Cogsville

Cogsville is a steampunk city that is much smaller than the City of Steel Heart but still retains independence from the legion. The city's quality of life is actually really high; they have restaurants, stores, pubs, and law enforcement run by steam-powered golems.

The city itself has a heavily engineered outer wall that protects the citizens inside by blasting enemies with giant auto turrets.

Cogsville is actually self-sustained — it's something they take great pride in. It's also the reason that Cogsville isn't a target for the legion (yet,) due to its disconnection from the outer world and its massive defenses.