Lost in Vivo is great. It’s all about claustrophobia and psychological horror. Plenty of secrets too!

Of games that aren’t pure survival horrors (as in, they aren’t shooters): NO-SKIN, Infra Arcana and House of Necrosis.

NO-SKIN is a very weird, moody turn-based roguelite focused on resource management and figuring out secret interactions. It leans heavily into psychological horror side of genre.

Infra Arcana is a mix of survival horror and traditional roguelike. It’s lovecraftian horror with weird cults and things from distant stars and all that vibe. Unlike everything else I recommended this game is BRUTAL!

House of Necrosis is a roguelike that takes ‘survival horror’ more literally: aesthetically, it’s pretty much just Resident Evil. Zombies, labs, evil plants, Jill… it’s much easier than IA too.