Medean System

I know indeed what evil I intend to do, but stronger than all my afterthoughts is my fury, fury that brings upon mortals the greatest evils.
— Medea, Euripides

The Medean System is the gravitationally bound system of Medea and the objects that orbit it. The bodies that orbit Medea directly are two gas and ice giants and one terrestrial planet. Of the bodies that orbit Medea indirectly—the natural satellites—two are terrestrial planets, followed by a handful of dwarf planets and moons.

The Medean system formed about 5.3 billion years ago, making it somewhat young compared to other systems in the Elysian Star Cluster. It was settled by the Enodian Ascendancy in the aftermath of the Interstellar War, and has remained under its sole jurisdiction ever since. Medea's most significant planet is, by far, the class V world of Enodia, the home planet of the Ascendancy and the most technologically advanced planet in Elysium.


The Medean system was first discovered and catalogued in 67. Initially thought to be devoid of habitable planets, exploration ships eventually discovered the habitable moon of Enodia in 203. Directly under the control of what would become the Enodian Ascendancy, these reports were kept secret in preparation for the Interstellar War. In the aftermath of the war, MINERVA recalled its exploration ships to focus on its internal problems, leaving the Medean system at the hands of the Ascendancy unchallenged.

The Enodian Evacuation Fleet settled on Enodia in September 215, using the pre-established outposts to kickstart its growth. With its host gas giant and its moons and rings to exploit, the Ascendancy quickly rebound and became a powerful entity of its own remarkably fast. This is also partly due to the discovery of the Archean wrecks located in the Graveyard, providing the Ascendancy with an edge in AI development and energy distribution systems.

5.312 billion years
Total population
318 226 035 (382 est.)
Enodian Ascendancy
Known planets

Astronomical bodies



Thanatos is a class II planet and the closest planet from Medea. Its irradiated surface and extreme surface temperatures have made it unhospitable to human colonization efforts.

Enodia is a class V moon and the largest natural satellite orbiting the Nyx gas giant. Despite its relatively small size, its high concentration of heavy metals has allowed it to maintain its own biosphere and has made it a highly industrialized world. It has no natural satellites, but has its own rings that are most likely dust particles stolen from Nyx's own rings eons ago.



Charon is a barren class IV planet, orbiting Nyx, that is the only location in all of Elysium where Archean artifacts have been found. It has been colonized and is fiercely guarded by the imperial military as the second most strategic location after its capital.

Nyx is a gas giant and the first planet from Medea. It is orbited by both Enodia and Charon, as well as numerous, much smaller, natural satellites. It also has a moderate ring system primarily composed of small rocks and dust particles.


Circe is an ice giant and the second and farthest planet from Medea. Due to its position and its low strategical value compared to Nyx, it sits nearly untouched at the edge of the Medea system, hosting only a handful of monitoring outposts.

Cartography of the Nephilim System
2D representation of the Nephilim System and its major astronomical bodies

Cover image: by Stellaris


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