If you have not heard of or played this game yet, you should try it. Amnesia, The Dark Descent. It's not physically released in the US until mid February, but you can get it on Steam for $19.99 http://store.steampowered.com/app/57300/ <-- you've gotta watch the trailer.
So far I've finished it with 2 slightly different endings. There's at least one more if I had done something differently.
It's first person puzzle/horror game is how I would describe it. But was quite entertaining and scary. Probably 20 to 30 hours to finish.