Users who own this game also own:

Half-Life
Half-Life
Starcraft
Starcraft
Metal Gear Solid
Metal Gear Solid
Far Cry
Far Cry
Counter-Strike: Source
Counter-Strike: Source

Users who love this game also love:

Doom 3
Doom 3
Freedom Fighters
Freedom Fighters
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Unreal Tournament III
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Phoenix Wright: Ace Attorney Trials and Tribulations
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Star Trek: Armada II