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Fanfic / Cosmic Collapse

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Cosmic Collapse is a Crisis Crossover Fanfic written by The_Reinhardt.

It is a crossover series between Video Game Sonic Universe and Archie Sonic Universe

Following the events of Forces, the worlds of Beryllia (games canon) and Mobius (pre-reboot Archie) collide. Sonic the Hedgehog, Sally Acorn, and a wide cast of supporting characters are left to pick up the pieces.

Cosmic Collapse can be found at

A03 Link - [1]


This series is spread across multiple books

Quantum Satis is Book 1 of the Series

Cosmic Collapse contains examples of the following tropes:

    open/close all folders 
    Quantum Satis 

  • Action Girl: Nearly every major female character classifies as this.
  • Alternate Universe: Mobius Prime, the planet that Sally and her friends come from is shown to be from a completely different dimension than Beryllia.
  • Apocalypse How:
    • Both Planet Mobius and Planet Moebius went through a Class X apocalypse due to an unknown event. Which lead to the inhabitants of both planets being sent to Beryllia via falling to the planet from space.
  • * The Big Race: The Extreme Gear Racing Competition on Earth
  • Dream Land: Infinite creates a illusionary world trapping hundreds of people inside of their dreams.
  • Floating Continent: Angel Island
  • Ghost Invasion: An invasion of what seems to be deadly phantoms has attacked several cities. Causing the civilians of Beryllia to be paranoid and on high alert
  • La Résistance: The Resistance, The Freedom Fighters
  • Mind-Control Device: Eggman Nega's camera allows Rouge to other people inside of cards. And then use those cards to mind control them.
  • The Multiverse: The multiverse is shown to be very large with Sally and her friends coming from the 13th Dimension while the planet she is currently on is in the 1st Dimension


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