what if a planet covered in uranium glass sand and the humanoids living on it can live forever because they don't age naturally as organisms but only as a function of radioactive damage
and the royalty are prime humanoids who never venture out and are kept in royal tunnels of concrete, but they have to fuck a lot and all the time to make new workers who have to work out in the uranium glass sand fields, and it's all about insane incest eugenics and insect colony like hierarchies
this is not Dune i swear