1 - 20 of 162 Works in Master Emerald (Sonic the Hedgehog)
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Sonic the Hedgehog, a franchise with plenty of debated Eras and even more Continuities, some far more dangerous then others for an isekai victim as human as the egg-headed main antagonist himself with no super-intelligence or cheats or systems to speak of. Just meta-knowledge, lots of it, and by extension, plenty he can do with it.
Sonic Films? Fine. Sonic X, Boom, and Prime? Manageable. Gameverse? Dicey, but doable. Archie and Fleetway Comics? No thanks. Sonic SatAM and Underground? Better than dealing with any EXEs, still wouldn’t even if his second life depended on it. Shame that he has no choice in the matter.
At least he can decide what to do after the fact, make the most of this situation he’s stuck in. So what to do then? Join GUN? As if. Go the Chris Thorndyke route? Pass. Babysit the cinnamon roll-haired hologram that got carried along for the ride? Meta supposes that, exploiting plot holes aplenty, and causing chaos for all things canon will have to do.
Series
- Part 3 of How to Survive Series
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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)
30 Oct 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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The Monster of Angel Island by KittenAround, TheVeniceAngel
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comics), Sonic the Hedgehog (Video Games)
30 Oct 2025
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When Metal Sonic steals the Master Emerald, Knuckles enlists the help of all the werecreatures he knows to get it back. However, the bite that he sustained from his confrontation with Metal Sonic has...interesting side effects.
Series
- Part 29 of Sonic Brave Hearts
- Language:
- English
- Words:
- 4,449
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 60
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Summary
Prince Ivo Robotnik is about to be coronated King of Green Hills, and he has to choose someone to be his queen. Who better than his loyal knight and childhood friend, Sir Aban Stone?
Series
- Part 26 of Stobotnik Oneshots
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Summary
Assorted Rouxadow snippets, updated as and when inspiration strikes.
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Where My Senses Gave Way by steamedgoatmilk
Fandoms: Sonic the Hedgehog (Live Action Universe)
16 Oct 2025
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Who knew that the power of the Master Emerald would allow you to duplicate yourself? Ivo does, and he uses this knowledge to fuck Stone like he never has before.
Inspired by this post -
https://www.tumblr.com/lalalaurieart/796146892847349760/i-got-this-amazing-commission-done-bySeries
- Part 3 of The Click
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The Ultimate Parasitic Lifeform: That Freak of Nature by AZWritesStuff
Fandoms: Sonic the Hedgehog - All Media Types
12 Oct 2025
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Sonic the Hedgehog's life was far from boring, that's for sure. Unfortunately, he was suffering through one of those slow days between grand adventures. Tails seemed to be interested in something though: this strange signal he received from some abandoned facility barely connected to the EggNet. It wasn't an emerald, no, but something else messing with the ambient energy inside.
Huh. Well, that doesn't just happen outta nowhere.
To kill their boredom, Sonic and Tails decided to go and investigate the signal, expecting to find an abandoned project of sorts within that old base.
Well...they weren't wrong about what it was, but they weren't expecting it to be an actual living being hiding in the building's ventilation shafts where it wasn't supposed to be at all.
Nor was Sonic expecting to become an unwilling host to something that genuinely made him feel uneasy.
...Would it bad idea to ask how things could possibly get worse from here?
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0101001101110100011011110110111001100101 by Tiercel13
Fandoms: Sonic the Hedgehog (Live Action Universe)
11 Oct 2025
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Ivo Kintobor is a genius. But with that comes loneliness, so what else is a child genius to do than build himself his own best friend? He's the only one he can count on to make sure he'll never be alone again.
Written for the Stobotnik Big Bang 2025
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Just the Four of Us by TCTW
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (Archie Comics), Sonic the Hedgehog (IDW Comics)
05 Oct 2025
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Sonic, Tails, Knuckles, and Amy decide it would be a good idea to gather one day to spend some quality time on Angel Island.
Just the four of them.
Uninterrupted by anybody else.
And one of them realizes it's been a while, a very long while, since they last did exactly that...
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The Blue Blur and The Valkyries by SuperBoomX
Fandoms: Sonic the Hedgehog - All Media Types, 崩坏3rd | Honkai Impact 3rd (Video Game)
04 Oct 2025
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After accidentally getting sucked into a mysterious portal during a fight against Dr. Eggman, Sonic and Tails end up in a parallel universe, different from their own. One where Humanity is fighting a dangerous phenomenon called The Honkai. While trying to get back to their universe, Sonic and Tails will help a group known as the Valkyries to fight off the Honkai. Will the two heroes help save Humanity or die trying?
Series
- Part 1 of Blue Hedgehog in the Honkai World
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Eggs Stones and ropes by Itsthestonemilker
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Live Action Universe), Sonic Boom (Cartoon)
30 Sep 2025
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Stone and rob are trying to get the master emerald but fail miserably and end up getting tied up in trouble...tied up litterally.
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& Knuckles by DigiConjurer
Fandoms: Sonic the Hedgehog - All Media Types, Fate/Grand Order
29 Sep 2025
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In a stroke of luck, Knuckles the Echidna finds himself in the world of Fate Grand Order.
Also, microwaves.
Series
- Part 7 of DigiConjurer's Various Chaldeas
- Language:
- English
- Words:
- 5,542
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 119
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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
20 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 ).
).
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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The Ultimate Lifeform Gift Exchange by RyuuYouki for Kitsune1818
Fandoms: Sonic the Hedgehog - All Media Types
16 Sep 2025
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My part of the Ultimate Lifeform Gift Exchange.
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Skyfall by underonesbed
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
14 Sep 2025
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Summary
Something is wrong with Angel Island. The ground keeps breaking, the emerald dulling, and the hour rewinding. And there's something that Sonic needs to remember, but it keeps slipping past.
All he knows is that something is wrong with Angel Island, and he'd better figure it out, fast.
Written for the Sonic Telephone Event!
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What happens when Sonic brings home his new boyfriend? Will Tails be accepting or will he try to fuck up their relationship?
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They both had completely different goals in mind. Neo Metal Sonic wanted to take the Master Emerald and use its power to rule the world and destroy Sonic once and for all, and Sonic wanted to put the Master Emerald back where it belonged and show Metal Sonic who the superior Sonic was once again. But now, the Master Emerald has stolen them instead, and in order to escape, the two hated rivals must throw away everything they stand for in order to make it out alive.
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Shadow wakes up on Earth, his memories vague after the Eclipse Cannon explosion. However, the haunting memory of a blue hedgehog taunts him. Desperate for answers, he goes looking for him. Instead, he runs into a knuckle-headed echidna who is eager for his Master Emerald. They must work together and swim through GUN secrets to get what they want.
Basically Knuckles Season 2.
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They have known each other as enemies, rivals, and eventually companions, but over time even the best of friends can forget that which brought them together. When a strange situation arises that may threaten Angel Island and its Guardian, can Sonic convince the echidna to trust in a friendship that was once strong, or will Knuckles insist on dealing with the situation alone?
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Two individuals at a crossroad—friendship in tatters, trust a wavering thing, danger looming. How much do they actually mean to each other? Are they ready to let life take them their separate ways? Will they fight to hold on to a bond that once seemed unbreakable? An epic adventure. Two journeys of self discovery. A quest that will test limits of what friendship means to Knuckles and Sonic, and a threat that will question to what depths they are willing to go to protect each other.
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Long Way Forward by yvn_snt
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
24 Jul 2025
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Shadow and Tikal talk about their lives…and loves.