1 - 20 of 458 Works in Alternate Universe - Steven Universe Fusion
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In a world of gems separated by carnivores and herbivores, Legoshi has never fused. All that changes one day in drama club that will change the outcome of his life.
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Janus Chronicles - The Ultimate Sci-Fi Fantasy Crossover by HouseDarkSteed
Fandoms: Game of Thrones (TV), Warhammer 40.000, Star Trek, Babylon 5 (TV 1993), Mass Effect - All Media Types, Halo (Video Games) & Related Fandoms, Fallout (Video Games), Stargate - All Media Types, Firefly (TV 2002), Transformers - All Media Types, World of Warcraft, Star Wars - All Media Types, Mortal Kombat - All Media Types, RWBY, Rise of the Planet of the Apes (Movies), Planet of the Apes (Movies 1968-1973), Planet of the Apes (2001), The Lord of the Rings - All Media Types, Chronicles of Narnia - All Media Types, Steven Universe (Cartoon), Dragon Age - All Media Types, Avatar: The Last Airbender (Cartoon 2005), Avatar: Legend of Korra, Aliens vs Predators Series - Various Authors, Predator Original Series (1987-1990), Alien Series, Dragon Ball, Dragon Ball - All Media Types, Ash vs Evil Dead (TV), Devil May Cry (Gameverse), Bayonetta (Video Games), Doom (Video Games), Berserk (Anime & Manga), Samurai Jack (Cartoon), Hellsing
22 Jun 2025
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In most universes, the Gates opened in low orbit above Pluto, others to their equivalent, leading to a shared dimension connecting all of them together. For the worst, as it would seem, as the Imperium of Man uses this new beachhead to launch invasions into every sci-fi and fantasy universe one could imagine.
Welcome to the Janus Chronicles. Where we will explore ever possibility that comes with this premise. And if you have any suggestions on what crossover event should happen, or what characters should meet, please let me know, and I will see if I can incorporate your idea into the story.
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William had his own secret, he wasn’t human. He was a being known as a Gem and he was on a very important mission. When Mark gets his powers he’s a rookie hero in over his head, but William steps in as Ruby Red and helps and supports him.
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An assortment of au ideas and snippets that have been on my mind for a while. Each chapter is a different universe. Some are more thought - out than others.
Chapter 1: Feral Falls (Feral Ford au)
Chapter 2: Serendipity (au where Stan arrives late and Ford has already gone through the portal)
Chapter 3: Crystal Falls au
Chapter 4: Stanly Strange and Mister Six (based on the novel; Jonathon Strange and Mister Norrel)
Chapter 5: Tarzan au
Chapter 6: Pined For (in which Stan and Ford are both missing and the twins visit the Shack with their parents)More be added.
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Shatter the Diamond by SilverOrchidEon
Fandoms: Hermitcraft SMP, Life Series | 3rd Life SMP Series, Steven Universe (Cartoon)
11 Jun 2025
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They jumped, and so did you. Their plan is in action, though, it's in another dimension, universe, if you will.
(This is the newest installment of the Slay the Watcher series, starting with Slay the Watcher and continuing to Save the Watcher and this installment. To avoid confusion, read both Slay the Watcher and Save the Watcher before reading this one.)
Likewise to "Slay the Watcher", this is not my AU, but is @blueishspace's on Tumblr, found under the Shatter the Diamond tag, making use of polls. This is a repost of the story onto AO3 with permission.
Series
- Part 3 of Slay the Watcher
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As Homeworld embarks upon another chapter in its era, there is little doubt that their newest diamond will bring about newfound prosperity. A race of space-faring gems designed to conquer other worlds, to pillage and take and extract and infect. It was a wonder how Pink Diamond could ever catch such an interest in organic life, for as fickle as it was. He was an anomaly amongst the other diamonds—amongst gemkind itself. His smiles were genuine. His lustre was vibrant. His gem sat at his naval signalling his status as a cold, ruthless, efficient ruler meant to establish order and control.
Yet he wasn't anything like that.
At least, not on the surface.
It was a poorly kept secret that he held a strange sort of attachment to his pearl.
One would think... that there was something going on.
Here lies the story of Pink Diamond. A gem as bright as the stars themselves. A dear friend. An empath. A liar.
//
Or, a 3/4 Sleepy Bois fanfic set in the world of Steven Universe because the curse lives on even in this au.
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Set in an AU and sequal to 'Black Diamonds Legacy Origins', come along and witness the two hybrid brothers who each have unpredictable and inevitable fates. Come join Steven and his older brother JJ, along with the Crystal Gems as they embark on an incredible wilde adventure that will be told for centuries to come.
Series
- Part 1 of Black Diamond's Legacy Origins
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Before Earth was officially colonized, it was tested—in secret, in silence, and without oversight. One such experiment, buried beneath red stone and forgotten by time, reactivates against all odds and produces a gem that should never have existed.
Elsewhere, a soldier forged on another world returns to Homeworld just in time to watch it fall apart. Disillusioned, he abandons the war and disappears into Earth’s shadows.
Two imperfect creations. Two paths shaped by failure, violence, and survival. On a planet that never asked for either of them, they will find each other—and something more.
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On a mission Dazai and Chuuya were hit with an ability and now Soukoku is one person. See how they and their friends deal with the sudden change and learn some things about their friends/comrades along the way.
This is my first work so please go easy on me. :)
Constructive criticism is appreciative just don't be rude.Series
- Part 1 of Soukoku is a person not a duo
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Something happened to Sofie, and she changed for the worse. In the aftermath she hides herself away frantically, so nobody can even look at her. She knows even her own family can’t face her. All but one joy remains, along with terror something else opened that late summer's day. And she can’t unsee the girl with eyes of fire.
Runa hates herself, and she knows why. From the mists of her childhood, she has always known she’s bad. Apart from her foster parents, nobody has ever treated her like she’s worth anything. That is until that girl from the late summer’s day actually speaks to her. Still her eyes glimmered blue like the heavens, it’s hard to doubt her enthusiasm when she’s staring straight at it.
Follow young love as it blossoms, in Norway late 2005. Observe them untangle themselves, to tie up together. Witness them finally understanding the world around them, to face what happened, and move past it together.
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Steven universe is a kind boy who just so happens to live with magical space rocks. Also known as the crystal gems! While he has never truly had his chance to shine. He's sure that his gem will make happen.!
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Any day now...
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Or Steven universe is white diamond AU
Series
- Part 1 of White diamond AU
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Steven es un chico mitad Gem y mitad humano, un ser único en su especie, sin embargo, su Gema no es cualquier Gema, en realidad es un Diamante, las mas altas en la jerarquía de Gemas, y cuando las Diamantes se enteran cuando él tiene solo 8 años de edad lo secuestran y lo llevan al Homeworld en contra de su voluntad y separandolo de su familia, donde su vida cambiara por completo.
Series
- Part 1 of Programación Diamante
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Steven wants to help Lapis heal from the trauma that still grips her, but will he find the strength to break the mental chains that bind her? Or will he become trapped in those same chains, pulled under by the weight of what he cannot fix?
Series
- Part 2 of Fusion Palooza
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The Feeling in my Chest Doesn’t Match the Logic in my Head by EvyEvener
Fandoms: 3rd Life | Last Life SMP Series, Hermitcraft SMP, Empires SMP
11 May 2025
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“Oh, Jimmy, it’s nothing, really, just a thought,” Scott says almost wistfully.
Jimmy… that name… it was his. That belonged to him. His very own. A name that Scott would call him any day.
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“Honestly I don’t even really remember much. I was here, and then I just wasn’t. It was like I was somewhere else.”
“I felt very detached during the whole situation, but still, I wish I remembered more.”
“I think… I might have had a name. Like a name other than Lapis.”
OR
AU where Jimmy lost his memory and his life series family and starts having flashbacks about it.
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Rose suddenly had not one but two children Steven and... you.
You grew up with the crystal gems and Steven, they were your family.
As time goes on you start to feel like Steven gets all the spotlight, he deserved it... he's better than you isn't he?
You just wish you could have your own part in this story too.
Maybe you will?————————-
Reader is gender-neutral, I tend to accidentally make it a bit more male but I’m trying to make it gender-neutral.
Hey everyone, this is one of my first stories on Archive of our own, I've written other stories on other platforms so I have some experience. I made this cause I love Steven universe, and wanted to continue practicing my writing.
That being said, grammatical errors will always be kept to a minimum and I'll always be trying out new things with this story.
Originally I planned on starting at future and making it short, but I'm stubborn and decided to start at the beginning. I love long and well fleshed out stories, so I hope I can accomplish that with this one.Thanks for reading❤️
First chapter published 23/1/2022
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Gemcyt but make it about the Southlanders and Last Life
Title comes from my favorite SU song, Full Disclosure
AU by Chrisrin
No schedule for rn
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What if it wasn't Steven Universe, what if it wasn't Connie but Volleyball or OG Pink Pearl. What if Steven was left behind. What if Rose Quarts gave her life to save Spinel after a Rejuvenator attack. What if Connie and Steven came first from the human zoo and had some changes to them. What if Connie swapped with Volleyball and Steven with Spinel. What if...
Series
- Part 1 of Spinel Universe
- Language:
- English
- Words:
- 3,027
- Chapters:
- 1/?
- Kudos:
- 17
- Hits:
- 125
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Steven AUniverse: Black Diamond Steven by Malognope
Fandoms: Steven Universe (Cartoon), Steven Universe: The Light Series (Video Games)
12 Apr 2025
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A MomSwap AU where Steven is the son of the Black Diamond, a mysterious gem that nobody knows about the existence.
In this universe, Steven didn't have anyone to guide him in the right path, and mixed with Black Diamond's influence, he became a rogue and a thug. Here there are threats besides Homeworld, just like an agency who wants to capture Steven, militias, other alien species and the Black Diamond Empire.
Series
- Part 1 of Black Diamond Steven (MomSwap AU)
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Crystal Straw Hat by Binjack_Bingus
Fandoms: One Piece (Anime & Manga), Steven Universe (Cartoon)
08 Apr 2025
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Luffy x OC
This work is just the first chapter of the final draft of my story. Consider it a sneak peek.
It's a mash-up of One Piece and Steven Universe where the plot follows a female gem hybrid named Nora who meets and joins up with the Straw Hat Pirates.
If you want to read it, I posted the first draft of my (almost) complete story on Wattpad, but it's rough and has errors. The story in that version will be quite a bit different than the final version of this story; the first chapter in this one starts much earlier in the One Piece timeline.
- Language:
- English
- Words:
- 10,292
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 59
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PinkRage by MW_Rio
Fandoms: Steven Universe (Cartoon), Young Justice (Cartoon), Justice League - All Media Types, Teen Titans - All Media Types, Invincible (Cartoon 2021), Invincible (Image Comics)
07 Apr 2025
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In where an alternative version of steven universe is thrown into the world of DC. Lex luthor gets ahold of him,and let's just say it isn't looking too good for the star boy...