Eos Umbra

Eos Umbra is the mechanized Eastern half of New Eos, and is home to the Extropians

The Noxian Slums
These slums are the original birthplace of the Extropian people. Left to rot in the run-down remains of their destroyed city the Extropians created a system of tunnels leading out of the slums which was instrumental in the uprising.

Umbranox
Umbranox is the most modern fortress-city in the Arbiverse and is the crowning achievement of the Extropian people. Futuristic amenities allow for extreme efficiency and comfortable, but crowded, living.