My comments largely align with a couple of other people. I enjoyed the game quite a bit. The visual style is clean. I don't mind the autobattling roguelite elements or even the meta-progression. I think it makes for a fun little game.
Definitely struggles with performance after a certain number of turrets, where it was barely running a certain point on even early levels. Losing due to the enemies hitting the sun felt bad, especially at the later levels where you had most of your turrets set up properly to try to succeed. Levels 7-8 need some balancing. It felt like getting there was relatively easy, but then it just requires repeating multiple times to get past them. For initially coming into the game, it would be more clear on your turrets vs asteroids. Having different types of turrets (or turrets that could handle the opposite rotation of where your planet is) would be much appreciated.
Overall, I had a good time with it. Thanks for making it!