The Warworld located in the Cygnus system, was a satellite created by an alien race called the Warzoons. The Warzoons carved a path of death and destruction during their conquest of the universe. As their ultimate weapon, they built the special mobile satellite to house their laser-cannons and nuclear missiles. However, the entire Warzoon race mysteriously died. The last of the war chiefs was found dead at the satellite's controls by the Largas, an extremely peaceful alien race. The Largas did not destroy Warworld. They instead, reprogrammed the satellite's defenses, and created a special "sonic" crystal key which could unlock the protective planet. Perhaps the Largas preserved Warworld as a last-resort "Doomsday Weapon." But the Largas also died out over time. Before dying, the last Largas gave the key to the Martian race for safekeeping.
As Thaal Sinestro had reclaimed his corps with intent on making it the premiere intergalactic law enforcement organization throughout the galaxies. His cohort Arkillo kept a seedling remnant of the fear lanterns urban ally safe in hand, merging it with the artificial planetary crust of the false planetoid. Fusing the two as one whole entity.
After assimilating into the planet, Ranx under it's corps leaders orders shifted its orbit towards the center of the univers. Where the guardians home planet of Oa once stood, as a testament to the fear mongers authority.
- Warzoons (alien race and creators, deceased)
- Warworlders (denizens from other worlds)