It's a little difficult to get running as Google and Microsoft both thought it might've been a virus
The mechanics are difficult to understand. I think I get it, I managed to buy level 1 upgrades in the training menu but none of the tiles I placed seemed to affect much. The enemies would slowly drain HP and I couldn't figure out how to fight them.
Some of the art was alright and mechanically it seemed to function well, I just had difficulty understanding it.