abirdcall
(she/her)
It's not terribly difficult to present horrifying creatures, but it is difficult to get people to take horror seriously. It's a problem I've had attempting to run Ravenloft and CoC. There's no giant flesh-eating, mind-warping monster in front of their faces to truly terrorize them, it's just words and your attempt to describe the indescribable and it's difficult to describe the indescribable without making it sound silly. Like, have you ever looked at pictures of great old ones? It's more goofy than it is terrifying. Granted in person it would be terrifying. But as a picture or a description they're all well...pretty describable.
The first rule of horror is that the unseen monster is always scarier. People will imagine the worst.
The key to horror in RPGs is to slowly ratchet up the tension over the course of a session. The trick here is that it needs to be done fresh each session. If you go straight into it then the horror elements will come off as comical. The ever looming threat of what might be around the corner coupled with depleting resources and unclear advancements creates the tension. Horror games are about small victories which might just be survival.