Really fun, the core loop of collecting ships until you become a big space katamari of death is super satisfying. Pretty easy to become unstopably overpowered but I think that just adds more to the fun :D
Small problem I had was with controls, it became hard to fly in the right direction as the ship got bigger, perhaps giving the main ship a more distinct shape with an obvious "forward" and "rear" would help make it easier to orient yourself. Great work overall!