4 player Coop Horror Games

Cry of Fear.
It's a Half-Life 1 mod.

If you're playing a game with three other
people it probably isn't going to be scary.

Man, I don't know any co op horror games except Obscure on PS2, and that only did two players.

Amnesia. One person playing, 3 people coop laughing at you as you scream and cry in terror.

Left 4 Dead 2

I like Killing Floor, maybe try Alien swarm its free but its not so horror as it could be

Co-op and horror is an oxymoron.

Dead Space 3

I agree with Killing Floor, it's scarier than L4D2 and is 4 players.

Resident Evil Operation Raccoon City. But I heard it's not a good game.

killing floor

Scariest game ever made was System Shock 2, if you can find a copy. Even has a somewhat buggy coop patch.

wait for Aliens Colonial Marines it's with 4 player coop

killing floor

F.3.A.R had a 4 player F#CKING RUN mode. Mabybe try thay?

I don't know any scary ones, unfortunately....

Maybe Dead Space 2 Multiplayer ?

http://s-ze.ro/R8aUl4 But you will still have to wait a bit for it to come out. There is nothing as survival as Survivor Zero.