The mechanical town I don't remember the name of

[The mechanical town I don't remember the name of] is a ragtag ensemble of outcast engineers and similar mechanically-minded researchers that somewhat spontaneously formed when the notion of a giant, unclaimed hole in the ground began to spread throughout the underbelly of society.

Lowering into the city, one can witness technology and ingenuity said (by the inhabitants) to match that of the Citadel itself. While one may scoff at the notion, especially when presented with the sheer amount of raw metal and pointy bits its less-than-OSHA-approved construction presents, the Siblinghood itself often calls upon these technicians for help, considering their unwashed, oily and smelly prototypes consistently innovative and tremendously effective. 

Owning to its underground nature a slight majority of its population belongs to the ground-dwelling races, but its proposition of ruthless efficiency and pitiless meritocratic government proved a great attraction to specimens from all races and walks of life, making it one of the most consistently diverse cities within Naluund.