Interesting game, I don't think it exactly fits the survivors-like genre, but it's not a problem at all.
It's really interesting to use orbiting asteroids as weapons! In practice it was a bit hard to aim, but that must just be a skill problem ^^'
It took me some time to adapt to the controls, I played with the mouse and it felt like rmb/lmb inputs should be swapped, having the utility on the left button and the attack on the right button did not feel confortable for me.
It took me some time to discover that there was an input to press to open the shop. It would be good to have it highlighted to make it more obvious, maybe after catching the first asteroid?
I listed only the negative points, but the game is overall pretty enjoyable, well done!