I found Dead Space pretty mundane in the scares department.

I've never been scared enough of anything that I screamed. But I am less than 2 hours into Amnesia: The Dark Descent. The last time I played it was about a year ago. I might have the nerve to go back to it shortly if only because I dislike that I've avoided it for a year.

I've met every horror movie and game I've ever encountered with nerves of steel and an unshakeable resolve (early Silent Hill games being the exception, but at least I beat them multiple times over), but play a couple of hours of Amnesia and I'm terrified. The worst part? With the exception of the water section, which anyone who's played it knows what I'm talking about, there have been no enemies. Literally nothing that could kill me has shown up. And after watching video of someone else playing through the game, there won't be any enemies for at least half an hour, maybe longer. I've never seen any media that managed to be so smurfing terrifying when you're in absolutely no danger at all.