Left 4 Dead 2
5.4 hrs last two weeks / 12.6 hrs on record
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Audiosurf
1.6 hrs last two weeks / 5.6 hrs on record
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Team Fortress 2
0.5 hrs last two weeks / 6.6 hrs on record
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Counter-Strike
Darkest Hour
Day of Defeat
Deathmatch Classic
Garry's Mod
10.4 hrs on record
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Half-Life
Half-Life 2
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
29.2 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
Medieval II: Total War
Mirror's Edge
Portal
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Red Orchestra
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Ricochet
Source SDK
