>>50195817
Every area has 15+ or so blueprints you can unlock and you need a bunch of wood+forest+stone to build it, you get buildings that can increase scaling per level so you get +2 to a stat per level and there's others that just increase it outright from the start up to +5
For example the leadership skill gives +1 baby ball everyime its upgraded and you can get it up to +5, Pekora just putting a bunch of farms and stuff everywhere