This game has the atmosphere of something that was not supposed to be in this world. Every aspect of the game comes together to make the entire game feel fundamentally wrong and it's one of the creepiest games I've ever played as a result. "You are being stalked by a monster" is a fun feeling in a horror game, but this one instead nails the vibe of an actual nightmare. Not the kind where you're getting chased by a giant spider, but those visceral nightmares where your mind just activates all your fear responses to things that your waking self can't even figure out.