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This location exists primarily within the Sonic Underground continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

The planet Mobius.

Mobius is the main setting of the Sonic Underground series. It is a planet inhabited by various sapient anthropomorphic animals, though they appear rather alien and are not always easily recognizable. The planet possesses a large aristocracy, while the vast majority of the population has over time become lower-classes who live in slums and squalor. Mobius itself appear to have two natural satellites orbiting it.

Mobius was originally ruled by Queen Aleena Hedgehog and her royal family, until the evil Dr. Robotnik took over by force. The aristocrats remain largely untouched by Robotnik's reign due to their wealth, while the lower-classes are fearful of being arrested at any time and roboticized. Standing up to the Robotnik Empire are the Resistance, led by Queen Aleena's children.

Main locations


Main political factions

Cities and territories




  • The name Mobius may be a reference to a shape known as the Möbius strip, a shape with no clear start or end that appears to have multiple sides, when in fact there is only one.

See also