Valve Corporation, often referred to as Valve Software or simply, Valve, and stylized as VALVE is an American video game and digital distribution developer based in Bellevue, Washington. Their first game, Half-Life, was highly acclaimed, and since they have gone on to develop more franchises, including Left 4 Dead, Team Fortress, Portal, Day of Defeat, as well as, Counter-Strike, all of which are first-person shooters. Valve also developed the popular Steam content delivery client. Steam is now
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