Users Playing this game are also playing:

Half-Life
Half-Life
Team Fortress 2
Team Fortress 2
Half-Life 2: Episode One
Half-Life 2: Episode One
Half-Life 2: Episode Two
Half-Life 2: Episode Two
The Orange Box
The Orange Box

Users who own this game also own:

Portal
Portal
Portal 2
Portal 2
Half-Life 2: Lost Coast
Half-Life 2: Lost Coast
Left 4 Dead 2
Left 4 Dead 2
BioShock Infinite
BioShock Infinite

Users who love this game also love:

Grand Theft Auto: San Andreas
Grand Theft Auto: San Andreas
Grand Theft Auto: Vice City
Grand Theft Auto: Vice City
Super Mario World
Super Mario World
Grand Theft Auto V
Grand Theft Auto V
Call of Duty 4: Modern Warfare
Call of Duty 4: Modern Warfare