Team Fortress 2
30.5 hrs last two weeks / 679.4 hrs on record
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Left 4 Dead 2
0.1 hrs last two weeks / 70.9 hrs on record
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Call of Duty
Call of Duty 2
Call of Duty 4: Modern Warfare
Call of Duty: United Offensive
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
Darkest Hour
Day of Defeat
Day of Defeat: Source
5.1 hrs on record
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Deathmatch Classic
Garry's Mod
2 hrs on record
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Half-Life
Half-Life 2
0.5 hrs on record
Half-Life 2: Deathmatch
Half-Life 2: Episode One
0.5 hrs on record
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Half-Life: Source
Half-Life Deathmatch: Source
Left 4 Dead
42.2 hrs on record
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Left 4 Dead 2 Add-on Support
Left 4 Dead 2 Authoring Tools
Left 4 Dead Authoring Tools
Mare Nostrum
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Mare Nostrum Dedicated Server
Overlord
16.4 hrs on record
Penumbra: Black Plague
Penumbra: Overture
0.7 hrs on record
Penumbra: Requiem
Portal
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Red Orchestra
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Ricochet
Source SDK
