Valve Corporation

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Valve Corporation is an American video game development and digital distribution company based in Bellevue, Washington, U.S. that was founded in 1996, and made famous by its first product, Half-Life, which was released in November 1998, and by its distribution software, Steam. They are known for their first-person shooters, the Source engine, and long development cycles.



Valve was founded as an L.L.C. based in Kirkland, Washington. After incorporation in April 2003,[2] 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. The company has developed six game series: Half-Life, Team Fortress, Portal, Counter-Strike, Left 4 Dead and Day of Defeat. Valve is noted for its support of its games' modding community: most prominently, Counter-Strike, Team Fortress, and Day of Defeat. Each of these games began as a third-party mod that Valve purchased and developed into a full game. They also distribute community mods on Steam.

Since Valve Corporation's debut, it has expanded both in scope and commercial value. On January 10, 2008, Valve Corporation announced the acquisition of Turtle Rock Studios.[3] On April 8, 2010, Valve won The Escapist Magazine's March Mayhem tournament for the best developer of 2010.[4] They beat Bioware in the finale and Zynga in the semi-final.

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