Source SDK
234.4 hrs last two weeks / 3161.5 hrs on record
Team Fortress 2
155.1 hrs last two weeks / 177.5 hrs on record
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Garry's Mod
51.9 hrs last two weeks / 1062.1 hrs on record
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Counter-Strike: Source
25.2 hrs last two weeks / 1170.3 hrs on record
Left 4 Dead
2 hrs last two weeks / 156.5 hrs on record
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Half-Life 2: Deathmatch
Half-Life 2: Episode One
4.3 hrs on record
Half-Life 2: Episode Two
1.2 hrs on record
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Half-Life 2: Lost Coast
Half-Life Deathmatch: Source
Left 4 Dead Authoring Tools
0.5 hrs on record
Portal
0.7 hrs on record
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