Garry's Mod
4.2 hrs last two weeks / 9.2 hrs on record
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Audiosurf
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Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
0.4 hrs on record
Counter-Strike: Source
1.1 hrs on record
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
Defcon
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
6.8 hrs on record
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Left 4 Dead Authoring Tools
Outrun2006 Coast 2 Coast
Portal
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Quake
Quake 3 Arena
Quake 3 Team Arena
Quake II
Quake II: Ground Zero
Quake II: The Reckoning
Quake Mission Pack 1: Scourge of Armagon
Quake Mission Pack 2: Dissolution of Eternity
Rag Doll Kung Fu
Ricochet
Source SDK
Team Fortress 2
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