Game is fun but looks like its on an early stage of development. You might wanna look at some things like giving the ability to reset skill points so the players can choose different strategies to invest them, or make some extra levels that are actually challenging after all achievements/levels/challenges are done cause I found it fairly easy and quick to finish the game. I did enjoy playing and I liked the concept of the game, it does have room for improvement though and that will make it even better!
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