@kara@witchcraft.cafe I wouldn't even call Tarkovsky's Stalker horror, tbh. That said, it's a lot harder to build mysterious dread in a game without providing actual horror elements: it's hard for mystery to survive contact with the player doing dumb shit to see what happens, and facing no consequence.
I only played through it once yeeears ago, but from memory Penumbra: Overture did this quite well