I love this idea! But I will war. You-Nintendo actually has a patent on sanity bars - https://patents.google.com/patent/US6935954B2/en
The developed it for eternal darkness on the GameCube.
although other devs have worked around it
https://amp.reddit.com/r/gaming/comments/46auzd/eternal_darkness_nintendos_sanity_patent_and_how/
I just wanted to make sure you didn’t run afoul.
Psyched about your game though! And I love this idea.