Left 4 Dead 2
12 hrs last two weeks / 41 hrs on record
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Team Fortress 2
2.7 hrs last two weeks / 273.3 hrs on record
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Counter-Strike
Counter-Strike: Source
Crazy Machines 2
0.9 hrs on record
Day of Defeat
Deathmatch Classic
Half-Life
Half-Life 2
3.4 hrs on record
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
1.3 hrs on record
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Half-Life 2: Lost Coast
0.2 hrs on record
Half-Life: Blue Shift
Half-Life: Opposing Force
Half-Life: Source
0.2 hrs on record
Half-Life Deathmatch: Source
Left 4 Dead
684.3 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
Portal
0.5 hrs on record
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Ricochet
Source SDK
20.7 hrs on record
