DreadOut Demo
It's a very scary game, to be honest. It has the elements of Silent Hill and Fatal Frame (which I never played) tied in. In this game you don't face any satanic cult or kill any virus-infected zombies, but instead you'll need to use your quick reflexes and your trusty smartphone to escape some Indonesian folklore creatures that will stop at nothing to scare you to death (literally, you die in this game by getting scared to death.) Although there are some skipped parts on this video I think it covered pretty much everything that the demo offers.
You can get the game here: http://store.steampowered.com/app/269790/
Disclaimer: I just got the cover art here and I don't claim making it. http://fc00.deviantart.net/fs71/i/2013/284/4/6/dreadout_by_ahoguu-d6q0n2h.png