Left 4 Dead 2
18.7 hrs last two weeks / 18.7 hrs on record
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Call of Duty: Modern Warfare 2 - Multiplayer
7.7 hrs last two weeks / 118.8 hrs on record
Counter-Strike: Source
0.4 hrs last two weeks / 228.6 hrs on record
Team Fortress 2
0.2 hrs last two weeks / 14.5 hrs on record
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Call of Duty: Modern Warfare 2
5.8 hrs on record
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Day of Defeat: Source
8.7 hrs on record
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Garry's Mod
15.1 hrs on record
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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
Killing Floor
16 hrs on record
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Killing Floor Mod: Defence Alliance 2
Killing Floor SDK
Left 4 Dead
20 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
