thank you! The mutations are chosen randomly so it’s not always guaranteed you will hit that rate at day 12. There are 3 choices and 6 stages before 0 second respawns so on average it should happen around day 18 but looks like you got it early.
I definitely considered adding a floor to the respawn rate before 0, but I also wanted the player to get overwhelmed so they can’t go on forever. There’s a lot of balance tuning I could do but I ran out of time so I stuck with the simple linear curves.
Thanks for the UI suggestions, that’s still something I’m weak at, and also ran out of time on optimizing. I’ll definitely try to fix these issues in an update!