100
Portal: Companion Collection
95
Portal: Still Alive
92
Half-Life: Alyx
92
Portal 2
90
Dota 2
90
Counter-Strike: Source
90
The Orange Box
88
Left 4 Dead 2
86
Half-Life 2: Episode One
85
Day of Defeat: Source
84
Left 4 Dead
82
Artifact
81
Counter-Strike: Global Offensive
80
Half-Life
80
Portal
80
Team Fortress 2
79
Half-Life 2
70
Day of Defeat
70
Counter-Strike
70
Half-Life 2: Episode Two
66
Counter-Strike: Condition Zero
60
Alien Swarm
60
Left 4 Dead 2: The Sacrifice
Aperture Desk Job