Team Fortress 2
32.7 hrs last two weeks / 739.5 hrs on record
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Left 4 Dead 2
18.5 hrs last two weeks / 18.5 hrs on record
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Audiosurf
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BioShock
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
2.6 hrs on record
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
Half-Life
3.5 hrs on record
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
52 hrs on record
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Left 4 Dead 2 Add-on Support
Left 4 Dead 2 Authoring Tools
Left 4 Dead Authoring Tools
Portal
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Prey
Ricochet
Source SDK
Team Fortress Classic
161.3 hrs on record
Tom Clancy's Rainbow Six: Vegas 2
Unreal Gold
Unreal II: The Awakening
Unreal Tournament
Unreal Tournament 3 Black
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