Left 4 Dead 2
22.1 hrs last two weeks / 78.8 hrs on record
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Counter-Strike: Source
1 hrs last two weeks / 142.6 hrs on record
Garry's Mod
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Half-Life 2
1.2 hrs on record
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Left 4 Dead
269 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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Source SDK
Team Fortress 2
19.8 hrs on record
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