1. Amnesia: The Dark Descent
It's another survival horror game! Because we really don't have enough of those already. But wait: It's the scariest survival horror game you'll ever play.
Imagine playing in a creepy German castle inhabited by... something, and your only weapons are your wits. No, really, the game hands out tinderboxes and candles in lieu of guns, crowbars or chainsaws. Play with the lights on, and keep the Valium handy.