Game seems to difficult. Some maps (without flying enemies) you get 4 mages to do the debuffs and make them specialists. Then you have Crit/Berserk Warriors doing all the damage. Still, you lose horribly. Game needs some tweaking.
Both badges are broken. I am shown as getting them in the chat sidebar, but I don't actually have the medium nor the hard badge. Also, the game is boring and repetative.
I don't think you need tower upgrades. Strategic placing of the +Range and +Damage buildings makes it more interesting, especially since their effects stack.
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