Left 4 Dead 2
11.9 hrs last two weeks / 40.3 hrs on record
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Osmos
2.5 hrs last two weeks / 2.5 hrs on record
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Warhammer® 40,000™: Dawn of War® II
1.1 hrs last two weeks / 24.3 hrs on record
Counter-Strike
Day of Defeat
Deathmatch Classic
Half-Life
Half-Life: Blue Shift
Half-Life: Opposing Force
Killing Floor
146 hrs on record
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Killing Floor Mod: Defence Alliance 2
Killing Floor SDK
Left 4 Dead
85.5 hrs on record
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Left 4 Dead Authoring Tools
Ricochet
Source SDK
