Woah! The current Bundle of Holding is full of amazing horror games!
DREAD - Build the suspense while trying to keep the tower from toppling! The central mechanic is pulls off a Jenga tower, if the tower falls on your pull, your character DIES! The longer the game goes, the riskier each move becomes. So tense!
Don't Rest Your Head - Your insomnia has kicked into high gear, and you have begun to see things. But they are real, right? The things that go away when you sleep? You fight to stay awake in order to fight the dark recesses of your mind. The bundle includes the DRYH supplement: Don't Lose Your Mind.
Kingdom of Nothing - Vagrants fighting horrors that the normals can't even see. Dark and tense, Kingdom of Nothing explores the world in the gaps between what we pass every day.
Murderous Ghosts - Vincent Baker's awesome two player game of Murderous Ghosts trying to kill an urban spelunker. A two player choose your own TERROR game with all the details left to the players. A deadly game of cat and mouse. Good luck, adventurer.
And the Bonus Games, if you pitch in more than the average:
Spookybeans - Spookybeans, the RPG of goth underground comics, lets you explore a morbidly funny comic-book world in the vein of the Addams Family and the like.
Demolished Ones - A Victorian noir, steampunk, Lovecraftian horror, murder-mystery, quest-for-identity, Fate-based adventure. I'm not very familiar with this one, but on that description alone, I'm in.
This is a great bundle at whatever price you decide to pitch in.