Left 4 Dead 2
1.5 hrs last two weeks / 20.1 hrs on record
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Team Fortress 2
0.7 hrs last two weeks / 34.4 hrs on record
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Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
1.2 hrs on record
Counter-Strike: Source
0.7 hrs on record
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
Grand Theft Auto IV
Half-Life
Half-Life 2
Half-Life 2: Deathmatch
1.7 hrs on record
Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Half-Life: Source
Half-Life Deathmatch: Source
Left 4 Dead
59.7 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
4.8 hrs on record
Left 4 Dead Authoring Tools
Ricochet
Source SDK
