Team Fortress 2
223.5 hrs last two weeks / 3325.5 hrs on record
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Source SDK
23.8 hrs last two weeks / 51.7 hrs on record
Left 4 Dead 2
2.3 hrs last two weeks / 13 hrs on record
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Half-Life 2
Half-Life 2: Episode One
Half-Life 2: Episode Two
5.7 hrs on record
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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
3.6 hrs on record
Portal
0.3 hrs on record
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