I don't like the balance at all. 20m clown value upgrade gives you 18k while 20m soldier upgrade gives 107k.
The prestiege upgrades are fun but they don't really add any quality of life to the gameplay. I lamost feel how my pc will slow down from the amount of objects on the screen if i keep buying units that are not profitable and i can't get rid of.
After presiege you're better of just saving up for the knight and milk them with the thief and be done with the game.
Over all- cute game and works good, but does smell like it does not bring anything original in.