Dragon Age: Origins, Infamous 1 and 2, Portal 1 and 2, Super Mario Galaxy 1 and 2, Bastion, Minecraft, Assassin's Creed 2 and Brotherhood, Xenoblade Chronicles, Fallout 3 and New Vegas, Journey, Bioshock, CoD 4 for pulling a Halo and changing the face of console shooting, Mass Effect, The Last Story, Saints Row 2, Batman: Arkham, Uncharted 2, Heavy Rain, LoZ: Twilight Princes (Skyword Sword gets in on high on the Zelda fans list), and Dark Souls, are about all I have, at the moment. There are plenty of others that would get a cult status, like Enslaved, but those are the titles that are easily the most important for me.