Amnesia the Dark Descent is horror/thriller game. The really cool aspect of this game is there are no weapons. You are completely defenseless. A lot of the game revolves around the use of light. Staying in the light keeps you sane, but attracts monsters. Staying in the dark will keep you hidden however your sanity will begin to drop and things will seem distorted. Witnessing unsettling events, such as doors blowing open, or looking directly at the monsters also drops your sanity.