I think my game Protospace it ready to see the light of day, been working on it for about 5 years as a solodev.

I Just figured out gravity assist orbital mechanics for people that want to stretch their fuel as far as possible. Nice curved trajectories and spirals.

I made this game for myself but I hope you dig the vibes.

https://store.steampowered.com/app/3864090/Protospace/