Mobius

**Mobius** is a planet in the Tetra galaxy, notable for its immense number of supernatural and otherwise unexplainable phenomena.

## History

### Prehistory

Radiometric dating has proven difficult to perform due to the peculiar geology of the planet, leading to imprecise dating for the formation of Mobius. Two Celestial beings, referred to as Light Gaia and Dark Gaia, reside in Mobius' core, waking once every several million years.

### Early inhabitants

Mobius was seeded with Earth life early on by Celestials, including a small population of humans. However, said population was not to last in that form - the Xorda, a powerful alien race, felt antagonized by the humans, and unleashed their "Gene Bombs" - weapons meant to devolve species. While partially successful, the Gene Bombs had another effect, creating pits of primordial ooze within which DNA from various species mixed, resulting in the eventual creation of the Mobians.

### The Ancients

The first civilization on Mobius was an advanced alien race known only as the Ancients. Fleeing the destruction of their homeworld, settled on Mobius' Starfall Islands. With them, they brought the Chaos Emeralds. However, their world's destroyer, an entity known only as The End, followed them, and only by sealing it within one of their guardian "Titan" robots was the destruction of Mobius averted. However, their species still went extinct within a generation, their souls stored within stone "Koco".

### Echidna Civilization

4000 years before

The awakening of Perfect Chaos and Argus' imprisonment of the Nocturnus

The avian civilization retroactively referred to as "Babylonians"

### Human Arrival

Displaced in time and space by Chaos energy, a human colony ship

### Modern history

Robotnik Empire

Black Arms

## Geography and atmosphere

The planet was named after the world's unique geography, with circular, looping rock formations being commonplace. That is not the only distinctive geological feature, though - the soil often organizes itself into square shapes, most visibly in the Green Hills of South Island. These phenomena are believed to be an effect of the abundance of Chaos Energy on the planet, being host to the seven Chaos Emeralds and the Master Emerald. Another effect is the presence of numerous floating landmasses throughout the planet.

The planet's atmosphere is also much more expansive and dense than that of most Type I worlds, with respiration for most lifeforms still being easily performed at altitudes where it would be impossible on other planets.

## Ecology

At first glance, Mobius' biosphere bears great resemblance to that of Earth, and shares many of the same biota. However, Mobius' unique phenomena has resulted in mutations and other variations that make its life distinct, even discounting the Mobians themselves. Trees reaching several kilometers in height, like the Wroshyr of Kashyyyk are not uncommon in certain regions, and

## Government and politics

Nine nation-states

The Eggman Empire, United Federation, Mazuri, Chun-Nan, Spagonia, Apotos, Shamar, Adabat, and Holoska

## Culture and society

The

Following several wars, human and Mobian societies came to an unofficial agreement to retain policies of isolationism in relation to one another, referred to as the "two worlds" system by politicians, although individuals of either group or even small communities can be encountered in either of their respective territories.

## Trivia

In Universum Eodem, the Sonic series' planet is slightly more realistic than what's presented in the games. Not horrifyingly like in the original version of the Sonic film, but...different.

The literal interpretation of Takashi Iizuka's "two worlds" system is also ignored here, as it complicates more things than it fixes, instead using the official translation of his statements truly referring to "two societies".

The idea for Mobius having a more expansive atmosphere comes from this video: https://www.youtube.com/watch?v=WGYCDspt\_BE&list=WL&index=244&t=0s

Other elements and concepts are taken from the Chaos Chronicles series: https://chaos-chronicles.fandom.com/wiki/Mobius