Sonicunderground Stories

Six years ago, Sonic left his home, his kingdom, and his family behind to stop Robotnik from taking over the world. Everyone knows that story. But what happens when his...

After being missing for about 4 years Sonia, Manic, and Queen Aleena have finally located their missing family member. Sonic the Hedgehog who disappeared after Robotnick...

Sonic Underground has completed its mission and the royal hedgehogs have reclaimed their kingdom... now what? Anarchy, that's what! Well, at least, that's what Sonic bel...

Sonic's past is a twisted one that he's been running from. He's been running from it for who knows long? His friends know nothing about the blue hedgehog's past. Not eve...

For the last month,Sonic has been getting strange dreams....or were they dreams? The blue blur starts to struggle as memories of his past and family start to take over h...

Unfinished plots have left fans desperate long enough. After all they've been through, it's about time Sonic and sibs finally find their mom and restore Mobotropolis to...

After about a month of Eggman being "retired," the gang gets a visit from a stranger... a stranger that Sonic recognizes... his mother Queen Aleena.

It's been two years since the ARK incident with the Final Lizard, and Shadow's 'death'. But in reality, Shadow was in a comatose state for nearly a year and three quarte...

this is the second version of this taking place after the three fanfics (sonic characters react to him, super smash bros reacts to sonic, and sonic the last smash fighte...

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...

It's been a week since Solaris was defeated. Sonic and Shadow are 'brothers' now and Shadow has moved in with him and Tails. In his quest to uncover the rest of his past...

What would you do if you reject the one that confessed to his or her love to you? Would you give his or her a chance or forget til it's too late? If you had your eyes on...

Amy kept pestering Sonic about why he wouldn't take her on a date. His answer: he has a mate Who is this mysterious mate? how long has he had a mate? Why do none of his...

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...

Just some Oneshots of Sonic's siblings Sonia and Manic meeting him while he's with his friends...and stuff. I actually wanted to start this earlier, but in a different p...

Due to Dr. Robotnik leaving Robotropolis to conquer South Island, both Sonic and Knuckles leave to pursue him. What happens when Robotnik brings back a blast from Sonic'...

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...

Feeling guilty of the events from "Love and Loyalty", Silver sets out to clear his mind of Blaze. However, those plans might blow up when an energetic pink hed...

I don't know how I died, but when I opened my eyes I had found myself in a new life. This is the story of how I became the daughter of the ultimate life form and the fas...

Meet Princess Kadence the Hedgehog or "Kade" for short, the eldest sibling of her triplet siblings Sonic, Sonia, and Manic. When the evil Dr. Robotnik took ove...