maybe being able to look at available upgrades depending on the category, like race, class, stat etc
also a tooltip to say what the difference in stats is as well for the race/class your picking
what if when you create things like plants, they will slowly create air themselves, or once you have so many animals/fish/humans they will (very slowly) breed
The good news is you can do that with the Tavern! The bad news is haven't properly explained that yet.