pattern and patterns in level design. NPC's – Relationships between the weapon pattern and patterns in non-player character design. Examples – Uses of the weapon design pattern from popular commercial shooter games. Patterns contained within another are considered to be super- or sub-patterns of each other. Patterns are not mutually exclusive from each other; a weapon can fit multiple weapon patterns. A large number of affordances can be considered universal among weapon patterns, including: How much damage the weapon deals The range of the weapon The area of effect of the weapon How often the weapon can be used ("Cooldown") How many times the weapon can be used before needing to be reloaded (“Capacity”) How much ammunition a player can carry How carrying the weapon affects the player’s movement How the weapon imparts damage to the enemy (On hit, delayed, continuous, etc.) Any special effects that the weapon has on the enemy Any special abilities that the weapon bestows Repetition of a Universal Affordance within a particular pattern description signifies that pattern differs significantly within the pattern in that aspect. PATTERN COLLECTION PROJECTILE Description: Objects thrown or fired in a physics-defined arch. Most often, Projectiles are explosives that deal damage in a large area of effect. Projectiles are also associated with long reload times and small capacities. Projectiles also often have a low amount of maximum ammunition. Affordances: The range of the weapon If the effect is immediate or delayed The area of effect of the weapon Any special effects of the weapon Consequences: Projectile weapons are useful for circumventing cover. Also, they heighten the challenge through being more difficult to aim than other weapons. Level Patterns: Projectiles can be used to harm enemies in Sniper Locations or guarding Choke Points without directly engaging them. Players using Projectiles are often vulnerable to Split Levels and Galleries, due to ammunition limitations and a lack of sufficient cover. NPCs: Grenadiers, Elites, and sometimes Tanks use Projectiles to force the player out of cover and impose a greater threat. Projectiles allow players to take on large groups of enemies, such as Swarms and Carriers, and fight against heavy enemies, such as Tanks and Snipers, without engaging them directly. The long recharge times and tendency for Projectiles to have large areas of effect make them less effective against Berserkers and Suicidals. Examples: The Demoman class from Team Fortress 2 [54] has a Grenade Launcher that allows the player to fire pipe bombs at enemies. These pipe bombs explode on impact with an enemy; otherwise the bombs roll for a few seconds before exploding. In the Halo series, the rocket launcher is a weapon that is both a Launched Projectile and Power Weapon. The weapon launches a rocket at high velocity, creating a large explosion that can instantly kill targets, both those on foot and those in vehicles. However, the weapon carries very limited ammunition and takes up space in the player’s limited arsenal. A player firing Projectiles in Team Fortress 2 Thrown Projectile Description: A non-bullet object thrown by the hand of the player's character and categorized by short range and highly affected by gravity. Thrown Projectiles often have high damage or severe special effects, balanced by scarce ammunition. Affordances: Special effects associated with the physical object of the projectile Consequences: The player is able to attack opponents who are behind cover, however they are forced to keep in mind their ammunition and range limitations. Level Patterns: Thrown Projectiles allow players to defeat an enemy guarding a Choke Point, or players on another level of a Split Level. In areas with long distances, such as Sniper Positions, or with enemies at multiple angles, such as Arenas and Flanking Routes, Thrown Projectiles are not very effective. NPCs: Elites utilize Thrown Projectiles in order to pressure players who are taking cover. Some Summoners use their spawned units as a sort of Thrown Projectile as a way of deploying them. A player can use Thrown Projectiles much like normal Projectiles to attack heavy Tanks from behind cover. Thrown Projectiles are often more effective against solitary, close-range targets and less effective against loosely grouped Swarm and Grunt enemies. Examples: In Call of Duty 4: Modern Warfare 2 [52], the throwing knife is a powerful Thrown Projectile with harsh limitations. The weapon has a short range, however a hit with the knife immediately kills the enemy. A player also may only carry one knife at a time. Halo 3 offers players a handful of varied thrown projectiles. Fragmentation grenades can be thrown a good distance and rebound off any obstacles until they detonate after a set amount of time. Players also have the option of using plasma grenades instead, which attach themselves to level geometry and players on contact, but have a shorter range and smaller blast radius EFFECTS OF WEAPON PATTERNS ON LEVEL DESIGN By forcing the player to use particular weapons in certain parts of a level, the level designer utilizes the relationships between the weapon and level to best control the experience and gameplay. For example, in the Ravenholm section of Half-Life 2, the player begins the level with a weak Melee Weapon, Sidearm, and Assault Weapon. The player progresses through Arenas and Chokepoints with a numerous number of Grunt and Swarm enemies, resulting in high tension and challenge. Later, the player fights Berserker and Carrier enemies, but acquires a Close Blast weapon and moves into Choke Points where the player has the advantage. The tension and challenge drop to give the player a respite and allow them to learn how to utilize the weapon. As the player proceeds, the level patterns become more Arenas and Split Levels, forcing the player to use weapons accordingly, bringing the challenge and tension back up for the climax of the level. In multiplayer levels, weapon placement allows the level designer to direct players. The designer can hint at what weapons are best suited for a certain area, force players to carry an unsuitable weapon across an area to get somewhere where that weapon is more useful, or even make it more difficult to use a particular weapon from a particular location. The multiplayer level Blood Gulch in Halo has Sniping Weapons atop each base at the ends of the map, overlooking large amount of the level and subtly hinting at the advantageous Sniper Position. A Power Weapon, the rocket launcher, is placed in the center of the map, forcing players to travel a long distance and expose themselves in order to procure the weapon. The multiplayer level Blood Gulch in Halo APPENDIX A - ADDITIONAL DESIGN PATTERN COLLECTIONS MULTIPLAYER FIRST-PERSON SHOOTER LEVELS *Note: The work presented in this section is based on material originally developed in collaboration with Chris Ueda. In our examination of multiplayer levels, we will be paying particular attention to their relationship to single-player levels and their associated patterns. Certain elements of multiplayer design patterns have parallels to their single-player counterparts. While these parallels suggest a large overlap in design principles for the design of levels in a (FPS) game, there is a difference in design goals between single and multiplayer levels. The goal of the level designer is to provide a specific gameplay experience to the player. Experiences such as a distinct gameplay experience or narrative diegetic effect can be produced by designers through the use of level geometry, item placement, scripted events, and other level design elements. A single-player level is designed as a linear space, segmented into rooms separated by corridors. This allows the designer to create highs and lows in player tension, pacing the gameplay and giving the player opportunities to experience moments of intensity without tiring themselves out. For example, Half-Life 2, a single-player FPS, often makes extensive use of open spaces in which the player is guided through the level while being given visual cues tying narrative and world space together. The level tells the story rather than large blocks of text or cutscenes, adding to a sense of immersion. The difference in player count between single-player and multiplayer affects the way in which the designer needs to approach level design. When crafting a single-player level, the designer aims to tailor an experience to one player, but in designing multiplayer levels, the game state is now based on the inputs of other players, whose game-playing experiences the designer must all consider. An example of the differences between single-player and multiplayer levels is apparent in spawning points for players versus spawning points for NPCs (non-player character). While they have similar purposes (introducing new entities into the level), in multiplayer levels additional players are spawned in place of NPCs. In a singleplayer level a NPC can be created whenever the designer chooses, but in a multiplayer level, the designer must equally consider all players when designing spawning points in a level. As the spawn points of each player affects the encounter rate, and therefore the pacing of the game. If too high, a player may get exhausted by constant action, or get bored between respawns if it's too low. Level design patterns are employed by designers to explore design choices and craft the desired gameplay for a level. These patterns vary based on the requirements of the game. For example, FPS gameplay involves the use of space and resources in real-time in a way that makes cover or item pickups useful. Therefore, patterns emerge that relate to the placement and frequency of these objects, and these patterns differ according to the unique features that distinguish multiplayer from single-player gameplay. KEY CONCEPTS CONFLICT POINTS A conflict point is a location in a level which is designed to bring opposing forces into an encounter. These locations are key in managing rhythm and flow in multiplayer levels. By designing a level with conflict points in mind, the intensity and pacing that a given player experiences can be adjusted. To do this, designers can utilize elements of a conflict point such as chokepoints, strongholds, pickups, and objectives. Chokepoints and strongholds change the movement of players in and about a conflict point, while pickups and objectives provide players a focal point for encounters. A powerful weapon or a bunker may motivate players to prioritize combat in that area, increasing the overall intensity of the location over others. Examples include the flag's location in a CTF game of Halo: Combat Evolved, Control Points in Team Fortress 2, or the Farsight XR-20 (an extremely powerful weapon) in Perfect Dark. These are objectives that players can obtain to get an advantage, and naturally conflict will occur in their vicinity. Use of conflict points is critical to many design patterns, as multiplayer FPS levels depend on them for creating player encounters. For example, bomb sites in CounterStrike serve as the objective destination for the Terrorist forces. The objective of the Counter-Terrorist forces is to prevent the Terrorist demolition mission, and both teams are aware of the state of the bomb sites through in-game HUD cues. These areas are often camped, with one team lying in wait to ambush the other team. The expected combat in the conflict point reinforces player planning and coordination followed by a burst of high-intensity combat. To support this style of gameplay, these bomb sites often contain various types of cover and are connected to the rest of the level via small, easily ambushed entryways serving as chokepoints. PATTERNS IN MULTIPLAYER GAME TYPES Multiplayer FPS games require a different set of game rules and objectives from single-player. Sets of rules collectively known as game types are defined in order to provide specific gameplay experiences. These may include rules such as a priority object or location, or a score objective. Level designers apply key concepts of multiplayer level design in the context of a specific game type in order to create a playable level. CAPTURE THE FLAG (CTF) This game type has both teams simultaneously on offense and defense, trying to claim the other team's flag and bringing it back to their own base while protecting their own flag. The game type is similar to Control Point, especially when the flag is located at a team's base. The flag's starting location serves as a point of conflict, and is often a strongly fortified location, making defense easy and requiring coordinated offense to capture. After claiming the flag, a player must bring the flag to their team's own base. The enemy team must prevent the flag from being delivered by attacking the carrier. Flag carriers are encouraged to use alternate paths and shortcuts in order to evade the opposing team. Levels are often symmetric to ensure balance. Respawn times are long, allowing a team to press their advantage after defeating opposing forces. Examples include Unreal Tournament - Facing Worlds (symmetrical) and CTF4 in Quake 3 Arena. Blood Gulch in Halo: CE is a classic example, set in a wide, open canyon with rolling hills. On the two far ends, a single bunker houses each team's flag. Teleporters quickly move players from a base to the middle of the stage, but not the other way, allowing respawned players to return to the action. Team Fortress 2's Payload maps are a variation of the CTF format. In this game type the offensive team moves a cart forward by standing besides it, while the defense sets up fortifications to prevent progress. The linear path of the cart and the respawn system of TF2 distinguishes this game type as being closer to CTF rather than Delivery, described further below. Team Fortress 2's Goldrush, a Payload map where the blue team moves the cart along to its destination PATTERNS IN MULTIPLAYER LEVELS Multiplayer level design strives to create a level playing field. To provide gameplay options while maintaining this balance, beneficial structures such as sniper locations and alternate routes need to be viable, while the opposing players are provided with a valid counterstrategy. In Halo: Combat Evolved single-player, a sniper location provided a significant advantage to the player. In the multiplayer game, players in sniper locations must also be wary of counter attack from the complementary sniper location on the other side of the level, or rely on their teammates to protect a poorly defensible position. Team strategy may be required to make the most of a given pattern's potential, often reflected in a strong offensive or defensive feature of a location. ARENA Description: Open areas with good sight ranges. Promotes encounters as a result of visibility or traffic – arenas are often conflict points Affordances: Can contain a Control Point. Pickups will increase traffic and conflict in the area. Can include features such as battlements and alternate paths to prevent overcongestion. Consequences: If surrounding area is confusing or congested, adding arena features may improve traffic flow. Has sporadic cover, providing good defense but not concealment. Examples: de_aztec (Counter-strike) - The terrorist force cross an open, unprotected area and take cover behind the crates located at demolition point A. A ramp up from a lower floor and a hallway with clear view of the bomb point threaten the terrorist force's objective. Hang em' High (Halo: Combat Evolved) - An extremely open map, with small blocks for cover, and ramps leading up to a second level which surrounds the map. Catwalks crisscrossing the level can be accessed from the second level. These lead to powerful weapons, but players are vulnerable to attacks from below. Halo: Combat Evolved, Hang em' High: Many catwalks cross the length of the map Follow this link for the full writing: https://users.soe.ucsc.edu/~ejw/dissertations/Ken-Hullett-dissertation.pdf Follow Ken Linkedin: https://ca.linkedin.com/in/khullett Follow Next Level Design Join the Forum: http://www.nextleveldesign.org/index.php?/register/ Follow us on Twitter: https://twitter.com/NextLevelDesig2 Discuss on Discord: https://t.co/hkxwVml0Dp
  2. 'Map Design Theory' comes from the heyday of Halo 3's Forge Mode. This one holds a special place in my heart because it's one of the first articles that got me thinking seriously about level design. It covers all of the essentials of level design, and use examples to support the discussion points. This article was written exclusively with Halo 3 in mind, but is most definitely applicable to Level Design in other FPS games as well. Understanding map design can be a daunting task for anyone, but with a little perseverance and open mind it should be relatively easy to grasp. To start, design is all about having the right sets of mentalities and understanding, and three over-arching categories drive successful map design; Gameplay Knowledge, Vision, and Creativity. These three elements need to come together in unison for a map to work well on various levels. If you focus too heavily upon creativity and vision, the map may end up more aesthetically pleasing than it would have, but won’t necessarily play well. If you know gameplay and have a vision for map design, your map may come out a little dull even though it might be fun. I had a third point, but it left me, and now I have to pay alimony every month. Balance between the three separates the novice from the exceptional. There are no simple tricks to suddenly finding the balance; as with everything, it requires practice and mental familiarity.Knowledge:"Knowledge is power"Sir Francis Bacon said thatHe didn't work out.Knowledge boils down to understanding the various mechanics in Halo 3 in both general terms and specific ways such as; anti-camping concepts, getting a feel for the spawn system to encourage routes and flow, recognizing and preventing choke points (sometimes even effectively implementing them) and much more. However, the point isn't to be rehash previous ideas, rather to know WHY things are and WHY they are subsequently successful or not in their attempts. There's really no limit to what you can learn about map design. It’s just about taking the time to understand how each each aspect works in principle and how to use it effectively. Vision:Psychic map builder?That makes it sound difficult.Just think your map through.In a few words, vision can be described as being able to mentally visualize the next step like some sort of psychic map-builder. This can be difficult for people as not everyone is able to imagine in 3D, and the good news is, this isn’t always necessary for proper map design. Basic questions you should ask: What will the player movement be like? How do you want it to look and what are the major points of interest? Is it going to be mostly flat (too easy a joke) What of elevation changes? Will there be rooms, and if so how will you prevent camping? These are all things that you should think about while designing a map. Knowing what devices to envision results from a solid understanding of gameplay and design fundamentals. Essentially, the key to it all is trying to imagine how your idea will actually play out as a map within Halo 3, translating the physical form of the map you're imagining in to an actual gameplay environment, and determining whether or not it will work effectively. Creativity:Creativity, like any other expressive medium, is an important part of any effective map design. It determines uniqueness, flow, supported playstyles, weapon use, and key areas, if any. These should be minimally addressed in your design before you even start building.Thousands of downloadsfor a pallet conveyorCreative. 'Nuff said.It’s difficult to describe how to be creative or what spurs a design. Sometimes it’s a quick flash of inspiration; other times it’s a focal point that it is built off of. It varies on its creator, and from an ironically objective standpoint, it's luck. What complicates it even more is it can be often difficult to tie everything together, so having a clear vision of what you want to create before focusing on specifics is very important. A Haiku:Forge guides are fun, butdisclaimers are important.Please, please don't sue us.First, a few disclaimers before we start: the focus of this Forging 201 will not be to show you some new Forge tips or a solid set of information, in fact probably nothing will be particularly new. Everything that we'll be saying here you should think critically about; in other words, map design mentality.Second, while we'll try to leave things vague and open for you to think about, we'll be making our own assumptions and assertions throughout the piece. It's a guide, not a law, if you can give good reason for anything, supportive, contradictory or unrelated to the topics presented, and it helps your design, it's perfectly fine. Our assumptions are not necessarily fact, just keep that in mind.Map design is a puzzle; everything fits together to form one final product. All of the following topics are important interrelated factors in defining the resulting gameplay. Much as map design is being broken down in to various aspects and considerations for the purposes of this article, the real point of map design is understanding them not only in distinct terms, but most importantly how they interact to form the greater whole of a successful map.In no way is this discussion close to complete, nor can it ever really be. Map design is a constant learning and innovative process. There's no limit to what you can learn and do with it. As a whole, this guide has been a collaboration between Insane54 and MickRaider.Knowledge Player movement, often known as "flow" (and what it will henceforth be referred to as) is the base for map design. Player movement is how the players progress through your map in relation to the various objects in it, or in simpler terms, how players prefer to move about the map. There's no good or bad flow. Your map starts with a vision and the flow is the result. Different people have different ways of approaching obstacles in the environment, but as the map creator you can streamline (or expand) routes to better suit certain approaches. Flow is invariably affected by the map itself, so the design process should bring about the following questions: What's the ideal amount of players? How big is the map? What playstyles do you want to encourage? What weapons do you want players to use, and how often? i.e. weapon balance In Halo, players do not traverse the map on a cover-to-cover basis like Gears of War, nor do they move between random structures; open-area combat is a significant, if not defining, aspect of Halo 3's gameplay mechanic. Therefore, your map design should never be based off of cover or structures themselves, rather any cover provided should be a part of the larger scheme of things. In essence, the cover defines player flow (or choice of route) as opposed to giving them set paths to follow in order to remain behind cover. This will be expanded upon later.In general, every area on the map should be accessible by at least 2 paths. The more paths you put into an area, the more it will turn into a transitory area (as opposed to a camp spot). For example, players will more often traverse through Guardian's sniper area via the middle level than on the bottom, simply because it has four paths instead of two. Simple enough. That being said, you don't necessarily want to put many different paths for the sake of having them, just understand which areas call for it, and address them to prevent camping. After all, Halo is about movement, not "tactical waiting" as Sarge would say. Furthermore, your paths should have purpose as opposed to just diversifying routes, that is, they should affect gameplay in some way. Example: Guardian. A person is shooting from sniper spawn. Regardless of position, there are various ways to take him out, such as tactical BR shots or providing a distraction while teammates sneak from behind, among other avenues of attack. The point is, the map affords plenty of options, and each has a different level and type of risk associated with it, a balance of advantage and disadvantage. To summarize map flow (and subsequent player movement options) for a given situation should not only be suited to this situation, but also balanced with one another so that situations don't arise where one route is overplayed and the other, underused. Lines of Sight: What you can see at any given point, or rather, the damage you can inflict within your field of vision. In quantitative terms, it is your entire 360 degree viewing angle, adjusted by obstructions in your view (walls, barriers, etc).This can be accomplished due to a variety of weapon and grenades. However, the concept of 'good LoS' is somewhat misguided and inefficient in practical terms. In fact, lines of sight aren't particularly important in the first place. A player doesn't look directly at one point the entire game. Games are dynamic and have more to do with field of vision than lines of sight. Let's do away with the lines of sight idea (again, we'll continue to use the name for simplicity), and think about a very similar but much more important definition:Field of Vision is the angle at which the user can see enemy players. In normal circumstances, this angle is approximately 90 degrees. Unaffected "Field of Vision" Field of vision is, of course, different depending on the situation you're in, such as being in a tunnel with a shotgun or atop an open ledge with a sniper-rifle. Thus, determining what players will be able to see, and where, will have a significant effect on the routes they will use. In general, if the player can see the enemy at long range, a direct run is inadvisable by common sense. This changes at close range, especially with the use of the shotguns or assault rifles, as bullet spray is lessened. With this in mind, as a map builder, you can guide gameplay to preference in your map. On that note, you still want to include enough routes for escape, flanking, and other maneuvers.Height is important to lines of sight. People on towers have the advantage of cover from people below, and can use that to their advantage. Balancing power points with path and line of sight options is important and can be accomplished through clever grenade bounces and alternative paths.Players are dynamic and adjust to the situations they are in, and though you can't control their specific responses, you can set the stimulus that provokes those responses. In other words, you can't control the bee and its honey, but you can determine what flowers it has access to.Here are some of the generic comments you'll often see by forger and other players; "Cool structures", "needs more cover", "too open". A well designed map is not comprised of any of the above, or rather trying to understand map design in these simple terms is essentially flawed and misses the point of how larger design works in Halo 3. Structures, cover, and open areas are a part of map design, sure, but they are nowhere near the major focus of a map, they're more the result of design than an actual part of the design process. If you are ever finding yourself designing a map around random structures or cover, you should be going back to the drawing board and figure out how you are going to tie everything together.We've all encountered plenty of awesome structures out there. Structures are capable of defining a map, such as "Relic". You must be careful to have the map tie together though. Structures can be beneficial to a map design by directing players where you want them on a map. An interesting central structure that also has a tactical advantage can direct attention towards that structure and create interesting hot spots and gameplay opportunities. Let me take this moment to say that the goal for map design is not always to create some perfectly designed map that plays exactly evenly or balanced. Your goal should be to create a fun and unique experience that's balanced enough for both teams to have fun. Most importantly your design should offer different options to the player and allowing each of these to have a variety of possibilities. Therefore, there is plenty of room for structures to be a big part of your map design, but don't let that overshadow the overall design, any structure should instead be thought of in terms of whether or not it compliments the overall design. The most notable problem you'll find in structure-based maps is that they are reliant on players to run around in those structures. There should always be advantages and disadvantages to various flow routes, as explained before. Forcing players to be on some kind of structure to do well should be avoided at all costs. Players on the ground should be able to have fun, and people playing on structures should have some sort of advantage and disadvantage against those players.Cover can be thought of in the same regard. A map should never be defined by it's cover. Though at some point you will likely be giving players a chance to get out of a line of fire. Never, ever randomly place cover in a "middle" areas to make it "less open". When players make a decision, such as to go one route versus another, there should be another driving force. Throwing down a block in the middle that he can hide behind turns that into bland and repetitive game. In a good design the natural cover is often more than adequate. Though chances are at some point you'll need some kind of additional cover. Specific cover objects should be used as a last resort if a natural approach could not be found. Keep in mind that what you build should be what players will use to move around the map. In general, objects should be used to compliment lines of sight and flow. If you find that players are getting cut down in an undesirable crossfire, cover might then be necessary to break up the action. An area you designed should never be "too open". The amount of an open area varies depending on several factors, and quite often an open run might be desirable as opposed to the same area littered with unnecessary structures and cover. If you find that players are not using your routes as you had originally planned, cover can be used to help solve this issue if nothing else will work.Though spawns and objectives are generally placed once your map is already built, it is still good practice to keep them in mind when designing. This foresight can make the difference between a good map or a great map, and if you build a whole map without considering how you want spawning to work, then when you come to placing spawns you may find it hard to implement an effective spawning system.In general, it is important to have, at a minimum, two major areas for each team to spawn at. Applying what we learned before, try and visualize what the players will think once they spawn. How many route options do they have? Do they encompass the necessary possibilities that will allow the player to make proper use of this life? Will they be aware which direction they need to travel without taking the time to analyze their surroundings?While planning spawn points in advance can be difficult; it is important to remember that the way spawn points are placed is vital to how the map will flow. A player should have options straight off of his spawn, thus it is important to make sure that there is at least two paths from every spawn. Also it is important to check each and every spawn. Stand directly over the spawn, exactly copying what it will look like when the player spawns, and then consider exactly what a player could do with the spawn you have given them against various scenarios. Alternatively, you could kill yourself repeatedly. Things to keep in mind when placing spawn points. You should be pointed towards a possible path; you should be able to run straight forwards for 2-3 seconds without turning at all. In addition, put yourself in the shoes of a player who doesn't know the map. What options do you have? The player should never be completely hopeless. In general a spawn point should point towards a point of interest, such as an objective or a power weapon. It is bad form to point a player towards their own base and will often confuse and frustrate a player by doing so. Always give them an objective when they spawn. This can be especially useful in situations where players are not finding your weapons, having a spawn pointed at them will almost guarantee that they will happen upon it. The counter to this is that if a power weapon is over used, don't have spawn points directed at it or too close to it and it's use will decrease. Objective planning is similar. Make sure attacking and defending teams both have at least three options, and that each of these options have varying pros and cons. Often this fits directly into flow, but objectives offer some variations on the normal flow. A flag can be thrown down a higher area into a more open run, or can sneak around. The defense should have options as well. Once a flag is taken or a bomb is armed, what possibilities do they have? Again, make sure they are all different. There should rarely be a case where the defense has very little chances of success of returning or disarming. And of course, neutral objectives should be even for both sides. One last point we'd like to make: in most cases, don't put your objectives in corners! It's amazing how many maps make this mistake, not only does it limit flow possibilities for both teams, it turns the corners into camping areas and renders them highly susceptible to grenades. Some map designs require it, but this a rare occasion and should be avoided unless you've really thought about making this decision.Aesthetics often play a major role in the player's decision on where they choose to go. If we look at typical play styles, a player is generally reluctant to move from a normal hot spot of the map, even if it means getting to a higher point. This tends to only happen if they have a long ranged weapon. There are some important points to think about here also. Players want roam to run around, even if only in a small area. A cramped tower is much less likely to be used than one that is well spaced and flows well with the rest of the map. Never throw a random sniper tower to the side of a map, assuming that people will want to use it because it's a high tower. Expanding on this; a bland, basic area of the map will often be used less than a nice looking one, particularly by new players. The designer can use these visual cues to direct players to places they want. One mistake often made is "mounting" weapons on walls. Though this looks great and can often work wonderfully for more basic items, if the weapon or equipment is poking out sideways it can get in the way, and if the item is pushed to the wall (as it normally is), it can be hard to find if the player does not know the map. Therefore, if you want players to go to your power weapons, make them obvious to find. Exhibit them to the whole map, not just those who are standing right next to it. Consider the Rockets on The Pit, for example. They can't be seen from a large amount of the map's area, but as long as you are on the long hall/needler area you can see when they have respawned without being right next to them.Continuity is an "uninterrupted connection or union", and should not be confused with our earlier discussions on cover and structures or flow. Continuity means players make choices based on the choices available on the map. Good continuity lets players choose routes that will always lead to the destination they had in mind. Whether the destination is to flank an enemy position or a route to the opposing team’s high ground. Every part of the map the player can walk on has a specific purpose and eventually leads to a specific place on the map. A path/tunnel or corridor that appears, in terms of its direction, to lead to a given area of the map, but actually curves around and leads to a different area, can be confusing to players.The Pit is truly one of the greatest Halo maps of all time. There has never been a design that uses so many staple Halo weapons and play styles and combines them so well. You could spend a week looking at every part of it and appreciating it for how great of a map it really is. For this example we'll try and analyze what the designers were thinking and how this great map came about. FlowThe Pit generally plays towards BRs and Snipers, or mid to long range weapons. That doesn't exclude anything else, like the Sword, but close range is obviously not the main gameplay focus. There is enough variety of close, medium, and long range routes to keep the player on their toes. Let's take a look at some closer examples. How many times have you been rushing through the long hallway and just get demolished by grenades? Wouldn’t it make sense for Bungie to have put a block there so that wouldn’t happen? We realize that this aspect is built in to the design. By having the longest and straightest path to the enemy base, this encourages the player to subconsciously try to get there as fast as possible, although they know the risk. This is made fair and fun due to the fact that you’re rewarded by getting there faster than anyone else with the rockets, but with a high risk of dying. This is bluntly called "risk vs. reward." When looking at The Pit there are either 3 or 4 main routes. Each route should have a different advantage and disadvantage, height advantages, weapon spawns, line of sight to popular areas, etc. The hard part is not just balancing these, not to encourage even use, but so that each one has a different and interesting playstyle that all come together for a fun experience. A great example of this is "Runway" on The Pit (where the overshield is); it obviously is not a place that's good for slaying, being it has few lines of sight and field of vision to anything important, however it is an excellent flank, most particularly to the sniper tower. A sniper usually has his field of vision trained on the more traffic-heavy parts of the map on the opposite side. Another interesting point is that routes to an area have an effect on how it’s used. For example, let's examine the shotgun cave or sniper tower from The Pit. It is obvious that these places encourage players to use their respective weapons. These only have two main routes to them thus the foot traffic is naturally low, but increases due to the power weapons effect. If you want players to be moving to other areas of the map, they tend to have more paths such as each sides "Training" on The Pit). Knowing where you want players moving is what player movement is all about. Lines of SightWe can see how The Pit has a wide variety of sight lines. Though the cross map sniper battles from the tower, to the narrow and dangerous sword room. Each of these sight lines allow for a good variety of gameplay and excitement. We can learn a lot about the effect the sniper has on the map by examining one point in particular, the sniper tower. From the sniper tower the player can have a view of essentially their entire side, though the view of the oppositions base is drastically limited. This accomplishes two things, the first being so that the player is not able to dominate the entire map from one spot the entire game, which lends itself to the second, that the player is forced to leave his perch to find the enemy when they become wise and avoid his position. By providing a series of safe routes for the players to use the sniper tower's power is severely limited. This encourages map flow by directing players to certain areas to both prevent and defend against snipers. The sword room also provides an interesting assortment of lines of sight. The first and most obvious is the back hallway where a sword can dominate. This is cleverly countered by a long line of sight from training and green box where players can throw grenades and shoot in at a safe distance. This balance allows the area to be both powerful and vulnerable in a way that makes the gameplay fun. CoverThe Pit is a great example of a map that uses natural cover very effectively and in a way that works well throughout. Only in a few notable places do we see the addition of cover. The first obvious point is training's "Corner." This simple design allows for a safety area from the sniper tower or sword room, but as it has opening it is very easy to detect when a player is there. This makes it so the player must move from the area quickly or risk being spotted and grenaded out. The natural cover of The Pit shows us how important elevation changes are in a map. Simply by lowering the middle parts of The Pit it allows the player an alternate route to move around without being easily detected from other areas on the map. The height of the sniper is countered by the elevated height of the rocket tunnel entrance. This use of high and low areas allows The Pit to play dynamically and uniquely every time. Spawns and ObjectivesThe spawns on The Pit are well laid out to encourage the flow of the map. In general the spawns are weighted such that the players will spawn at the higher portion near green box or the shotgun tunnel. This is by design as this area is intended to be the highest trafficked area. The designers knew that as most battles would take place in this are they want to allow players the quickest routes back upon respawn. In order to prevent spawn trapping the second alternate spawn area is below the sniper tower. This area is less used, though serves important functions to separate the base into two distinct spawn zones. If we analyze the spawns further we'd notice how they always point towards a main route or looking at a power weapon/equipment. Even in some cases spawning directly on the overshield. The objectives on The Pit were obviously something the designers had in mind from the start. Getting the iconic callout, "The Pit," describes the room in which the objective will spawn. If we look closer at this we can see how the objective is located in the center of the room with two main routes in or out. The third route is through the front but requires a teammate to catch the objective or a box to jump out on. This balance makes it a challenge to get the objective both in an out, but not an impossible one. Points of Interest and ContinuityThere are a few main points of interest on this map. The first plays a crucial role in the map design even though it could be argued it was added as an afterthought, "The Green Box." This point on the map plays a very crucial role. It offers a safety zone from the sniper tower while still providing a variety of routes. The player could choose to continue through green tunnel to acquire the Active Camo, continue to the long hallway to get the rockets, or move down the map towards Training to flank the opponents. This point is something that the player is naturally drawn to due to it's color and size. This simple use of aesthetics plays a huge role in how the map ultimately plays. Continuity on The Pit is rather obvious. A friend said it best when he described a map as being "Wheel Chair Accessible". Every point is walkable by more than one route, even though every route is not necessarily connected. If we look again at the "Runway" we can see how this route connects both sniper towers through a safety route, while still having a connection to the middle of the map. If that middle route was not there this route would have been dangerous to the point where it would rarely or never be used. Guardian is a spiritual successor to Lockout of sorts. Being primarily designed around a center "circle" the map itself plays very uniquely to even it's predecessor and is definitely amongst the top ranking halo maps.FlowIf we look at an overview of Guardian we can see how the major player movement is designed to move in a counterclockwise circle. Now this doesn’t mean that it’s the only way people will go, but it’s actually the basis on which the map runs. The uniqueness of Guardian - it's counterclockwise movement, use of low and high routes, and successful mancannons - is what makes it so intriguing and fun to play. From this we can see an emergence of 4 major "bases". The sniper tower, Green platform, Gold room, and blue room. Each of these areas plays a major role in how Guardian flows. In general the play tends to focus heavily around controlling sniper tower or gold lift, but as Guardian has a tendency to support close range combat this is not it's only function. There is plenty of opportunities for flanking due to the assortment of low and high routes. Lines of SightBeing a room-based map the lines of sight on Guardian are broken up well and efficiently. There is a good assortment of long line of sights from the sniper tower and bottom of sniper tower to gold. The number of long lines are contrasted by the increased number of short ones such as green platform, blue room, and gold room. These short sight lines help to encourage the use of short range weaponry, which outnumbers the long/medium range weapons. The shotgun, hammer, and mauler play a critical role in how the map ultimately plays out. However, controlling the sniper rifle is very important as essentially the entire upper portion of the map can be controlled with it. CoverGuardian is another example of a map that relies on it's natural cover without the need for extra cover in most cases. Only in a few points do we see the addition of cover which is cleverly blended into the map itself. The first of which being the cover around the hammer.This cover is useful in a number of ways. The first being that it slightly breaks up the lines of sight between the bottom of sniper tower and the bottom of gold room. The second being that it provides cover in the likely event that a battle takes place between green platform and hammer. This cover is definitely an important element of the map design and without it the map would play very differently in these areas.The second use of cover is the trees on green platform. Again a very important use of cover to break up the sight lines between elbow and green platform. This makes it more difficult for a sniper to control the map from elbow and thus forces him to a higher location, where everyone on the map can easily see him. Without this cover it would be possible for a sniper to control elbow very easily and make a flank extremely difficult. The third use of cover is the glass window that protects blue room from the sniper tower. Without this critical piece of cover the sniper would be able to dominate the entirety of the upper portion of the map. By using this glass window a player could place shots on a sniper in the tower while still having a safety zone to retreat to when the situation turns against them. This window is very vulnerable from the green tree thus has a good balance of power and weakness that forces players to act fast and move on. Spawns and ObjectivesAs Guardian is an asymmetric map, spawning and objective balance is much more difficult. One team should not feel at a disadvantage by spawning at one side versus another. It is also important to have a good spawn spread so that predicting the spawns is difficult. Each of the main area on the map has a balanced assortment of spawns, with the main rooms having a higher weighting than the connecting walkways. This means that players will tend to spawn in one of four critical areas, while still having backup spawns in the event that each of these rooms is compromised. The objectives on Guardian are definitely something to take notice of. If we look at the transition between Lockout and Guardian we can see why they chose to take it in a different direction. In Lockout the flag spawned on the elbow, which made it difficult to move it away from. This played well due to the emphasis on short range combat. In Halo 3, the emphasis is more on medium to long range and if the flag was placed on the elbow then the player would have had an incredibly hard time moving it to a safer location. To help fix this problem they made the elbow the return point and placed the flag underneath blue room. By doing this they accomplished a balanced location that provides the player with a multitude of possibilities. The player could choose to run it towards the lift, which would take them to sniper and a short safe route to the flag. The downside of this being that that they would be very vulnerable while traveling through the man cannon. The second alternative is to take it up the ramp to blue window and run across the middle. Another short route but this requires that the attacking team controls the upper portion of the map. The final possibility is to take it back down towards gold room. This is the "safest" of all the routes as the flag runner is well covered, though the danger being that they will be running into the defense's major spawn areas. Points of Interest and ContinuityThe two main points of interest on Guardian are the sniper tower and gold room. The sniper tower is a very important location as it houses the sniper rifle and a sort of sniper perch. With the right skill set a player could control a large portion of the map from this location. This makes it very important to either control or prevent the other team from controlling this area. The gold lift is also an important point of interest as it provides a good variety of close and medium range combat and houses the active camouflage. The camo plays an important role in balancing the sniper's power so it is important that the player controls one or the other of these power items. It is also easy to defend gold room as they are somewhat protected from the sniper tower and can monitor 2 of the 4 main routes in by listening for the lift sounds. Being a circular flow map, the continuity is easy to identify. As the player could walk in a complete circle around the map it is important to connect routes together to provide enough variety so that they don't. The middle platform is an obvious connection point that connects the four main rooms with the quickest routes. As these routes are vulnerable from the sniper tower another combination of lower routes help to connect the map together without being too vulnerable. This combination of quick and dangerous, and slow and protected is one of the reasons that Guardian plays so well for almost all gametypes. While map design is of course an abstract business, designing of your own maps is even more so. We'll go through the process that the authors go through, and it should be noted that any way works fine if it works for you.Designing your map requires an understanding not just of what we've put above, but of the mentality that it gives you. You should be able to take any given map and break it down to it's core elements, and say what parts are what, why, and how it works. Depending on the person, this will often take anywhere from a day or two to weeks or months to truly understand. Once you've got that under your belt, you're ready to start designing your own maps.The first thing you want to envision is how the players will move through the map, or path planning. This can be done as simply as a 2D sketch with major path lines planned. The idea is that it's vague, but shows where I want my players to be moving around, and shows the basis of map movement. It's quite simple, but without one of these at least in your head, your map can be significantly worse. Your basic paths should be simple and well-thought out, from our example, The Pit has 3 or 4 major paths. All of these offer wildly different possibilities. Alternative paths are wonderful, and you're free to work with those, but for now we're only talking about major flow.Once you've got your flow down, you'll want to think about how people will interact with each other by lines of sight, field of vision, and height differences. Try to envision yourself in this kind of blocky, empty map, and what kind of gameplay you'd like to see yourself playing. Then, just think about how that gameplay can be encouraged by your design. Lines of sight, field of vision, and height differences can help that enormously.Well, we hope you've enjoyed our Forging 201 on the knowledge portion of map design. Remember that the point of this isn't to give you a set of information, but to start you in the right mindset. There's no way to ever know everything in map design; it's a constant learning and thinking process that we're hoping this may possibly spark.If it's clear you've got the drive and enough smarts to think through all the stuff above, that's all you'll need to be great at map design. 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