You wake up in a castle remembering only your name, and that you're being chased by... something. Holy, holy crap. I played the free demo and nearly shit myself. If you're a fan of survival horror, check this one out. There aren't any weapons; all you have is a lantern. Being in the dark makes you go insane. Seeing monsters makes you go insane. You must hide in the dark to avoid being mauled to death. If I decide I'm man enough, I will purchase this one soon.
http://store.steampowered.com/app/57300/