nice farm game.
-would be nice if we could downgrade skill lvls by paying gold.
so we can fine tune the farm rate, with the wizard always able to target a tree.(for afk)
-when upgrade prices go up by 900% every lvl, then there are less choices to make. since the next upgrade will be the cheapest upgrade most of the time. so, less gameplay/game mechanics. (maybe a mix of both upgrades with steep price increases and upgrades with low price increases would be good).