Ultima Underworld: The Stygian Abyss, 1992 video game developed by Blue Sky Productions
The Abyss | Seasons in the Abyss | God and the Abyss | Christ of the Abyss | Ultima Underworld: The Stygian Abyss | The Abyss (recording studio) | At the Abyss: An Insider's History of the Cold War |