Ultima Underworld II: Labyrinth of Worlds is a 1993 first-person role-playing video game developed by Looking Glass Technologies and published by Origin Systems. As the sequel to Ultima Underworld: The Stygian Abyss, the game is set in the Ultima fantasy universe. Players assume the role of the Avatar—the protagonist of the Ultima series—and adventure through multiple dimensions while seeking to prevent the evil Guardian from achieving world domination.