woohoo! Had fun with this. Great execution too, free of any bugs from my playthrough. Loved the graphics style, and it was pretty understandable on how to play.
A couple notes on playthrough - I found that I could leave some of the mining aspect of the game on auto if I set a ton of space to be cleared randomly. I also really would have liked to see some different tower types (maybe that could also help with the mining aspect so players could prioritize different ores for different towers or something) since I really like the tower placement strategy aspect in TD type games.
Great submission!