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Encuentros Inesperados by ameth18
Fandoms: Zootopia (2016), アグレッシブ烈子 | Aggressive Retsuko | Aggretsuko (Anime), Sonic X, ビースターズ | BEASTARS
13 Sep 2025
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Con la llegada de Nick, Judy, Jack y Finnick a Japón para unas vacaciones, se encontrarán con unas extrañas esmeraldas que harán que se encuentren con seres de un planeta diferente conocido como Mobius y en el proceso se encontrarán con un panda rojo que canta Death Metal.
Parejas Principales: Nick x Judy x Jack ( Wildehopps / Savagehopps / Wildehoppsavage ), Haida x Retsuko ( Haidsuko ), Ookami x Fenneko ( Ookanneko ), Sonic x Amy ( Sonamy ), Tails x Cosmo ( Tailsmo ), Knuckles x Tikal ( Knuxikal ).
Otras Parejas: Stu x Bonnie, Bogo x Clawhauser, Komiya x Tsunoda, Anai x Hakumi, Shadow x Rouge ( Shadouge ).
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Parejas de Ratchet & Clank: Alister x Ratchet.
Parejas de Star Fox: Falco x Fox, Peppy x Slippy.
Parejas de Happy Tree Friends: Disco Bear x Pop, Flippy x Flaky, Sneaky x Mouse Ka-Boom, Truffles x Lammy, Russell x Mime.
Parejas de Kaiketsu Zorori: Arthur x Elzie, Roger x Milly.
Parejas de Beastars: Legoshi x Jack, Collot x Voss, Durham x Miguno.Nota: Aunque esto es un crossover entre Zootopia, Aggretsuko y Sonic; van a aparecer como cameo personajes de Beastars, Star Fox, Kaiketsu Zorori, Happy Tree Friends y Ratchet & Clank a lo largo de la historia.
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Tails Harem 2: Silver Stars by super_tails
Fandoms: Sonic the Hedgehog - All Media Types
12 Sep 2025
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Summary
Tails got Cream pregnant, and Vanilla is pissed. Along with trying to figure out how he's going to be a father, he's also struggling to embrace his growing feelings for Silver. The rest of the harem are split on how to handle these sudden drastic shifts in their dynamic with Tails. If all that wasn't enough, some old acquaintances reappear in Tails' orbit. Everyone's favorite two-tailed fox is about to have his hands VERY full... how will he handle it?
Series
- Part 2 of The Tails Harem Saga
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Sonic Boom: The Monster Within by Jux_A_Vibe
Fandoms: Sonic Boom - Fandom, Sonic the Hedgehog - All Media Types, Sonic Boom (Cartoon)
11 Sep 2025
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Shadow the Hedgehog has arrived to the gangs home on the run from G.U.N, but rather then having a infamous, neck-and-neck rivalry with the blue blur, the Ultimate lifeform seeks Eggman for a favor. But why?
As the Black Comet slowly approaches Earth/Mobius, ready to cash in on a bargain made nearly 50 years ago, it is up to the rag tag Team Sonic and friends to stop a deadly alien invasion.
AU version and canon divergence, obviously. Expect sibling shenanigans and tomfoolery. Also, Maria is alive in this fanfic because Shadow deserves happiness dang it!
Enjoy!
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Forming a Family by ameth18
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (Archie Comic), Sonic Boom (Cartoon), Sonic the Hedgehog (IDW Comics), Sonic X, Sonic Underground, Adventures of Sonic the Hedgehog (Cartoon)
11 Sep 2025
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Cosmo's Log by 77Xfire
Fandoms: Sonic the Hedgehog - All Media Types, Sonic X (Cartoon 2003), Sonic the Hedgehog (IDW Comics)
11 Sep 2025
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After being given a second chance at life, Cosmo must now find her role in this new world that she now calls home... and who knows? Maybe she'll be able to sort out her feelings for a certain fox along the way. Companion Story to Tangle's Log Act 2
Series
- Part 3 of Tangle's Log
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Cosmic Heart Zone (Season 2) by NorthernVerve
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic X (Cartoon 2003)
10 Sep 2025
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Tails and Cosmo has returned to their universe after the events of Cosmic Rush. Dealing with the aftermath first by talking with Cosmo's mother about her father. Before they eventually begin to return to doing more TailsTube, and taking part in an upcoming racing competition to face off against friends, foes, and some wacky characters along the way.
Series
- Part 3 of Cosmic Heart Zone
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Welcome to the TailsTube Podcast, where I your host, Miles 'Tails' Prower, dive into the juicy details of my friends' love lives! We start with an interview to really get to know our guests and build up that suspense, then we jump right into the steamy action, followed by a short wrap-up where we chat about the experience. It's a nice, well-rounded show that's sure to keep you on the edge of your seats!
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In this Twilight, Our Choices Seal Our Fates by EmmaSmoke
Fandoms: Sonic the Hedgehog - All Media Types
08 Sep 2025
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Silver the Hedgehog has been fighting against the apocalypse for seven long years. Finally, he and the remaining mortals initiate Operation Argus to save as many lives as possible. Silver is the only one left behind to destroy everything that remains. But his success is short-lived when the darkness of the east—Mephiles—forces Silver to turn back time.
Back at eight years old before the apocalypse began, Silver endeavors to stop it from ever occurring in the first place. His first step is to kill Emperor Shadow of the Doom Empire, the one who unleashed Mephiles in the first place. Unfortunately, Silver isn't strong enough to kill Shadow, and he, in turn, can't kill Silver because he's... Shadow's blood?
It wasn't in Silver's plans to become an imperial prince, but he decides that he can use this. He'll stop the apocalypse, no matter what it takes.
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More tags (including relationship and character) will be added as they appear. Trigger warnings in each beginning note -
Sonic Writing Requests by Lovelytimesinagony
Fandoms: Sonic the Hedgehog - All Media Types
08 Sep 2025
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Have an idea for a Sonic fanfiction you want written? Feel free to leave it in the comments below!
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Sonic: Roses and Acorns 2-Mending the Heart by Masterob
Fandoms: Sonic the Hedgehog - All Media Types, Shenmue (Video Games), Virtua Fighter (Video Games), Jet Set Radio (Video Games), Spider-Man - All Media Types, Fantastic Four, My Little Pony Generation 4: Friendship Is Magic (Cartoon 2010)
06 Sep 2025
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The initial threat of Eggman has been neutralized. Right now, Mobotropolis intends to rebuild. But a gang war mixed with Eggman's potential return ruins that, plus threats of an off-world visit. Meanwhile Sonic and Sally work to patch up old differences, with Amy's help. More on Sonic's past with his friends too.
The big crossover continues within the MHA: Enter the Spider story.
Series
- Part 2 of Roses and Acorns
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Two of Hearts by ratjamtime1EndRacismintheOTW1
Fandoms: Sonic the Hedgehog - All Media Types
05 Sep 2025
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Sonic Star, a famous outlaw known for his gun-slinging, has taken in a young fox kit named Tails Prower. The young kit has immense power and potential for a strange form of magic but little control. Out of concern for the kit, Sonic approaches an… old friend, the Shadow of the Desert Waste, to ask if he’d be willing to tutor Tails, as he possesses similar abilities. While the Shadow is initially resistant, he feels as if he owes Sonic and agrees. So begins Tails’ apprenticeship under the Shadow, an arrangement neither are entirely onboard with but agree to regardless. However, Tails soon learns there is more to his teacher and about his adopted brother…
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And Then There Were Fewer by SakuraDiva
Fandoms: Sonic the Hedgehog - All Media Types, Dangan Ronpa - All Media Types
04 Sep 2025
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Sonic was sixteen, and a newly enrolled Ultimate at Green Hills Academy. What was supposed to be a winning point of his life, could only be described as a complete nightmare.
Or
Fifteen students are placed in a school, where the rules are to kill or be killed. Chances of surviving in peace are futile, and Sonic has only one objective; survive.
❗️Temporary Hiatus❗️
Please check the update I've added to the latest note for more info.UPDATE; As this fic is now old, I have much more writing experience and wish to rewrite this fic as a whole to make it much better and to finally finish it. Please check the latest note for more info.
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Rouge is now on Eggman's side but ends up killing Sonic, Storm, and 14 other people
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The Fox and the Seedrian: Frontiers by milesprower06
Fandoms: Sonic X, Sonic the Hedgehog - All Media Types
04 Sep 2025
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Sequel to The Fox and the Seedrian: Homecoming. As Mobius continues into the era of peace that began after Eggman's defeat, Sonic and Tails each celebrate their tenth anniversaries with the loves of their lives. But as time moves inexorably onward, adults and children alike grow older, bringing new struggles and adventures. Contains Taismo and Sonamy.
Series
- Part 3 of The Fox and the Seedrian
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After returning from saving the universe from the Metarex, Tangle hopes to have a normal life... at least, as normal as a stretchy tailed lemur who was trained to be a hero by Sonic the Hedgehog himself could have while saving the world every so often! Sequel to Tangle's Log Act 1, Chapter 1 is a recap of Act 1 for those who want to skip it
Series
- Part 2 of Tangle's Log
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Mobius 31 Años Después by ameth18
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (Archie Comic), Sonic Underground, Sonic X, Sonic the Hedgehog (IDW Comics)
30 Aug 2025
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Tras haber perdido a sus familias en una tragedia ocurrida en el Castillo de Mobius; el Rey Sonic, Tails, Knuckles, Vector y Espio tratarán de seguir con sus vidas sin saber que encontrarán de nuevo el amor.
Este es un fanfic que comencé a escribir en 2013 y publiqué en otros sitios web, pero viendo que ya había escrito fanfics aquí, decidí publicarlo aquí también. Este fic es una secuela de Mobius 25 Years Later y Mobius 30 Years Later.
Sonamy, Tailsmo, Knuxikal, Vectnilla, Espionia, Chaream and Shadouge.
Este fic se desarrolla en el universo Light Mobius de Archie Comics (Pre-SGW), por lo que hay personajes de videojuegos, SaTAM y Archie Comics, pero también aparecen personajes de Sonic Underground y Sonic X. No hay personajes de AoSTH, Fleetway o Sonic Boom presentes aquí.
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The Midnight Rose by HiddenGem98
Fandoms: Sonic the Hedgehog - All Media Types, Sonic Underground
30 Aug 2025
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22 years after Sonic defeated the time eater he's settles down into a quiet life with Amy, but when their 18 year old daughter gets taken by Eggman right from their Green Hills back yard one of his biggest secrets gets revealed. And now Shadow is set to be his son in law? Surely that will go well.
Series
- Part 1 of The Midnight Rose
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Tails has a secret that will change relationships and test the bonds forged in the fires of war and survival.
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Cosmic Heart Zone: Xtra Miles by NorthernVerve
Fandoms: Sonic X (Cartoon 2003), Sonic the Hedgehog - All Media Types
28 Aug 2025
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Thanks to the Sol Emeralds power, Cosmo the Seedrian (from the Sonic X Universe) is brought back faster then she would have otherwise been during the events of Cosmic Rush. Now Cosmo can begin to adjust to living a (Mostly, giving Eggman's constant rivalry with Sonic) peaceful life on Sonic's planet. Including picking up an idea from the other Cosmo and Tails they had met. Starting their own spinoff of their TailsTube-style show called Xtra Miles. Answering questions and going about their days like an online vlog of their renewed relationship after Cosmo's miraculous return.
Series
- Part 4 of Cosmic Heart Zone
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An ongoing collection of short stories based on songs. (Relationships & Friendships)