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Auto Credit Based on lordvader0219's Procyon Ac

This volcanic moon experiences more frequent geologic activity than anywhere in the Sol system. Jupiter’s immense gravitational influence heats the interior of this world. Io orbits within the Van Allen radiation belt of its host planet. Any solar radiation that passes through Jupiter’s powerful magnetic field is accelerated and intensified around this moon’s orbit.

Io once served as a prison world for the inhabitants of Jupiter’s moons. Inmanes were assigned the dangerous task of collecting anti-matter that rained down along with the radiation. After the fall of the prevous regime, the inhabitants of Io setup their own government. However, because of the prevalence of mutations due to radiation, arranged marriages and genetic engineering were deemed mandatory to stabilize society.


  • Predecessor: Procyon Ac
  • Created On: iOS
  • Game Version:


  • Radius: 364 km
  • Sea Level: -100 m
  • Surface Gravity: 1.8 m/s
  • Rotational Period: 14h
  • Escape Velocity: 1.14 km/s
  • Mass: 3.57E+21kg


  • No Atmosphere


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