1 - 20 of 128,924 Works in Crossover
Navigation
Listing Works
-
Tags
Summary
There is an old River that has been flowing at the very bottom of the world for many an age. It is the source of everything, but has been forgotten by mankind.
If all Rivers flow to the sea, then what becomes of those capable of skimming its waters? The game has persisted longer than memory. New players stand as proxies for those on the other side of the mirror, with the City itself as collateral.
How different are you from your Shadow, really?
Persona and Project Moon crossover, most heavily focusing on the Library of Ruina cast. OC protagonist as the Wild Card.
-
Stitching Dimensions by EntropyTheory
Fandoms: Danny Phantom, Star Trek: The Next Generation
15 Oct 2025
Tags
Summary
Jack Fenton takes Danny with him on a father-son bonding trip in the Ghost Zone to test a new invention. It goes about as well as one might expect.
- Language:
- English
- Words:
- 868
- Chapters:
- 1/?
- Hits:
- 0
-
Bale Eye Rick Rides Again by coyote_ace
Fandoms: Warhammer 40k (Novels) - Various Authors, Starfall (Novel) - K. Ramsuer
15 Oct 2025
Tags
Summary
Sebastian Yarrick died at Angron's hand. Really, he did. It was a good death, he did his duty, and now it's time to stand at the Emperor's side for eternity.
Ghazghkull Thraka has other ideas. He also has some help from an unexpected source and a burning need to destroy a certain daemon Primarch. To do that, though, he's going to need all the help he can get... even if that means ripping open a door the gods sealed shut for a reason.
Series
- Part 1 of War is an Open Door
-
Tags
Summary
Over a decade has passed since Kira's reign began. Criminals. Scum. Lowlives. All dead with just a wave of a pen and a black notebook. Such things had long since become the norm for this world.
So what happens when the Phantom Thieves are born? When Kurusu Akira, an orphan-turned-criminal, steps onto Kira's playing field with the intent to take him down? Not only that, it seems as if there's others who came to play. Successors born to serve as doubles for a dead man. Rebels who would destroy any rival who would get in their way. And of course, monsters who should be dead and buried…
Akira was never chosen to succeed the World's Greatest Detective, but she was going to make herself Kira's biggest problem.
Let the new game begin.
-
The Ultra Chronicles of Ultra Yuri AKA Marie's Lesbian Crisis by KivatheDCWizard, Ri2, SpideyViewer
Fandoms: ウルトラシリーズ | Ultra Series, Super Sentai Series, Kamen Rider - All Media Types, RWBY
16 Oct 2025
Tags
Summary
It's not a good time to be Mother of Ultra right now.
Many of her subordinates and young Ultrawomen are leaving the Land of Light to join the harems of the Youkalien Star Hegemony, the leader of which won't stop flirting with her.
Her ex-girlfriend wants to get back together and she's having a hard time saying no.
And worst of all, they won't stop calling her 'Captain Mommy!'
(Now featuring some heterosexuality.)
Series
-
Beyond the Outer Gates Lies… A high school library? by Xavon_Wrentaile
Fandoms: The Dresden Files - Jim Butcher, ハイスクール DxD - 石踏 一榮 | High School DxD - Ishibumi Ichiei
16 Oct 2025
Tags
Summary
A recursive fanfiction of Beyond the Outer Gates Lies... by gabriel blessing. I highly suggest you read the original first.
The ongoing hijnks of de-aged Harry Dresden in the world of DxD. It appears Sona and Tsubasa are not the only ones interested in Harry. And this universe might not be as safe as it initially seemed. Canon events continue to happen, but the butterfly that is Dresden is making an ever larger impact.
-
One Hell into Another: DOES GOD REALLY HATE ME THIS MUCH!? by NINJ45WORD
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Shingeki no Kyojin | Attack on Titan
16 Oct 2025
Tags
Summary
Izuku has his canonical brush with death, is suicide baited early in the day after a particularly bad beating and meets his idol.
Same shit happens as before, only Izuku follows through with the suicide bait.
Only to appear in a world that is far worse off than his own... also he loses all memory of his world. Only brief flashes of Bakugo will appear when he's making an attempt to be close to others. This will keep him away from most characters for a long while... until the Trost District Arc where they are making the attempt to reclaim it from the Titans.
-
Tags
Summary
Demon/ not-demon. It's always been black and white. Until now.
Rumi finally can show who she really is and be herself. But can anyone really understand?
One day, she comes across someone who might actually get it. -
A Study in Unyielding Compliance by TiredHickory
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Grey's Anatomy
16 Oct 2025
Tags
Summary
“Stabilize him just enough to stay alive, bill the parents, and put him on the next ambulance,” Ayrenn said, clicking her pen. “If he bleeds out on school property, it’s a lawsuit. If he bleeds out in transit, it’s the hospital’s problem. Economics 101.”
Aizawa stared into the void. Vlad King had a panic attack. And the League of Villains, witnessing the sheer bureaucratic horror, decided to just leave the kids alone.
(Or: The crackfic where a medically-inclined OC weaponizes malpractice law so effectively she becomes a force of nature.)
- Language:
- English
- Words:
- 3,853
- Chapters:
- 3/3
- Hits:
- 0
-
Hero & Magus Analysis for the Future Vol.1 by Gyemknight
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 転生したらスライムだった件 - 伏瀬 | Tensei Shitara Slime Datta Ken | That Time I Got Reincarnated as a Slime - Fuse, Fate/stay night & Related Fandoms, Japanese Archipelago Folk Religion & Lore
15 Oct 2025
Tags
Summary
Izuku's notes on his friends enemies and everyone around him.
Series
- Part 2 of The Light of Divinity Reaches All
-
Alice in Wonder1and tries to start her queer army by stephl289
Fandoms: Stardew Valley (Video Game), Alice in Wonder1and
16 Oct 2025
Tags
Summary
Alice in Wonder1and, a semi-famous blogger, is tired of her job at Joja Corporation and moves to a farm. Her main tasks are to recruit femboys and gather supplies for her queer army.
-
El Legado de Atena by Ulti_SG
Fandoms: 聖闘士星矢 | Saint Seiya Series, Shaman King (Anime & Manga)
15 Oct 2025
Tags
Summary
Tras la derrota de Hades un nuevo mundo comienza.
Los santos sobrevivientes deberán reconstruir el Santuario para la siguiente generación que defenderá la inestable paz que hay en la Tierra, ahora habitada por otras órdenes de guerreros que sirven a sus propios dioses. -
The Other Armand by silvertrails
Fandoms: Vampire Chronicles Series - Anne Rice, The Silmarillion and other histories of Middle-Earth - J. R. R. Tolkien, The Lord of the Rings - J. R. R. Tolkien, The Avengers (Marvel Movies), Interview with the Vampire (TV 2022)
16 Oct 2025
Tags
Summary
This comes after the twin fics about Rúmil and Armand, in the Coming From the Dust Series (modern times). I am adding the Armand from the TV series because I like him. Saelbeth is Elladansgirl character
I'll add more characters or relationships when necessary.
Series
- Part 9 of Coming From the Dust
-
Resurrection by Flesh and Blood by BMS, SylRyth
Fandoms: Harry Potter - J. K. Rowling, Star Wars - All Media Types
16 Oct 2025
Tags
Summary
Harry tried to escape the imposed future at the hands of Wizarding Britain. Seven years he tried to escape the trappings of a corrupt wizard society. Pushed through the Veil of Death he finds himself in a Galaxy Far Far Away. Will Harry be tangled in the machinations of a dead Nightsister? Will a lost Nightsister seek to build her order from the grave with the Master of Death?
-
The Dragon's Shepard by Lingfarshi
Fandoms: A Song of Ice and Fire - George R. R. Martin, Avatar: The Last Airbender (Cartoon 2005)
16 Oct 2025
Tags
Summary
When Iroh dies, instead of going to the spirit world, He is sent to the world of a song of ice and fire with a mission given to him via a mysterious being. He doesn't know much; all he knows is that there is someone out there, destined to save the world, who needs his guidance. But little does he know, something or someone has come after him.
-
Try to Stay at One Universe, X! by LumiNa00
Fandoms: ウルトラシリーズ | Ultra Series, ウルトラマンＸ | Ultraman X
15 Oct 2025
Tags
Summary
Strange distortions ripple across dimensions, pulling Daichi Oozora and Ultraman X into a conflict that stretches far beyond their world. Faced with impossible battles and trials that test the very bond between host and Ultra, Daichi must decide how much he is willing to sacrifice to protect the Light.
What begins as a mission of rescue soon becomes a fight for survival, as shadows rise and allies are forged in the most unlikely places. Across broken worlds and shifting skies, Daichi and X must hold fast to each other—because if their bond breaks, so does everything.
“A clash of worlds, a test of hearts—the Light will choose.”
-
Everything is Cool in Coolsville by Becky Rogers (RayAnn35)
Fandoms: Scooby Doo Where Are You! (Cartoon), The New Scooby-Doo Movies (Cartoon 1972-3), The Scooby-Doo Show (Cartoon 1976-8), What's New Scooby-Doo? (Cartoon)
16 Oct 2025
Tags
Summary
Becky and the gang are headed back from a mystery taking a much-needed break
Series
- Part 13 of Those Meddlin Kids
-
The soul of Determination. MLP by therandomreader1009
Fandoms: My Little Pony Generation 4: Friendship Is Magic (Cartoon 2010)
16 Oct 2025
Tags
Summary
y/n is the soul of determination. They've traveled a lot to get here, going through all sorts of universes and such, but now they've found a very peaceful world and plan to stay here for the rest of their "life". However, they are foreign to this world's magics and way of nature. How will this world react? Can they find a place to fit in? And most importantly, how will they get a body of their own? All this and more is coming now.
A slight warning, the plans I have for y/n makes it so we can't have this world be the normal MLP Friendship is Magic world. So we're gonna need to make the characters of this world anthro, if that's the right word.
-
Syupidass Portal/Epic the Musical Crossover Fic by Cyph3r11
Fandoms: EPIC - Jorge Rivera-Herrans (Albums), Portal (Valve Video Games)
16 Oct 2025
Tags
Summary
Odysseus wakes up to find himself in a blinding labyrinth full of wondrous technology, given no choice but to trust the voice guiding him through. / Chell finds herself in ancient Greece, leading a crew of 600 men. How can she get back to her time when she can't understand anyone around her and can't access the technology needed to bring her home?
I may be the biggest nerd imaginable. but at least I'm kinda self aware about it and am kinda doing this for the bit.
- Language:
- English
- Words:
- 920
- Chapters:
- 1/?
- Hits:
- 1
-
Spectacular Showstar by StarVenux
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), New Dangan Ronpa V3: Everyone's New Semester of Killing, Sonic the Hedgehog - All Media Types
15 Oct 2025
Tags
Summary
After the mysterious disappearance of Wonderlands x Showtime, things are getting strange. A failed act of almost an attempted murder. It's hard to take anyone's words at face value. Nothing makes sense in the city of rain, and a mystery that is way worse than one can possibly imagine.