I really like the concept behind this game. With a bit more refining of each of the modes, I think this game has a lot of potential.
The game seems to have stopped at level 2. No more enemies spawned, and the level didn't advance even after waiting multiple cycles. If that's the end of the game, it would have been nice for there to be feedback for that in the game. As-is, I have no idea if there was some bug that prevented it from continuing or if I reached the end of the content.
The combat was simple, but satisfying enough. The management part of the game felt like the more difficult of the two. I can definitely see how there could be some strategy in how you deal with one mode can effect the other mode.