Astrolopes for Vanilla Gravship Expanded
The idea is simple!
I was in the middle of a paleolithic-to-ultratech playthrough, when I had a fun idea that I could use a gravship in the medieval era to start up something of a pirate crew instead of a traditional kingdom, but then I realized that Mr. Potocki didn't add a way to farm astrofuel pre-electricity, so the ship wouldn't be able to run.
I obviously didn't take that sitting down; I want a gravship pirate crew, and there's no grav anchor nor biofuel refinery that can gatekeep it from me!
Because of the above dilemma, I took the obvious answer and decided to add astrolopes, a newcomer to gravtech-influenced rimworlds that produce astrofuel instead of chemfuel.
Astrolopes can be obtained from [b]exotic goods traders[/b] and [b]slavers[/b], allowing you to purchase them at any point you get the oppertunity.
You can also find them at a new tile mutator if you're using Vanilla Landmarks Expanded.