Crysis

Steam is a digital distribution, digital rights management, multiplayer and communications platform developed by Valve Corporation. It is used to distribute games and related media online, from small independent developers to larger software houses. Steam also has community features, automated game... updates, in-game voice and chat functionality. As of January 2012, there are 1504 games available through Steam, and 40 million active user accounts. The concurrent users peak was 5 million on January 2, 2012. Although Valve never releases sales figures, Stardock, former owner of competing platform Impulse, estimated in 2009 that Steam had a 70% share of the digital distribution market for video games. Many major publishers have large catalogs available on Steam, including Bethesda Softworks, Activision, Rockstar Games, Electronic Arts, Square Enix, 2K Games, and Sega. Steam's primary service is to allow its users to download games and other software that they have in their virtual software library to their local computers. Steam-integrated games are stored as single non-compressed archive files with the extension .gcf .
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Valve Corporation is an American video game development and digital distribution company based in Bellevue, Washington, United States. Founded in 1996 by former Microsoft employees Gabe Newell and Mike Harrington, Valve became famous from its critically acclaimed Half-Life series, . It is also... well known for its social-distribution network Steam; and for developing the Source engine, which has been used in every Valve game since its introduction in 2004. Valve was founded by long-time Microsoft employees Gabe Newell and Mike Harrington on August 24, 1996 as an L.L.C. based in Kirkland, Washington. After incorporation in April 2003, it moved from its original location to Bellevue, Washington, the same city in which their original publisher, Sierra On-Line, Inc., was based. After the success of Half-Life, the team worked on mods, spin-offs, and sequels, including Half-Life 2. All current Valve games are built on its Source engine, which owes much of its success to mods and sequels.
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