Chill game, the music was great, enjoyed playing-some notes/suggestions:
1. wasn't clear to me how you produce was made initially, you may want to do a brief tutorial on capturing critters and placing them in pens
2. If you want to expand this, I'd make more upgrades, and maybe make the cure only work for creatures you've already captured, this was you have a sold gameplay loop
3.Don't juice raccoons, make them them produce phosphorus
4. Maybe add geese and have them produce gold