Sonicunderground Stories

Meet Serena The Hedgehog who is Sonic, Manic and Sonia's cousin while being the brains of the group. After being partly roboticized she uses her new skills to fight Robo...

This is kind of a rewrite for my sonic underground story. I'll possibly make the old version still be here. This is going to be a long one. Thanks guys!

this is the story of Sonic Sonia and manic father I am writing a Sonic fanfiction jet is the Son of a normal hedgehog mobian and a mysterious being which gave him a su...

Upon discovering his true origins, Sonic is tasked with finding his two siblings and overthrowing eggman and ending his dictatorship over robotropolis and restore Möbius...

An eccentric tale taking place about 5 years after the main events of the Sonic IDW verse, with some addons from the Archie Comics--after all, who doesn't like a multive...

silly lil image edits like pfps of splatoon and other interests i made 💞💞 if u wanna use any make sure they're free to use!!

There is a story that every subject in the kingdom Is taught when they are young. The story of the chaos child. A being that, at a young age, learned to harness the po...

This is my own version of Sonic Underground.

What if, Sonic's mother didn't leave him in the couples' home? What if, while escaping from the robots chasing them, she and Sonic fell into a mountain? What if, this ga...

it's a male reader with some of sonic's abilities. read if u want

A story about SonAmy

Mobious wasn't always plauged by the likes of the mad genius we know now as Eggman. It was once beutiful and ruled by the wisest there was, however this story is not to...

Dr. Eggman has found an ancient generator that has the power to freeze the entire universe. Sonic reunites with his siblings Sonia and Manic to stop the doctor. Can they...

y/n and her two best friends, m/b/f and f/b/f, are having another of their usual all night long anime binge-a-thons, when they are suddenly sucked into the floor by a my...

this story is based on the sonic boom and underground universes it includes the next ships: sonamy, creamails, knuckuge, silvase, manicks(manic x sticks) and shadonia(sh...

Hello! This is a complete reboot/rewrite of the show Sonic Underground Please read the whole desc! Will personalities, backstories, and story be changed? Yes. Absolutely...

AU! Elements of the games, Archie Comics, SatAM, Underground, OVA, and Sonic X Anime apply into one different universe. The villainous Dr. J. Ivo "Eggman" Rob...

Several people have made fanart of my stories, and it would be a crime not to show them the appreciation they deserve. Thank you so much, guys! And if anyone else has m...

Sonic catches the attention of the most dangerous man in the world. What will he do now? This shitty fan fiction is inspired by my PPA au (Post Post Apocalypse). It's b...

Sonic transferred to this new school and there she met a lot of people with different personalities, some similar. And the boys, never left her alone. There she made fri...