Users Playing this game are also playing:

Team Fortress 2
Team Fortress 2
Left 4 Dead
Left 4 Dead
Left 4 Dead 2
Left 4 Dead 2
Super Smash Bros. Brawl
Super Smash Bros. Brawl
BioShock
BioShock

Users who own this game also own:

Portal
Portal
Half-Life 2
Half-Life 2
Counter-Strike: Global Offensive
Counter-Strike: Global Offensive
Portal 2
Portal 2
Counter-Strike
Counter-Strike

Users who love this game also love:

The Elder Scrolls V: Skyrim
The Elder Scrolls V: Skyrim
Half-Life
Half-Life
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Garry's Mod
Minecraft
Minecraft
Half-Life 2: Episode One
Half-Life 2: Episode One