I played the game and I thought it was rather fun! I haven't played many space sims but this seems to be a pretty good one. I enjoy the simple yet enjoyable mechanics of warping, shooting, and beating baddies to earn extra money. Definitely add more, like bosses and harder enemies, more planets to interact with and materials to experiment with. Games like yours have so much potential! 

Feel free to check my game out, it got a new update recently: https://wasabiiii.itch.io/grass-elemental-demo-demo

I remember your style, your games have always had this simplistic yet addictive quality to it, it's awesome. Keep it up!