A browser game is a computer game that is played over the Internet using a web browser. Browser games can be run using standard web technologies or browser plug-ins. The creation of such games usually involves use of standard web technologies as a frontend and other technologies to provide a backend. Browser games include all video game genres and can be single-player or multiplayer. Browser games are also portable and can be played on multiple different devices, web browsers and operating systems. 
Browser games come in many genres and themes that appeal to both regular and casual players.
Browser games are often free-to-play and do not require any client software to be installed apart from a web browser or browser plug-in. In some cases a game may be free, but charge for extra in-game features. Multiplayer browser games have an additional focus on social interaction, either between several players or on a massive scale. Due to the accessibility of browser games, they are often played in more frequent, shorter sessions compared to traditional computer games.
Browser games can take advantage of different technologies in order to function.
Browser plug-ins can be used to provide game technologies after being installed by the user.
|Windows||Mac OS X||Linux||License[notes 2]||Installed base[notes 3]|
|Java||Yes||Yes||Yes||Open source (free)||78%|
|Silverlight||Yes||Yes||Partial (Moonlight - LGPL)||Proprietary||62%|
Browser games can be a distraction in work environments, causing lost productivity. Critics cite examples such as the occurrence of May 2010, when Google replaced their normal logo with a playable rendition of Pac-Man. A small scale study of 11,000 users concluded that Google's playable logo caused users to spend an extra 36 seconds on Google's homepage, which could be extrapolated to 4.82 million hours over Google's 504 million unique users. Assuming all of this time was lost during time that would have otherwise been spent productively, the game could be considered to have incurred a time cost of US$120 million in man-hours.
- Availability refers to the latest stable version only.
- Refers to the reference implementation. There may be alternative implementations under different licenses.
- Stated as a percentage of web browsers.
- D Schultheiss: Long-term motivations to play MMOGs: A longitudinal study on motivations, experience and behavior, page 344. DiGRA, 2007.
- "Graphics — W3C". W3.org. 2010-02-18. Retrieved 2010-05-20.
- "The PBBG Project". Pbbg.org. Retrieved 2010-05-20.
- C Klimmt: Exploring the Enjoyment of Playing Browser Games, page 231. CyberPsychology & Behavior, 2009.
- E Adams: Fundamentals of Game Design, page 80. New Riders, 2009.
- By Stephen DownesAugust 17, 1999 11:01 p.m. "Fun and Games With DHTML ~ Stephen's Web ~ by Stephen Downes". Downes.ca. Retrieved 2010-05-20.
- Anthony, Sebastian (2009-12-11). "3D browser apps and games creep ever closer with the WebGL draft standard". Downloadsquad.com. Retrieved 2010-05-20.
- "Google Web Toolkit Blog: Look ma, no plugin!". Googlewebtoolkit.blogspot.com. 2010-04-01. Retrieved 2010-05-20.
- "Mozilla Firefox 4 Release Notes". Mozilla.com. 2011-03-22. Retrieved 2013-06-29.
- "WebGL (Preliminary)". MSDN. Microsoft. 25 July 2013. Retrieved 26 July 2013.
- "Flash EULA". Retrieved 2011-03-10.
- "Web Browser Plugin Market Share / Global Usage". Statowl.com. Retrieved 2010-04-08.
- Moving to OpenJDK as the official Java SE 7 Reference Implementation
- Java Platform, Standard Edition 7 Reference Implementations
- "Shockwave EULA". Retrieved 2011-03-10.
- "Shockwave Player Adoption Statistics". Adobe. Retrieved 2010-04-08.
- "END USER LICENSE AGREEMENT". Retrieved 2011-03-10.
- "Thoughts On Browser Plugin Penetration". Unity Technologies. Retrieved 2011-03-10.
- "Google Pac-Man eats up work time". BBC News (BBC News). 2010-05-25. Retrieved 2011-06-27.
- Frum, Larry (2010-05-25). "Google Pac-Man eats 4.8 million hours". SciTechBlog (CNN). Retrieved 2011-06-27.