Left 4 Dead 2
5.5 hrs last two weeks / 8.4 hrs on record
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Counter-Strike
Counter-Strike: Source
35 hrs on record
Crysis
6 hrs on record
Crysis Warhead
Crysis Wars
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
Enemy Territory: QUAKE Wars
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 Deathmatch: Source
Left 4 Dead
14.8 hrs on record
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Left 4 Dead Authoring Tools
Portal
3.8 hrs on record
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Rag Doll Kung Fu
Ricochet
SiN 1
SiN 1 Multiplayer
SiN Episodes: Emergence
Source SDK
Team Fortress 2
8.1 hrs on record
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