Left 4 Dead 2
34.5 hrs last two weeks / 48.7 hrs on record
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Left 4 Dead
17.6 hrs last two weeks / 642.9 hrs on record
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Call of Duty: World at War
0.8 hrs last two weeks / 14.8 hrs on record
7 Wonders: The Treasures of Seven
16.2 hrs on record
Counter-Strike: Source
2.5 hrs on record
Half-Life 2
6 hrs on record
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Left 4 Dead 2 Add-on Support
Left 4 Dead 2 Authoring Tools
Left 4 Dead 2 Demo
7.6 hrs on record
Left 4 Dead Authoring Tools
Portal
3.4 hrs on record
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Source SDK
Team Fortress 2
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