Counter-Strike: Source

Platform: PC
Publisher: Valve
Developer: Valve
Genre: First-person Shooter
ESRB Rating: M
Release: October 7, 2004

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Join the Counter-Terrorists or the Terrorists in this tactical team based FPS by the folks who brought you Half-Life. Using the Source engine developed for Half-Life 2, Valve breathes new life into this classed shooter, with upgraded physics and graphics.