@Steve24833
Yeah but dark horror is difficult to do well with written words. In a film or game, you've got the visual of unrelenting darkness, with the viewer constantly on the edge of their seat searching the screen for any signs of activity.
In a book there's no way to replicate that. Okay, so it's dark. And anything the character sees, the reader's attention is immediately drawn towards. You can't have the "where is it, am I missing it, is it about to jump scare?" aspect.
Another thing rarely done well is monster creation/description: The story either crashes to a grinding halt while the author meticulously catalogs every anatomical feature of their creation; or the extent of description is "it looked like (insert video game character here) but with (added peculiarity)"
Come to think of it, that's not just monsters, that's pretty much how all sorts of description works.