way too easy... I just upgraded the "get more coins from vikings" to max, then I upgraded towers and tower damage. No need to click when the towers can earn me over 150k by just idling. After I got those three upgrades, the game was a walk in the park.
a wee bit to easy to complete, nice idea, made me think a couple of times, a nice feat would be to force the player to complete certain things to complete it, Example: You must use pink 5 times or more, or you cant use blue etc
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