you should make skills that summon wolfs and skeletons permeant because they aren't even very strong you just have to wait 60 seconds after they die to summon again
you should make a multiplayer version of this game where you pick warrior archer mage or priest and level them up. also the enemys have way more health but i still owns them
can you make it so you can turn xp in to health or damage for your units after all upgrades are purchased so like 100 xp for 100 health and 100 xp for 10 damage so u can keep on upgrading your units after all the upgrades