Corp City States
The city states are one massive walled arcology that striclty controls and recycles all it’s resources including the human ones. Totalitarian to a degree unknown before everything is monitored often even one’s own thoughts. Citizens can be exiled for often minor infractions and it is a form of population control. Anyone who even thinks of committing a crime is a terrorist. Terrorists operate the shadow economy pedaling restricted information and wares. They also are the only citizens who have contact, albeit clandestine, with the the tribes beside rangers. Rangers rather than being exiled are often executed because they are the only citizens who have knowledge of the wastelands and the citystate. They could lead the tribes on a successful attack on a citystate. Rangers are very closely monitored but some have managed to escape.