Promethean Concordat

The Promethean Concordat, often referred to as the Promethean Empire, was a technologically advanced civilisation that dominated a sizable portion of the Milky Way Galaxy several millennia prior to the events of the series. After a mechanical uprising by their own machine defense modules later known as the Synth Mainframe, the Promethean Concordat was believed to be rendered functionally extinct.

Megastructures
A multitude of ancient megastructures found across the galaxy are believed to be of Promethean in origin. Recorded megastructures of Promethean design include:


 * Planet-sized shipyard
 * Dyson Sphere
 * Orbital Stations
 * Nano-Containment Fields
 * Stasis Worlds
 * Dreadnought Foundries