I liked the reverse on the common tower defense trope! It was a fun cost-analysis game where you had to make sure you had enough resources for each lane. If you wanted to make the gameplay more strategic you could have the chests tell you how much is in them so you can see which lane you should go for. Also a reset button would be nice, since I couldn't find one and accidentally went to main menu. Unfortunately the difficulty ramped up like crazy at level 4 and I couldn't beat it. Overall really good game!