Thanks for the offer, but I'm no longer developing the game and I'm happy with it in its current state. Also I deliberately made it simple because I thought that would be most artistically effective, so I think pixel art and features like ship building and ship upgrades would have muddied the premise.
If you want to play a larger, more complicated game with more scenarios where you can do things like upgrade your ship, you should check out this game's spiritual successor: https://johnayliff.itch.io/beyond-the-chiron-gate