Users Playing this game are also playing:

Halo: Combat Evolved
Halo: Combat Evolved
Geometry Wars: Retro Evolved
Geometry Wars: Retro Evolved
Sonic Adventure 2
Sonic Adventure 2
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Halo 2
Sword of the Stars: Collector's Edition
Sword of the Stars: Collector's Edition

Users who own this game also own:

Batman: Arkham Asylum
Batman: Arkham Asylum
Portal
Portal
BioShock
BioShock
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Left 4 Dead 2
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Dead Space

Users who love this game also love:

Half-Life
Half-Life
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Fallout 3
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Mass Effect 2
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Half-Life 2
Crysis
Crysis