Thank you for the feedback!
My idea for the theme was along the lines of having the curse be a supernova or black hole that is creeping up on the asteroid from behind. And you would need to build engines on the asteroid that you need to fuel with energy and materials to go fast enough so you can keep escaping it :)
Was probably abit too ambigous for a gamejam, but I want to revisit the idea of an asteroid builder game later for sure!
I also thought of maybe being able to build inside of the asteroid once you mined it empty and also hook up other passing by asteroids to the main one to mine other resources. But that was all beyond scope :D