1 - 20 of 876 Works in Sonic X (Cartoon 2003)
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Trust and Terror by Anonymous
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comics), Sonic X (Cartoon 2003)
14 Dec 2025
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Summary
A mission to destroy the shrink gun used to subdue Sonic goes awry, and Shadow is thrust into a vulnerable position. Can he put aside his own pride and trust issues to rely on others?
And when complications arise, can he hold out under pressure?
Series
- Part 2 of A Test of Trust
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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)
13 Dec 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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Sonic the Hedgehog: Rising Winds by Darktaku421
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comics), Sonic X (Cartoon 2003), Sonic the Hedgehog (Live Action Universe)
13 Dec 2025
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The Year is 2004. Almost a century, humans and Mobians came together to create a unified world. Chaos Energy powers the world, science and technology are centuries ahead of what was once thought person. Life is good for young Sonic the Hedgehog and his loved ones. Until a powerful inventor and businessman named Ivo Robotnik begins plotting to acquire the continent of Mobius and establish a monopoly on Chaos Energy and to subjugate the Mobians for cheap labor. A back and forth struggle between Freedom and Dominance that will push both men to limits they never would have imagined possible. Who will prevail?
Series
- Part 1 of The Mobius Sagas
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All The Help We Can Get by Bright_Rose
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comics), Sonic X (Cartoon 2003), Sonic the Hedgehog (Live Action Universe), Super Mario & Related Fandoms, Mario & Luigi Series (Video Games)
13 Dec 2025
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"Will you join the Freedom Fighters?"
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Sonic AU 2025 by Poster16
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic X (Cartoon 2003), Sonic the Hedgehog (Live Action Universe)
11 Dec 2025
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Summary
A collection of oneshots taking place in seven different AUs. Tags will reflect each one. List of prompts is here: https://www.tumblr.com/sonic-au-august/790056826947420160/say-hello-to-the-2025-sonic-au-august-prompt-list?source=share
AUs are (in no particular order in posting):
1) Time's Promise
2) Elysium
3) Modern Racing (Starts with Crossworlds)
4) Tír na nÓg with hints of Hades and Persephone
5) Creation (What if Sonic was born on the ARK?)
6) Bakers (Arthurlot)
7) Movie AU (Shadow gets taken in by the Wachowskis) -
Mobius by Millie_Kalypso
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comics), Sonic the Hedgehog (Live Action Universe), Sonic Underground, Sonic Boom (Cartoon), Sonic X (Cartoon 2003)
10 Dec 2025
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Summary
How Sonic’s World Came To Be.
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Sonic The Hedgehog SatAM Re-Genesis 05x10 -- "THE ASCENDANCY OF THE AVATAR" (Series Finale) by EricEmmanuel
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog: The Animated Series, Sonic the Hedgehog (Archie Comics), Knuckles the Echidna (Archie Comics), Sonic Underground, Sonic X (Cartoon 2003), Sonic SatAM
10 Dec 2025
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Summary
The epic finale! Our heroes are forced to confront the legacy of Echin-Dor and Knuckles' heritage as Knorax-Zur head on as Dimitri returns.
Series
- Part 49 of Sonic The Hedgehog SatAM Re-Genesis
- Part 10 of CODA: THE FINAL ACTS
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Starting Small (Arc 1) by SlinkyDragonThing
Fandoms: Dandy's World (Roblox), Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (IDW Comics), Sonic Boom (Cartoon), Sonic X (Cartoon 2003)
08 Dec 2025
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Summary
Tails just may have made the biggest mistake of his life.
The abandoned Eggman machine he brought into his lab was the oddest thing he had ever encountered, though nothing compared to Doctor’s other big flops, like his huge robot cow or trying to take over the world through stinky cheese. So of course, he was far from prepared for what it did; ripping a hole in time and space.
And who would come out of the hole it created.Toodles had walked upon the rip in time and space by chance.
She was boooored out of her mind! Though venturing deeper into the abandoned floors while hiding from monsters was exciting somewhat, she wanted something new. Too bad exploring outside the center was basically illegal (which is pretty unfair btw) and no one understood her urge to leave a place so “safe.” So when she just so happens to be in the right place at the right time to see a portal open right in front of her from her wanderings around the center, what does she do?
She goes in to explore of course.So what happens when they inevitably cross? Well, I’d be more than happy to tell you how.
Worlds Explored In This Arc (So far): Sonic The Hedgehog, Dandy’s World
Series
- Part 1 of Toodles N’ Tails Crossover Adventures!
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Cruel Hedgehog Thesis by SonicFan2700
Fandoms: Sonic X (Cartoon 2003), Sonic the Hedgehog - All Media Types, Neon Genesis Evangelion
07 Dec 2025
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Summary
During one of Sonic the Hedgehog’s encounters with the Doctor Eggman, Sonic, his friends and Eggman are caught in Chaos Control sending them to a new world. Now Sonic and his friends must team up with some very depressed teenagers and a government organization that is holding secrets to help fight against a new threat for both Sonic and this world, The Angels. Not to mention that Doctor Eggman has also arrived in this strange world and plans to take it over. Surely nothing bad will happen…right?
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Sonic: Chaos Rising by andochristo
Fandoms: Sonic the Hedgehog (Live Action Universe), Sonic the Hedgehog - All Media Types, Sonic X (Cartoon 2003), Sonic Boom (Cartoon)
06 Dec 2025
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Summary
Six months after the fall of the Eclipse Cannon and the arrival of Amy, Sonic and his friends have finally begun to find their footing. The Chaos Emeralds remain scattered across the globe, each pulse of energy hinting at danger and mystery, save for the one that Team Sonic managed to secure.
As they track the remaining Emeralds, strange allies and rivals emerge from unexpected places, each carrying their own motives, secrets, and connections to worlds beyond their own. Shadows of Sonic’s past on Mobius begin to stir, and the threads of a deeper mythos surrounding Shadow begin to unravel, pulling the team toward a journey far larger than they ever imagined.
Friendship, trust, and loyalty will be tested, and every choice could change the fate of the worlds and the lives tied to them.
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Morning of Farewells by Bright_Rose
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic X (Cartoon 2003), Super Mario & Related Fandoms, Super Mario Bros. (Video Games), Mario & Luigi Series (Video Games)
05 Dec 2025
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Summary
"May the stars shine down on you."
- Language:
- English
- Words:
- 628
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 31
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To A Shining Road by Bright_Rose
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Live Action Universe), Sonic X (Cartoon 2003), Super Mario & Related Fandoms, Mario & Luigi Series (Video Games)
04 Dec 2025
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Summary
Theme song for rewrites of episodes twenty-five and twenty-six of "Sonic X."
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The One who was Always Alone by ultimatelifeform1955
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comics), Sonic X (Cartoon 2003)
04 Dec 2025
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Summary
The first Shadow POV fic in this series!
Some members of G.U.N. are trying to seize possession of Shadow, on the claim that he was a G.U.N.-funded experiment. Shadow, obviously, is not impressed. Nor is Team Dark as a whole.
While all the nonsense with G.U.N. is going on, Shadow is also learning how he fits into the gang now that they all know of the new friendship between Sonic and Shadow.
Series
- Part 6 of Enemies, Rivals, or Friends?
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Forged Family by NAStories
Fandoms: Sonic the Hedgehog (Video Games), Sonic the Hedgehog (Archie Comics), Sonic X (Cartoon 2003)
03 Dec 2025
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Summary
One shot (Maybe this could change.)
A family forged by agendas, not meant to last, meant to split when the duties end. Yet plans never go accordingly to the plans, do they?
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Sonic The Hedgehog SatAM Re-Genesis 05X09 -- "THE MARK OF THE DOMINAR" by EricEmmanuel
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog: The Animated Series, Knuckles the Echidna (Archie Comics), Sonic the Hedgehog (Archie Comics), Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic Underground, Sonic X (Cartoon 2003), Sonic SatAM
03 Dec 2025
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Summary
Sonic and company attempt to free Mobotropolis and Sally from the grip of Lien-Da and the Dark Legion.
Series
- Part 48 of Sonic The Hedgehog SatAM Re-Genesis
- Part 9 of CODA: THE FINAL ACTS
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What Will Come Next? by Bright_Rose
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Live Action Universe), Sonic X (Cartoon 2003), Super Mario & Related Fandoms, Super Mario Bros. (Video Games), Mario & Luigi Series (Video Games)
03 Dec 2025
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Summary
"I hate to interrupt."
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A World Without Danger by Bright_Rose
Fandoms: Sonic the Hedgehog - All Media Types, Sonic X (Cartoon 2003)
03 Dec 2025
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Summary
"Help them, Shadow! Please!"
- Language:
- English
- Words:
- 403
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 59
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Delta Diaries by Bright_Rose
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Live Action Universe), Sonic X (Cartoon 2003)
02 Dec 2025
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Summary
Tidbits from my Sonic headcanon.
- Language:
- English
- Words:
- 238
- Chapters:
- 1/?
- Kudos:
- 2
- Hits:
- 126
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Chords of Chaos by Frogswim, Salt_6PO36
Fandoms: Sonic the Hedgehog - All Media Types, Sonic - Fandom, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (IDW Comics), Sonic Boom (Cartoon), Sonic the Comic, Sonic X (Cartoon 2003), Sonic Prime (Cartoon 2022)
01 Dec 2025
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Summary
Sonic’s the golden boy of the city’s music scene - bright, brash, untouchable. Shadow’s the fallen virtuoso who vanished from the spotlight years ago. When they’re hired for the same wedding, sparks fly between the glitter and the gloom. As melodies intertwine across rain-soaked nights and quiet stages, they find themselves composing something neither planned: a duet of longing, redemption, and love.
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Sonic X: Alquitran, placer, maldad by Tekkai698
Fandoms: Sonic the Hedgehog - All Media Types, Sonic X (Cartoon 2003)
30 Nov 2025
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Summary
El Dr. Eggman decide crear un nuevo invento para derrotar a Sonic, y su resultado es una sustancia extraña que parece alquitran, la cual tiene habilidades extrañas y aterradoras.
Cuales serán las habilidades de esta sustancia, y lograra tener éxito esta vez el Dr. Eggman?