Sarathos was an alien swamp planet with a very gaseous atmosphere. Sarathos was inhabited by Leviathans; the monstrous, and very aggressive scorpion-like beasts that lurk in the swamps. The average Leviathan's monstrous nature was matched only by the King Leviathan, a much larger and more dangerous Leviathan that resided in a combat arena built by the Vox construction team. Apparently, Sarathos is home sentient beings known as Sarathosian Swamp Jaggas.