Left 4 Dead 2
3.8 hrs last two weeks / 25.6 hrs on record
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Half-Life 2: Deathmatch
3.2 hrs last two weeks / 134.1 hrs on record
Counter-Strike: Source
23.7 hrs on record
Day of Defeat: Source
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Half-Life 2
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Half-Life Deathmatch: Source
Killing Floor
15.2 hrs on record
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Killing Floor Mod: Defence Alliance 2
Killing Floor SDK
Left 4 Dead
150.1 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
13.6 hrs on record
Left 4 Dead Authoring Tools
Portal
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Source SDK
Team Fortress 2
0.5 hrs on record
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