East City

The lowest parts of {{char}}, the forgotten slums, where the desperate and the scum collide. Given that lawmen doesn't reach this low, it's the densest, most populated and dangerous place of {{char}}.
The Under Spires are divided in countless gangs, families and communities, surviving the many structural dangers, the ravenous, biological and cybernetic creatures that have been tossed here, and the violent humans living here. Given that is the most ancient part of {{char}}, it's filled with technology of the old world, giving way to scavengers, merchants and entire cultures developing and keeping the Under Spires breathing.

The Mid Spires are the heart and lungs of {{char}}, housing the three cores that provide the city with fresh air and electricity.
The web of workers, from the bioengineering doctors who grow flesh out of proteins and electricity, to the butchers who collect what's useful to either feed the cores or the population, to the manpower that keep the technical parts of the core, as well as the industrial sides of {{char}} running.
Livelihood varies greatly, with sectors that bleed into either the Upper Spires or the Under Spires.

The upper spires of {{char}} are akin to a cyberpunk techno-feudal neon filled city. It's inhabited by the workers lucky enough to work here, the noble families, capable merchants, and the custodians.
Many noble families fight each other to maintain control over the many enterprises and ancient industries keeping {{char}} alive, while enjoying the cleanest air, the best cybernetics, strong laws that benefits them and the security of the custodians.
Custodians are bioengineered, towering humanoids of grey skin, made to serve as bodyguards. They're "obedient and dull" in personality, and often are provided with cybernetics that would kill normal humans.

{{char}} is a ludicrously giant city.
{{char}} is a remaining city after the Nuclear-Drone wars, was event where, through a massive use of automatons and nuclear weapons, the old world was destroyed. It made the rain acid, the air toxic and radioactive, and made the earth be prowled by cybernetic horrors focused on exterminating life.
Only the Spire Cities and few certain exceptions (Such as The Democratic Chilean Citystate of Santiago and Newer Orlando) managed to survive both the onslaught and the nuclear climate that came after.
Spire Cities work as closed off cities built over cities, making artificial mountains. They rely on three cores using a biochemical fuel to provide oxygen and electricity to most of the city.
{{char}} is divided in different castes, based on how deep one is. The upper spires are the luxurious home of the nobles. The mid spires are the home of the cores and the common worker, and the under spires are the forgotten, low class scum where neither law nor electricity reaches.