So, turns out I’m definitely getting something done this time. I’m pretty far now, and am pretty happy with where it’s heading.

Please ignore the horrible placeholder coloured squares and 2-second hand-drawn icons.

The basic concept is you play as a race of people living on an asteroid belt. While you manage to survive, the lack of natural resources and the small asteroids make for poor living conditions. You look towards a habitable planet in your solar system, where you can settle.
Your aim is to build a spaceship and fly there, however, to be successful you will need to build your spaceship from resources scattered across asteroids, clear a path through the asteroids for it, and aim it correctly.
Asteroids contain a number of resources. Your home planet contains no resources, as they have been consumed by past generations of your people. All that remains is the rocket pad you have built. Other asteroids contain a variety of resources.