Developer | Valve |
Publisher | Valve |
Porting | Electronic Arts |
Released |
10 June 2010
20 December 2007
11 December 2007
all releases ▾
11 December 2007
25 October 2007
19 October 2007
18 October 2007
10 October 2007
9 October 2007
9 October 2007
|
Website |
Official |
Action Shooter |
Game features |
Multiplayer-only |
Perspective |
First-person |
Presentation |
3D |