Routine

[Nehvar]

http://routinegame.com/

Routine is a first person horror exploration game set on an abandoned Moon base. Your job is to find enough data to uncover the truth behind the strange disappearance of everyone stationed on the Lunar Research Station.

A non linear experience lets you explore any part of the fully open Moon base and find out secrets that other players may not!
Be immersed with Full body awareness, Deadzone aiming, no HUD, no health bars or points system... you must run, hide and survive the best you can against what lurks in the base.
There are no health packs or multiple lives, in Routine there is a Perma death system that will keep you on the edge!

It's pre-alpha so who knows when it'll be finished but it does look interesting.

[Kafein]

Is it like this ? http://slendergame.com/

[Necrorave]

I don't know what it is, but the sound of the speed that the creature running through the water made scared the shit out of me.