Team Fortress 2
60 hrs last two weeks / 964.8 hrs on record
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Left 4 Dead 2
3.9 hrs last two weeks / 17.6 hrs on record
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Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
0.5 hrs on record
Day of Defeat: Source
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Half-Life
0.3 hrs on record
Half-Life 2
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Left 4 Dead
5.1 hrs on record
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Left 4 Dead Authoring Tools
Portal
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Source SDK
