Left 4 Dead
17.6 hrs last two weeks / 493.3 hrs on record
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Half-Life 2
1.3 hrs last two weeks / 9.9 hrs on record
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
38.6 hrs on record
Counter-Strike: Source
Day of Defeat
Deathmatch Classic
Half-Life 2: Deathmatch
2 hrs on record
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Half-Life: Source
Half-Life Deathmatch: Source
Left 4 Dead Authoring Tools
Portal
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Ricochet
Source SDK
0.1 hrs on record
Team Fortress 2
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