Source SDK
45.6 hrs last two weeks / 544.7 hrs on record
Left 4 Dead 2
8.1 hrs last two weeks / 64 hrs on record
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Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
Half-Life
Half-Life 2
241.7 hrs on record
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
1.3 hrs on record
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Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Half-Life: Source
1 hrs on record
Half-Life Deathmatch: Source
Left 4 Dead
39 hrs on record
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Left 4 Dead 2 Add-on Support
Left 4 Dead 2 Authoring Tools
Left 4 Dead 2 Demo
12.6 hrs on record
Left 4 Dead Authoring Tools
Portal
2.4 hrs on record
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Ricochet
Team Fortress 2
34.4 hrs on record
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