Its been a long time since I've played this so Ive revisited it. I was wondering why the ominous, uncertain difficulty felt so familiar... and then I realised.. Have you ever heard of the game "Fear and Hunger"? Conceptually, I think you'd like it. :)
Anyway! The puzzles here were very unintuitive, but its years old and your newer work has vastly improved, so congrats on your growth! The horror elements are one of a kind, you are truly one of the people who can do it like this haha.