Group items tagged

From the abstract: "n the last decade the popularity of MMOGs has exploded. Unfortunately, the demand has far outweighed the resources commercial game providers can provide. Many MMOGs are suffering from scalability issues, resulting in game world partitioni ng, service down time and server crashes. The centralized server architecture of most modern day MMOGs is unable to cope with this increase in the number of participating players. Hence, there is a need for a scalable network architecture which can support these large number of players without affecting the overall gaming experience for each player. In this paper, we provide a review on the existing networking infrastructure solutions for MMOGs. This includes description and comparison of different im plementation techniques for the deployment of massive multiplayer on-line games, which work as a client/server and peer-to-peer paradigms. "

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."

From the abstract: "This thesis is dealing with what have been identified as "pervasive games". Investigation and analysis of reasons behind their appearance, popularization is made. Different trends within classical game-development and theory of classical game-design are investigated to establish similarities and differences, challenges and solutions this newly emerged type of games is introducing. Knowledge presented in theoretical sections is used to design, develop, deploy and test a game-environment for mobile platforms that is adjusted for campus area. This designed game-environment consists of two essential components: Front-End, which is represented by Android mobile application and Back-End server logic. Both of components were designed, tested and implemented. Designed game-environment received a name "DTU GoblinsNGold and has been launched. It is made available publicly worldwide through Google Play market. All of these aspects and milestones are described in details inside practical part of this thesis. During game-environment testing valuable data was received that described all aspects of functionality of implemented system together with behavioral patterns of players. These results of deployment together with conclusions are presented in later sections."

"There's a recent tradition of developers screwing with pirates-from releasing enormous, immortal pink scorpions on them, to booby trapping their games with glitches when they get cracked. This weekend, Greenheart Games, creator of Game Dev Tycoon, just blew the curve for everyone. This is fantastic."

Abstract: "Cloud gaming provides game-on-demand (GoD) services over the Internet cloud. The goal is to achieve faster response time and higher QoS. The video game is rendered remotely on the game cloud and decoded on thin client devices such as tablet computer or smartphone. We design a game cloud with a virtualized cluster of CPU/GPU servers at USC GamePipe Laboratory. We enable interactive gaming by taking full advantage of the cloud and local resources for high quality of experience (QoE) gaming. We report preliminary performance results on the game latency and frame rate. We find 109 ~ 131 ms latency in using the game cloud, which is 14% ~ 38% lower than 200 ms latency experienced on a thin local computer. Moreover, the frame rate from the cloud is 25% ~ 35% higher than that of using a client computer alone. Base on these findings, we anticipate game cloud to have a performance gain or QoS improvement of 14% ~ 38% over video gaming on a thin client device such as a smartphone or a tablet computer."

"In the first two parts i and ii of this series, I put together an initial model for node.js multiplayer tic-tac-toe game then bolted in a backbone.js controller framework, which allows clients to Backbone.Model.sync model states to backing server. This post completes the game implementation by adding asynchronous plumbing for synchronizing game state amongst game clients."

Her name is Angelina: she runs on a heavy-duty Mac server and she's building some addictive computer games for you. Angelina (a tail-recursive acronym for "A Novel Game-Evolving Labrat I've Named ANGELINA") is a project in evolutionary computing by Michael Cook, a PhD candidate at Imperial College in the UK.

RTF (Real Time Framework) with one of the cases implementation of multiplayer online games on multiple servers

Abstract: "The most popular Facebook games are being played by millions of users, sometimes only a few weeks after introduction. Although several of these games and their users have been studied, there currently exists no open-source version of such a game. In this thesis we present the design, implementation, and performance analysis of WebHack, a Facebook-integrated multiplayer game. WebHack is built upon the classic, but still popular, game of Nethack. We discuss the technical difficulties with file handles, process limits, communication networks, and handling failures. Further, we consider aspects specific to legacy applications, for example legal issues and technical limitations. We propose methods to circumvent these issues, and show a successful integration of the legacy game Nethack into our Facebookintegrated game system. We present the design of our system and evaluate the performance of the design in various scenarios. Among other results, we show that WebHack is a highperformance system, able to support over 300,000 concurrent players, handle arrival rates for up to 1,750 new players per second for over 60 seconds, and is able to recover within 10 seconds from a server failure."