1 - 20 of 49 Works in Sonic the Hedgehog Transforms into Dark Sonic
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Sonic the Hedgehog: Beginnings 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)
27 Sep 2025
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Summary
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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Sonic The Hedgehog: Utter Chaos. by WayPastChaos
Fandoms: Sonic the Hedgehog - All Media Types, Sonic Boom (Cartoon), Sonic the Hedgehog (Archie Comic)
18 Sep 2025
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Summary
Third Book in: Sonic; Running.
~~~Exposing G.U.N may not have been such a good idea.
When two new, time traveling heroes appear with dire news, it seems defeating G.U.N may have been a mistake. A bigger evil is on its way.
What’s more, when a dog named ‘Cliff’ informs Sonic and friends about something called the “Chaos Emeralds”, it becomes deadly apparent this new evil is somehow connected.
In a race against Eggman and Time itself, the heroes journey across the world to find these brilliant jewels.
Little do they know, this new evil lives within the Fastest Thing Alive.
After all, Sonic’s tipped the first domino and it was the kind of race even he couldn’t outrun.
“Anger doesn’t solve anything. It builds nothing. But it can destroy everything.”
- Lawrence Douglas Wilder.~~~
Warnings:
-possible strong language.
-dark themes (mental descent, explosive coping mechanisms, implied self-harm).
-depictions of visions and abuse.
-lack of self care.
-manipulation and gaslighting.
-death.Viewer discretion is greatly advised.
Series
- Part 3 of Sonic:Running
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隙間 Inside the Hole by tsukishiro9
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
16 Aug 2025
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Summary
他本應該要冷酷無情的，他應該像陰影一樣無聲退去。他應該轉身離開，像之前無數次那樣將索尼克推開，任由晶簇重新閉合，將索尼克徹底隔絕在黑暗裡。為了守護外面的人，也為了守護面前的人。
可索尼克只是輕輕喊了他的名字，他的身體就背叛了他。- 索尼克自一片黑暗中醒來，確信自己正時時刻刻被洞中那雙腥紅的眼眸窺視著，這讓他內心充斥著被背叛的憤怒與悲傷。
- 或著，監管索尼克的任務落到了夏特身上，而他是這世上唯一能夠牽制blue blur的存在，同時也是他的戀人。 -
Sonic: RESET by shadowmp4
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
31 Jul 2025
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Summary
The world was falling apart — cities in ruins, friends gone, hope running out. Sonic the Hedgehog thought Project RESET was their last chance to make it right.
It was supposed to fix everything: the bloodshed, the losses, the collapse of everything that mattered.
Instead, it rewrote reality… and left him alone with the memory of what came before.
Well — not completely alone.
Because the only other person who remembers the old world is Shadow the Hedgehog.
And together, they’re going to burn this new one to the ground.
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Below The Depths by Ghosthost19
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic Underground, Sonic the Hedgehog: The Animated Series
27 Jul 2025
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Summary
Team Sonic goes on a mission, not telling anyone where they are going. Unbeknownst to them, things go wrong, and only Tails returns home. Badly injured, he is unable to tell anyone what happened and falls into a coma. Shadow, faced with a promise he made and certain revelations that have come to light, goes looking for his rival with the help of his friend Rouge.
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[Sonadow] After Top/Bottom Battle ~ Fear of Loss by pinkslider
Fandoms: Sonic the Hedgehog - All Media Types, Shadow the Hedgehog - Fandom
26 Jul 2025
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Summary
Continuing the electrifying journey of Sonic and Shadow, two hedgehogs whose rivalry ignites into stolen moments of intimacy, their story unfolds with raw emotion and unspoken longing.
Plunging into their fragile connection after a passionate night, Sonic dreams of a deeper bond, Shadow flees, torn by fear and vulnerability...
Sonic has been searching for Shadow & spammed tons of messages.
“What’s with the ghosting?” Sonic shouted, “Your silence is driving me nuts! My head’s been FULL of you, Shadow... ALL WEEK!!”
Dark Sonic X Tsundere Shadow!! [[Warning: Rape & Angry Sex!]]
Series
- Part 2 of KICHIKU Sonic X Tsundere Shadow
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Said and Unsaid by yvn_snt
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
24 May 2025
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Summary
Having lost someone important to both of them, Sonic and Shadow reconcile with their grief in different ways.
TW/CW: Blood and violence, passive and active suicidal ideation, and emotional/mental breakdown
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Who He Used To Be by secretsofthestars23
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
22 May 2025
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Sonic and Tails are more than just best friends. They are brothers, and through every hardship that's been thrown at them, they've gotten through it together. But when Infinite's attack leads to Sonic's imprisonment and Tails believing him dead, holding onto hope becomes impossible. Infinite is planning more than just torture for Sonic. He wants to tear apart his mind until he can't tell illusion from reality, or remember if the young fox is his dearest friend or an enemy trying to kill him.
Tails, meanwhile, refuses to accept that Sonic is dead, and will do anything to get him back. But even if he succeeds, nothing will ever be the same. The war in the outside world continues to destroy everything that the gang holds dear, but when the damage is deep within, how can it ever be rebuilt?
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Panic Disorder (Feed The Hedgehog Vol. One) by CACAOCOCOA_EXE (CocoaWinds99)
Fandoms: Sonic the Hedgehog - All Media Types
10 May 2025
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Summary
What happens when a Hedgehog's suppression explodes during a battle?
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Save My Day by NorthN
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
04 May 2025
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Summary
夏特从一场灾难中回到家，发现索尼克站在黑暗里。
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stars fall from the sky (and from my eyes) by EmmaSmoke
Fandoms: Sonic the Hedgehog - All Media Types
29 Apr 2025
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Summary
Dark Sonic is tired. He makes a decision. Hyper Shadow must reconcile with that, but the only way is to let himself feel everything he’s let the chaos emeralds take from him.
—Inspired by shoophise's HyperDark AU on Tumblr ( https://www.tumblr.com/shoophise?source=share )
Trigger Warning: Suicide/death (resurrection), blood, graphic description of injury, unhealthy relationship, codependencySeries
- Part 109 of This Hedgehog Has Me in A Damn Chokehold
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Summary
Sonic fought to bring Shadow back from the flawless, distant being he had become. But the harder he tried, the more Sonic lost himself to cruelty and bitterness. In the end, they found peace—not by returning to who they once were, but by accepting their imperfect, broken pieces as something perfect in their own way.
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All This Destruction, Yet I'm Still Here by EmmaSmoke
Fandoms: Sonic the Hedgehog - All Media Types
25 Apr 2025
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While exploring an abandoned city being reclaimed by nature, Dark Sonic makes another attempt to fight Hyper Shadow. It doesn't go the way he wants it to. Hyper Shadow doesn't fight back. Dark Sonic isn't able to kill Hyper Shadow... or himself.
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Inspired by shoophise's HyperDark AU on Tumblr ( https://www.tumblr.com/shoophise?source=share )
Trigger Warning: Codependent and unhealthy relationships, murder attempt, suicide attempt, self-harmSeries
- Part 106 of This Hedgehog Has Me in A Damn Chokehold
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The Rule of Three by Water9826
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Live Action Universe)
24 Apr 2025
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Summary
It is said that concepts are better understood went it is grouped into threes: Survival depended on food, water, and shelter. Hard work needed one's blood, sweat, and tears. Gravity was split into three laws of motion.
The Ultimate Lifeform was the same. Being separated into three hedgehogs of incredible power.
The oldest. Black, red, and determined to protect.
The middle. Blue, green, and aching for freedom.
The youngest. Grey, gold, and filled with hope.
...and G.U.N was making the Ultimate Lifeforms suffer.
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"They're our kids."
"Then why is the blue one biting you?"
"He's...hungry?"
"Sure thing, hun."
“Listen. Will you help us or not?"
"Of course, dear! Anything for those boys. And that beautiful green gem the doctor and echidna are looking for too~"
Series
- Part 2 of The Hills Have Hedgehogs
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Summary
Dark Sonic considers his life and Hyper Shadow's place in it. He doesn't come away with healthy conclusions, but it isn't like he'll ever get what he wants.
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Inspired by shoophise's HyperDark AU on Tumblr (https://www.tumblr.com/shoophise?source=share). Totally check them out. the art is so good.
Trigger Warning: Codependent and unhealthy relationships, suicide attemptSeries
- Part 102 of This Hedgehog Has Me in A Damn Chokehold
- Part 38 of The Moon and the ARK
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turnabout getaway by SakanaKana
Fandoms: Sonic the Hedgehog (Video Games), Sonic the Hedgehog - All Media Types
01 Apr 2025
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Summary
The world is finally calming down after the whole 'continents drifting away from the planet and Dark Gaia being awoken ahead of the time for the world to be destroyed and created anew' crisis that Sonic immediately put a stop to. But even with the scheduled apocalypse put right back on track, it seems like trouble follows after Sonic like a pack of dolphins at the pier, eager for a glimpse of the blue hedgehog. Namely, the creative liberties of his midnight wardrobe. To get to the bottom of it, Sonic and Tails embarked on a journey to hunt down their answers. They were optimistic of their chances on discovering a solution to Sonic's grizzly side.
But their plans went sideways when Tails got hurt, by a figure wearing a familiar face, and as Sonic stood in the middle of the chaos of their lives unraveling right before him-
Seeds of doubt unfurled deep inside him, roots of indecisiveness anchoring to his flesh, choking vines wrapping around his throat. Allowing someone he hadn't seen in a while to greet him.
Or, how do you soar...
... when your mistakes kept you rooted to the ground?
Series
- Part 1 of sonic's moving island au
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Summary
The plan was to pretend to lose.
This wasn't supposed to happen.
Sonic whirled around as he saw his friends and allies fall, one by one. The Doctors. Rebel. Shadow.
A strange, foreign feeling became hot in his body, bubbling and boiling and begging to be freed. He let it out.
~
As Shadow stared at the power in front of him, knew he was the only one who could stop everything and everyone from being destroyed.
Series
- Part 6 of I Have No (Chaos) Control
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Summary
Shadow and Maria find a place to rest while they recharge their strength. They discover it is a temple that worships the main god, Sonic, the one who abandoned the world many years ago. A priestess tells them the story...
Many years before this, Sonic finally breaks beneath the weight of mortal-kind's depravity. He goes mad, and he forces the voices to finally be silent.
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Trigger Warning: Sonic sees some terrible stuff in the second half. He sees child abuse, animal abuse, gang-rape, blood, corpses, poop in the streets. He also hears a lot of people praying to him which is adjacent to auditory hallucinations. He goes crazySeries
- Part 48 of This Hedgehog Has Me in A Damn Chokehold
- Part 5 of The Sun, the Moon, and the Fox
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Sonic: Bonds Across Worlds by KamenRiderAvenger2022
Fandoms: Sonic the Hedgehog (Live Action Universe), Sonic Boom (Cartoon)
06 Jan 2025
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Following an attack by Surge on his first date with Amy that left her injured, Sonic flees to Earth in order to keep his friends, family, and Mobius safe from Dr. Eggman. A year later, Amy arrives on Earth to find him. What follows a crazy adventure that results in Sonic and Amy's relationship coming forth and a battle against the most formidable foe that Eggman has created to protect Earth and Mobius at the same time
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Let My Promise Be an Ember in the Darkness by EmmaSmoke for LyricsofVixra
Fandoms: Sonic the Hedgehog - All Media Types
05 Jan 2025
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Summary
When the moon passes over the sun in the mortal realm, the divine realm is engulfed in darkness. These eternal shadows are called not by the god of the sun, but by Sonic the Dark-Bringer. The gods are prepared for it. Tails, a mortal living in the divine realm, is not, but Shadow is there to protect him... even when Tails puts his life in danger to confront the dark-bringer.
Or, what Dark Sonic is in my god AU
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Trigger Warning: Child abuse, verbal abuse, sacrifice (not of anything living, tho)Series
- Part 41 of This Hedgehog Has Me in A Damn Chokehold
- Part 4 of The Sun, the Moon, and the Fox