Have you tried this one ? https://apophenia-23.itch.io/guaishou
I did this horror game with a team of 5 during a 4 months ending jam from a formation we where at.
And, well, I am not very eager to do intense self promotion, but seen your post and thought it would be okay to share it here. Because I think we did pretty good ^^
I don't know tho, if it counts as hidden enough.
Enjoy !