Lol when did you see a walk-through? It's still in development, they're constantly adding new stuff.
EDIT: The only games I consider horror are the Silent Hill franchise. I still shiver even when I think about the name "Silent Hill". I only played The Room, mostly because after that I was 2 scared 3 play any of the others.
So alone... So helpless...
I also made
this trying to replicate some of that silent hill feel.