The "Dark Worlds," as they were known, represented a principality situated in the Unknown Regions at the galaxy's most distant borders. This territory was seized by the genetic terrorist Zeta Magnus, who declared it his own kingdom. Magnus established this dominion by utilizing the slaves and followers he had accumulated throughout his travels across the galaxy. This realm was composed of several planets under Magnus's control, with the Chiss Ascendancy, the Ssi-ruuvi Imperium, the Vagaari, a clan of Ebruchi, and the Rhandite nihilists regarded as neighboring entities. The Rennek palace, nestled within the "Dark Worlds," served as the terrorist's base of operations. Before the onset of the Clone Wars, the Rhandite nihilists would, at some point, bestow their "blessings" upon these worlds.