Bioshock
Counter-Strike
Counter-Strike: Source
2.6 hrs on record
Day of Defeat
Deathmatch Classic
Half-Life
Half-Life 2
Half-Life 2: Deathmatch
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
Half-Life Deathmatch: Source
Left 4 Dead
177.3 hrs on record
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Left 4 Dead Authoring Tools
Mass Effect
33.2 hrs on record
Portal
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Ricochet
0.1 hrs on record
Source SDK
Team Fortress 2
5.3 hrs on record
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Team Fortress Classic
World of Goo
12.5 hrs on record
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