Outworld was once a realm of 4 armed races ruled by dragon races. The notable races were Shokans, Kuatans, Dragons, Vampires and Centaurs. The Dragon King Onaga invaded the realms of Zaterra, Vaeternus, and Edenia. But after his mysterious death, the Edenian human races began to triumph in the new-made realm against other races. A Kingdom named Edenia was created whose purpose was to bring peace to the realm. The last king of Edenia was King Jerrod who married a monk called Sindel. They began to slaughter all the exterior races, erasing them from the existence. But the rule of Edenian Kings came to an end by the hald-god Shao Kahn and his army of combined races.