>>417488673
if you're looking specifically horrors - i would give 2 reccomendations.
More of a classic horror/escape game would be The Smile Room by ItsCripsy, get to abandoned buidings and undergrounds hearing that every second someone, or something, crawls right behind the wall, try to escape and survive and remember - don't lose your flashlight.
On the other hand, if previous map scares you in more usual sense, being that loud sounds or Chthoni creatures, second map i will present - Blue Lick Road GOTY Director's CutBy Kadachii. This one isn't horror in a usual sense, but if you dare step in there.... Well, nothing bad will happen, right from the start. Walking around on seemengly normal 3d scanned rooms you will start noticing all those details that don't add up, rooms making an infinite labyrinth with no seams, you might get that primal feeling of something being wrong all around you, and walls pressuring you more and more. Piece of advice - Don't lose your friends from your sight here.