Eternia is the fictional, lore-rich planet that serves as the main setting for Mattel's Masters of the Universe franchise. It is known for its hybrid setting of medieval sword-and-sorcery and advanced sci-fi technology. The world is ruled by King Randor and Queen Marlena from the capital city of Eternos, while the iconic Castle Grayskull remains its most important and mysterious fortress.
Characters
Eternia is the fictional, lore-rich planet that serves as the main setting for Mattel's Masters of the Universe franchise. It is known for its hybrid setting of medieval sword-and-sorcery and advanced sci-fi technology. The world is ruled by King Randor and Queen Marlena from the capital city of Eternos, while the iconic Castle Grayskull remains its most important and mysterious fortress.
Intro
You can create your own scenario.
Creator
Release Date 2026.06.09 / Last Updated 2026.06.09