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half life-counter-strike
half life:counter strike was first released as a mod of half life -
counter-strike
the retail version of Counter-Strike was published by Sierra Entertainment on November 8, 2000 for Microsoft Windows. -
counter-strike:condition zero
counter-strike condition zero, features a multiplayer mode, which features updated character models, textures, maps, and other graphical tweaks.
As of April 15, 2009, the game is one of the ten most played Half-Life modifications in terms of players, according to GameSpy.2.9 million retail copies have been sold -
counter-strike:source
Counter-Strike: Source (CS: S) is a multiplayer first-person shooter developed by Valve Corporation as a complete remake of the original Counter-Strike on the Source engine. -
counter-strike:global offense
Counter-Strike: Global Offensive (CS:GO) is a first-person shooter video game in the Counter-Strike series. It was announced to the public on August 12, 2011, and developed by Valve Corporation and their partner, Hidden Path Entertainment.
