At first I was afraid of the asteroids, but then I learned that they are my only friends in the vast nothingness of space.
This game is a vibe, man. Fantastic ambient music, cool retro visuals and minimalist ship designs, and fun sci-fi references. Awesome intro, too!
As was already mentioned, I can very much see this as a full release. Upgrades are the obvious go-to, but I would also just love to see more of the setting, characters and factions. I do love the fact that you're just a starhauler and can't fight back in the traditional way, so it would be very interesting to see how the game could evolve and become more complex later on while sticking to that aspect.
Anyway, great job, man!