I think that it is a bit hard could you make it so that you don't always die at age 80
also, can you make it so you can get spirit stones or atleast make points the same as having stones.
Edit: could you maybe add NPC interactions?
There are plans for NPC interaction, but probably still a bit far in the future. The same with spirit stones, although that would probably come earlier.
The lifespan is hardcoded atm, but it will change in the future because that also, would become a resources (ex: you could burn your lifespan in exchange for various benefits such as, forbidden art).