Users who own this game also own:

Portal
Portal
Half-Life 2
Half-Life 2
Left 4 Dead 2
Left 4 Dead 2
Half-Life 2: Episode One
Half-Life 2: Episode One
Portal 2
Portal 2

Users who love this game also love:

Grand Theft Auto: San Andreas
Grand Theft Auto: San Andreas
Borderlands
Borderlands
Super Mario Galaxy
Super Mario Galaxy
Midnight Club 3: DUB Edition Remix
Midnight Club 3: DUB Edition Remix
Postal 2: Share the Pain
Postal 2: Share the Pain