Group items tagged

Abstract :"Petri nets are graphical and mathematical tool for modeling, analyzing, and designing discrete event applicable to many systems. They can be applied to game design too, especially to design serous game. This paper describes an alternative approach to the modeling of serious game systems and classification of motivation behavior with Petri nets. To assess the motivation level of player ability, this research aims at Motivation Behavior Game (MBG). MBG improves this motivation concept to monitor how players interact with the game. This modeling employs Learning Vector Quantization (LVQ) for optimizing the motivation behavior input classification of the player. MBG may provide information when a player needs help or when he wants a formidable challenge. The game will provide the appropriate tasks according to players' ability. MBG will help balance the emotions of players, so players do not get bored and frustrated. Players have a high interest to finish the game if the players are emotionally stable. Interest of the players strongly supports the procedural learning in a serious game."

"The article will illustrate and explain how we worked with research and our own and secondary literature to create a game that had the potential to create social change. The game Junomi was designed to address the problem of loneliness among Danish teenagers and create opportunities for the families to play and experiment with the ways in which they communicate together. The game is a location based smart-phone game that takes place in players' everyday environments around the city. Players invite close family members to play for an agreed period of time (for example a week or a couple of months). Throughout the game period, players create questions, each with three possible multiple choice answers, and place them on a map to be found by other players. When other players pass by the question locations on their everyday routes around the city, the questions pop up on the phones."

Abstract: "In this paper, we describe a methodology for capturing player experience while interacting with a game and we present a data-driven approach for modeling this interaction. We believe the best way to adapt games to a specic player is to use quantitative models of player ex- perience derived from the in-game interaction. Therefore, we rely on crowd-sourced data collected about game context, players behavior and players self-reports of dierent aective states. Based on this informa- tion, we construct estimators of player experience using neuroevolution- ary preference learning. We present the experimental setup and the re- sults obtained from a recent case study where accurate estimators were constructed based on information collected from players playing a rst- person shooter game. The framework presented is part of a bigger picture where the generated models are utilized to tailor content generation to particular player's needs and playing characteristics."

Abstract: "A recent trend within computational intelligence and games research is to investigate how to affect video game players' in-game experience by designing and/or modifying aspects of game content. Analysing the relationship between game content, player behaviour and self-reported affective states constitutes an important step towards understanding game experience and constructing effective game adaptation mechanisms. This papers reports on further refinement of a method to understand this relationship by analysing data collected from players, building models that predict player experience and analysing what features of game and player data predict player affect best. We analyse data from players playing 780 pairs of short game sessions of the platform game Super Mario Bros, investigate the impact of the session size and what part of the level that has the major affect on player experience. Several types of features are explored, including item frequencies and patterns extracted through frequent sequence mining."

Abstract Virtual worlds give us the opportunity to explore another self, a virtual character of the real life you. Massively Multiplayer Online Role Playing Games (MMORPGs) have become extremely popular over the last decade. It has also grown into a lucrative business. To keep the players, the game needs to be more than just a game. This study aimed at finding out what factors that determine which features of the character creation interface that are most important to players. The following research question was formed; "Which underlying factors affect how important different features of the character creation interface are to experienced MMORPG players? To be able to answer the question an extensive literature review was conducted. A qualitative approach was taken. Long interviews were made with five participants, two female and three male players. The interviews took place while they created a number of avatars in different MMORPGs. The interviews were then followed up. During the follow-ups, the impact the character creation process had for the players, were discussed. The findings indicate that the character creation interface is important for the players to get a good gaming experience. However different types of players require different things. Important features for the users to change were mainly; the head; the name; and adding parts of yourself on your character. The factors that determined the importance of these features were found to be; Player types; Identity types; Immersion levels; and whether or not the game or the gaming experience were new to the player. Another finding showed that the longer you have played a game the less bizarre the different races, classes and gender will seem. The study also indicated that the female participants had a hard time identifying with their male characters."

Abstract: "Video games that customize to a player's experience level and abilities have the potential to allow a broader range of players to become engaged and maintain interest as they progress in experience level. A game that uniquely customizes the player's experience could attract additional demographics to gaming, which will result in a distinct edge in marketability and potential revenue. This thesis examines a subsection of adaptive gaming systems from the perspective of identifying game factors that alter the level of difficulty. Our focus is to provide a solution useful to both research and commercial gaming communities by developing a system that simulates results offline yet can be integrated into online play. While online performance is the main goal of an adaptive system, the offline simulation provides several benefits. Offline simulation allows the elimination of insignificant factors from inclusion in the training and evolution phase of machine learning algorithms. In addition it provides commercial games with a useful tool or method for performing game balancing and level tuning. To test our approach we designed a test-bed version of the game Pac-Man. The experimental testbed alters environment variables to evaluate their effect on a set of selected response variables. Observing the results of several response variables provides the potential to represent multiple player states, though our focus is on controlling the difficulty for a player. The testbed will simulate the actions of both Pac-Man and the ghosts over a variety of different settings and strategies. The evaluation of a factor's significance and its effect size are calculated using a factorial analysis approach. This method allows the identification of factors relevant to both individual strategies, and the set of all player strategies. Finally, as a proof of concept for both the online and adaptation prospects of this method, we developed a prototype adaptive system. Utilizing the releva

Abstract: "Player metrics are an invaluable resource for game designers and QA analysts who wish to understand players, monitor and improve game play, and test design hypotheses. Usually such metrics are collected in a straightforward manner by passively recording players; however, such an approach has several potential drawbacks. First, passive recording might fail to record metrics which correspond to an infrequent player behavior. Secondly, passive recording can be a costly, laborious, and memory intensive process, even with the aid of tools. In this paper, we explore the potential for an active approach to player metric collection which strives to collect data more efficiently, and thus with less cost. We use an online, iterative approach which models the relationship between player metrics and in-game situations probabilistically using a Markov Decision Process (MDP) and solves it for the best game configurations to run. To analyze the benefits and limitations of this approach, we implemented a system, called GAMELAB, for recording player metrics in Second Life."

From the abstract: "Our goal is to create a better understanding on how to design encounters that affect interest levels in linear FPS games. Specifically, how exactly a player's interest levels can be raised intentionally. To accomplish this, we developed a method for measuring and comparing player interest levels based on electroencephalogram (EEG) data measured using a "Neurosky Mindset" unit, which is a commercially available EEG device. We measured player EEG data for the first 4 levels of the FPS game "Call of Duty: Modern Warfare 2" and calculated player interest levels for the entire length of gameplay. By referring to recorded gameplay videos, we were able to associate each increase in interest levels for each player to a specific point in game. From this data, we found and isolated points in each level where most players showed a rise in interest levels, and discovered that certain patterns existed between these situations. These findings led to another study where we further analyzed these situations and found out what factors caused most players to show a rise in interest levels. We were able to divide these factors into 6 different categories called Triggers: "Anticipation", "Concentration", "Surprise", "Frustration", "Overwhelm" and "Fear". As these triggers represent mutually exclusive elements that affect a player's interest levels, we found that in most situations where many test subjects showed a rise in interest levels, more than one trigger is present, a phenomenon we call Stacking. While our study is still ongoing, we believe that by using these triggers as guidelines, game designers will be able to intentionally plan and control the player's interest level for FPS games with a certain level of guarantee"

Abstract: "Games with a strong notion of story are increasingly popular. With the increased amount of story content associated with games where player decisions significantly change the course of the game (branching games), comes an increase in the effort required to author those games. Despite the increased popularity of these kinds of games, it is unclear if a typical player is able to appreciate the rich content of these games, since any given player typically only experiences a small amount of that content. We create a non-branching game that simulates branching choices by providing players with choices followed by immediate textual feedback. We hypothesize that this game, where player decisions do not significantly change the course of the game, will maintain the player's sense of agency. Experimentation showed that in a text-based story with forced-choice points there were in most cases no significant difference in players' reported feelings of agency when they experience a branching story vs. a linear story with explicit acknowledgement of their choices."

Abstract: "It has been well-noted that contemporary digital games tend to design for a relatively high skill threshold engineered to appease a well-entrenched and digitally literate audience (Hayes, 2005). Such design practices, however, serve to disenfranchise new and novice players wanting to learn to play. This novice-expert divide is a significant barrier to entry for individuals wanting to play digital games, and given that digital games are seeing increased use in pedagogical contexts (Akilli, 2007; Becker, 2007; Nieborg, 2011; Shelton, Satwicz, & Caswell, 2011; Ulicsak, 2010), such skill-based barriers further complicate the seamless incorporation of digital games into the classroom. In an effort to explore how we might bridge the gap between new and weathered players, I created three tutorials for World of Warcraft (2004) in an attempt to improve the existing tutorials for newer entrants to the game. These new tutorials offered different modalities of instruction, as well as instructional strategies in assisting newer players. Tutorials were designed using the Structured Sound Functions (SSF) model of instructional design, following the Attentional Control Theory of Multimedia Learning (ACTML). The tutorials were then analyzed for their effects on play outcomes, player engagement, and player motivations using the Dick and Carey (2011) three-stage model of formative evaluation. This work thus makes two important contributions. First, this research conducts a much-needed in-depth study of game tutorials, which is an area yet to be well-charted in the disciplines of either education or games studies. Secondly, by analyzing the results of the formative evaluation, I conclude that players react favorably to a faded or "just-in-time" instructional strategy-an approach to player scaffolding which showed significantly increased motivation for play, engagement, and play mastery among novice participants. Implications for game design and future research are disc

Abstract: "People experience emotions when playing videogames. It can be argued that these emotions are their main reason for playing. In this paper, we investigate whether colors can be used in videogames to elicit specific emotions. We ran an experiment with a videogame in which four different colors, associated with four specific emotions, were used in four different conditions (in this case, four different rooms in the game). After each condition we measured the players' emotional responses by means of a Self-Assessment Manikin (SAM) questionnaire. Our analysis revealed that the color red evoked a highly-aroused, negative emotional response, while the color yellow evoked a positive emotional response. These results were significantly different from the emotional responses measured for other colors. Furthermore, we found that inexperienced players showed much more explicit reactions to colors than experienced players. We conclude that the use of colors is a suitable method for game designers to elicit specific emotional responses from the players, in particular from novice players."

"The UT^2 game bot, created by computer scientists Jacob Schru, Igor Karpov and Risto Miikkulainen, won the Humanlike Bot Competition at the IEEE World Congress on Computational Intelligence (WCCI 2012). "The idea of the competition is to evaluate how we can make game bots, non-player characters (NPCs) controlled by AI algorithms, appear as human as possible," explains Miikkulainen, professor of computer science in the College of Natural Sciences. "It is generally recognized that NPCs are relatively weak in most video games: their behavior is predictable and mechanical, and they often make mistakes that human players would be unlikely to make. Players often enjoy playing against other humans, because it provides a more interesting game experience. The goal of the competition is to promote more research in human-like bots, as well as evaluate how well we are currently doing in this area."

Abstract: "Herein is proposed the creation of an Application Program- ming Interface (API) for the Unity 3 and 4 video game de- velopment engine that not only reads behavioral measures from traditional video game input devices (such as if there has been an increase in mouse movements and clicks) but also takes into account physiological measures from biomet- ric devices (such as an increase in respiratory rate). The API parses these inputs based on study results that correlated player performance and engagement with physio- logical signs across several dierent game genres. Through the use of several rudimentary machine learning algorithms, raw physiological data is transformed into data relevant to a developer, including player engagement. The results of these calculations allow a game designer to have powerful tools for detecting when players experience certain emotions, and al- low for the design of aective games. Furthermore, the API also exposes the raw data to de- velopers wishing to propose and utilize their own learning algorithms, to allow for a rich development environment for developers of all skill levels. These development tools will enrich the game experience for the player, as well as prepare designers for the use of the next wave of non-traditional in- put hardware. This report serves to illustrate the current status of the API. A brief overview of the signicance of galvonic skin re- sponse (GSR), heart rate (HR), and respiratory rate (RR) in detecting player performance and engagement will be fol- lowed by a discussion of the API itself and the design choices therein."

Abstract: "Player coordination is a key element in many multi-player real-time digital games and cooperative real-time multi-player modes are now common in many digital-game genres. Coordination is an important part of the design of these games for several reasons: coordination can change the game balance and the level of difficulty as different types and degrees of coordination can make the game easier or more difficult; coordination is an important part of 'playing like a team' which affects the quality of play; and coordination as a shared activity is a key to sociality that can add to the sociability of the game. Being able to exercise control over the design of these coordination requirements is an important part of developing successful games. However, it is currently difficult to understand, describe, analyze or design coordination requirements in game situations, because current frameworks and theories do not mesh with the realities of video game design. I developed a new framework (called PLATO) that can help game designers to understand, describe, design and manipulate coordination episodes. The framework deals with five atomic aspects of coordinated activity: Players, Locations, Actions, Time, and Objects. PLATO provides a vocabulary, methodology and diagram notation for describing and analyzing coordination. I demonstrate the framework's utility by describing coordination situations from existing games, and by showing how PLATO can be used to understand and redesign coordination requirements."

abstract: "This work focuses on the design and implementation of an educational game for deployment on the Xbox 360 commercial game console. Video games can be extremely powerful and effective learning tools when deployed with methodical precision. Currently, no learning tools are available for commercial consoles that focus on teaching core concepts in Engineering. This work presents an overall design for an educational game to address Number Systems in the scope of the Electrical and Computer Engineering curricula. BINX is an educational adventure game designed to address Number Systems and their arithmetic operations in Digital Logic Design, a core course is Electrical and Computer Engineering programs. Object Oriented Design Principles were used in the development of this game. This work presents one sublevel implemented using the XNA framework - a Microsoft Software Development Kit (SDK).The BINX gameplay takes place inside a computer where a malicious virus is threatening the computer's operability. The player has to find the virus and eradicate it by disconnecting the terminals of the graphics processor. The player has the opportunity to practice before taking on the Boss Challenge. In the practice phase, the player practices number conversions without fear of penalties. In the Challenge phase, the player is timed and has to perform the number conversions before the allotted time expires. The combination of practice and challenge provides players with the ability to practice number conversions and, when ready, to take on the challenge task where assessment is conducted to provide the player with the knowledge of how well he/she has performed on the challenge. The number conversion level of BINX was implemented and formally evaluated showing improvement in student scores after using BINX."

Abstract :"We present an attempt at exploring the search space of weapons in team-based multiplayer First-Person Shooters (FPS). At the foundation of the experiment is Team Block- head Wars (TBHW), a game that we developed for the pur- poses of this project. TBHW allows human players to enjoy classic multiplayer FPS gameplay and uses a genetic algo- rithm to continuously generate new weapons. A weapon's genome consists of ten real-valued parameters, which to- gether form a vast search space that includes common FPS weapon tropes. The evaluation function scores weapons on the basis of their use by players. The game also generates 3D meshes to visually represent the generated weapons for easy player recognition. While TBHW is work in progress, preliminary results are encouraging."

"a method for the automatic generation of virtual players that adapt to the player skills; this is done by building initially a model of the player behavior in real time during the game, and further evolving the virtual player via this model in-between two games."

Abstract: "Search-based procedural content generation methods allow video games to introduce new content continually, thereby engaging the player for a longer time while reducing the burden on developers. However, games so far have not explored the potential economic value of unique evolved artifacts. Building on this insight, this paper presents for the first time a Facebook game called Petalz in which players can share flowers they breed themselves with other players through a global marketplace. In particular, the market in this social game allows players to set the price of their evolved aestheticallypleasing flowers in virtual currency. Furthermore, the transaction in which one player buys seeds from another creates a new social element that links the players in the transaction. The combination of unique user-generated content and social gaming in Petalz facilitates meaningful collaboration between users, positively influences the dynamics of the game, and opens new possibilities in digital entertainment."

Abstract: "Cloud gaming now makes any computer game playable on a thin client without the previous worries and frustrations about the hardware requirements. It frees players from the need to frequently upgrade their computers as they can now play games that are hosted on remote servers with a broadband Internet connection and a thin client. However, cloud games are intrinsically more susceptible to latency than online games because game graphics are rendered on cloud servers and thin clients do not possess game state information that is required by delay compensation techniques. In this paper, we investigate how the response latency in cloud gaming would affect users' experience and how the impact of latency on players' experience varies among different games. We show that not all games are equally friendly to cloud gaming. That is, the same degree of latency may have very different impacts on a game's quality of experience depending on the game's real-time strictness. We thus develop a model that can predict a game's real-time strictness based on the rate of players' inputs and the game screen dynamics. The model can be used to simultaneously enhance players' gaming and optimize the operation cost of data centers."

"The game enjoyment threshold model was used to evaluate player feedback in the feasibility study of a serious game, Wellness Partners. This game was purposefully developed as a web-based application that combines digital gaming and social networking to promote physical activity and a healthy lifestyle. The game design team led by the second author consisted of current students and alumni at the Interactive Media Division at the School of Cinematic Arts, University of Southern California. The primary participants were middle-aged university staff (egos) and they were asked to invite at least one family member or friend to enroll in the game as their wellness partners (alters). Players can accumulate points by sending status updates about their physical activities or setbacks. They can redeem their points to collect virtual objects or play animations of a virtual character related to healthy activities. A tag cloud is generated based the frequency of physical activities reported by members in a playgroup."