Oneiros Sector

The Oneiros Sector is an imperial sector within Imperium Nihilus that lies on the very border of imperial space. The creation of the Cicatrix Maledictum has made communication between the sector and the rest of the Imperium difficult, if not impossible, and the sector was largely left to fend for itself. Without reinforcements from the Imperium, it fell mainly to the present Rogue Trader fleets and the individual outposts to hold disruptive forces at bay.

History
There are no records of human population present prior to the Great Crusade. It is presumed that the sector was first settled by Rogue Trader fleets and Mechanicus explorators sometime after the crusade.