Users who own this game also own:

Left 4 Dead 2
Left 4 Dead 2
Half-Life 2
Half-Life 2
BioShock
BioShock
Portal
Portal
BioShock 2
BioShock 2

Users who love this game also love:

Super Mario World
Super Mario World
Quake
Quake
The Elder Scrolls V: Skyrim
The Elder Scrolls V: Skyrim
The Legend of Zelda: A Link to the Past
The Legend of Zelda: A Link to the Past
Super Smash Bros. Brawl
Super Smash Bros. Brawl