Left 4 Dead 2
8.8 hrs last two weeks / 37.9 hrs on record
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Command and Conquer: Red Alert 3
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
5.8 hrs on record
Darkest Hour
Day of Defeat
Day of Defeat: Source
0.2 hrs on record
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Deathmatch Classic
Half-Life
Half-Life 2
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Half-Life: Source
Half-Life Deathmatch: Source
Left 4 Dead
8.5 hrs on record
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Left 4 Dead 2 Add-on Support
Left 4 Dead 2 Authoring Tools
Left 4 Dead 2 Demo
5.5 hrs on record
Left 4 Dead Authoring Tools
Mare Nostrum
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Mare Nostrum Dedicated Server
Portal
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Red Orchestra
0.8 hrs on record
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Ricochet
S.T.A.L.K.E.R.: Clear Sky
Sid Meier's Civilization IV
Sid Meier's Civilization IV: Beyond the Sword
Source SDK
Team Fortress 2
65.5 hrs on record
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Team Fortress Classic
The Ship
