Suggestion: Dark Sun RimWorld

[AcetheSuperVillain]

Dark Sun is a sort of post-apocalyptic D&D setting.  The gods have turned their back on the world.  Arcane magic is banned.  Metal is scarce.  Society has been enslaved by diabolical Sorcerer-Kings.  Nature has been blasted into a series of unforgiving deserts, scorched further by the ever looming Dark Sun. 

Could be fun for a RimWorld mod setting. 

The main interesting thing I think would be a world without metal.  Instead of silver, people under the Dark Sun trade ceramic beads or glass gems.  Instead of steel, their weapons are made from bone, obsidian and jade.  Perhaps an innovative off-worlder could introduce materials like plastic or carbon fiber. 

Your only steel and components will be whatever you carried with you from your escape pods and salvaged from ancient mechanoids.  Escape from this world will be impossible, your only hope is to survive. 

Savage races survive under the Dark Sun:
Mul - A sterile cross breed of dwarf and human, created to be slaves or gladiators.  In sci-fi, could be genetically altered humans
Thri-Kreen - An intelligent insectoid race with 4 arms, tough chitin and a venomous bite.  The can mix their venom with the zik-thok plant to create dasl crystal, from which their native gythka and chatchka weapons are crafted. 
Pterran - Pteradactyl-like reptilians who exist on the edges of society.
Half-Giant - The magically induced spawn of humans and giants.   In sci-fi, could be genetically altered humans. 

More info:
https://darksun.fandom.com/wiki/Athas
https://en.wikipedia.org/wiki/Dark_Sun
https://dnd-wiki.org/wiki/Canon:Dark_Sun
http://www.athas.org/