Users Playing this game are also playing:

Doom
Doom
Doom 3
Doom 3
The Ultimate Doom
The Ultimate Doom
Fallout 3
Fallout 3
Starcraft
Starcraft

Users who own this game also own:

Half-Life
Half-Life
Half-Life 2
Half-Life 2
Portal
Portal
Final Doom
Final Doom
Left 4 Dead 2
Left 4 Dead 2

Users who love this game also love:

Super Mario World
Super Mario World
Portal 2
Portal 2
Super Mario 64
Super Mario 64
GoldenEye 007
GoldenEye 007
Duke Nukem 3D
Duke Nukem 3D