By console (this gen):
PS3:
Call of Duty 4: Modern Warfare
BioShock
The Elder Scrolls IV: Oblivion
Grand Theft Auto IV
Uncharted 2: Among Thieves
Fallout 3
Rock Band 2
Portal
Batman: Arkham Asylum
Metal Gear Solid 4
Team Fortress 2
Borderlands
Assassin’s Creed
LittleBigPlanet
Peggle
Braid
Call of Duty: Modern Warfare 2
Infamous
Wii:
Super Mario Galaxy
The Legend of Zelda: Twilight Princess
Xbox 360:
Call of Duty 4: Modern Warfare
BioShock
The Elder Scrolls IV: Oblivion
Grand Theft Auto IV
Mass Effect
Fallout 3
Rock Band 2
Portal
Batman: Arkham Asylum
Gears of War
Team Fortress 2
Borderlands
Call of Duty 2
Assassin’s Creed
Crackdown
Geometry Wars: Retro Evolved
Peggle
Braid
Call of Duty: Modern Warfare 2