Best Mature Alternate Universe (AU) Fanfics
The 25 most-loved mature alternate universe (au) fanfics on AO3, ranked by kudos. Infinite creative possibilities - seeing beloved characters in entirely new contexts.
Top 25 Mature Alternate Universe (AU) Fanfics
Ranked by AO3 kudos. Every fic on this list is tagged with alternate universe (au) and rated Mature.
The Student Prince
by FayJay
A Modern day Merlin AU set at the University of St Andrews, featuring teetotal kickboxers, secret wizards, magnificent bodyguards of various genders, irate fairies, imprisoned dragons, crumbling gothic architecture, arrogant princes, adorable engineering students, stolen gold, magical doorways, atte
Divided We Stand
by KouriArashi
Derek is being pressured by his family to pick a mate, and somehow stumbles into a choice that they didn't expect and aren't sure they approve of....
One Dollar Yoda
by exclamation
Stiles is an unbonded spark, so he's been dealing with courting alphas since he was ten. It's gotten a lot worse since he turned sixteen. Some are assholes, some are nice, but Stiles hasn't wanted to spend the rest of his life bound to any of them. When Derek Hale shows up at his school, Stiles expe
The Necromancer
by Maeglin_Yedi
Harry Potter disappears when he is four years old and the wizarding world believes him dead. But when his name comes out of the Goblet of Fire, Harry returns in a storm of lightning; a grown man raised in a world of violence, more powerful than anyone could imagine, and the worst thing of all? He do
Too old to be this young
by Nadia_Castillo
He was smiling. At Tom Riddle. He was going to get murdered before the year ends, he just knows.Alternate universe/Post-Hogwarts. warnings: mature themes, drinking, swearing. An adult Harry Potter with all his knowledge and experience is transported to his 23yo body in a universe with no war.
(Maybe I Love You) We're Too Young For That
by orphan_account
If there’s anything Taehyung dislikes more than writing pop songs, it’s writing songs for Jungkook: rising idol, CF magnet, and one of the biggest douchebags Taehyung’s ever met. But hey, it pays the bills. russian
The Guiding of Death
by RayShippouUchiha
“Hades and Persephone reborn huh,” Fury states then more than asks, “no need to ask which is which.”Toni’s brows furrow even as dread begins to squirm to life inside of her.But before she can say anything, before she can open her mouth and set the record straight, she hears it.A murmur as loud as a
Soft Hands, Fast Feet, Can't Lose
by dolce_piccante
American Uni AU. Harry Styles is a frat boy football star from the wealthy Styles Family athletic dynasty. A celebrity among football fans, he knows how to play, he knows how to party, and he knows how to fuck (all of which is well known among his legion of admirers). Louis Tomlinson is a student an
when the right one comes along
by UglyGreenJacket
Hayden: Jackie is very jealous of your manny.Hayden: Says he’s incredible and that a bunch of the school moms are trying to get play dates with Violet. Shane: He is great.Shane: Kind of a menace, too, but Violet loves him, so I overlook some things. Hayden: Oh, I’m sure.Hayden: She also said he’s su
Night Changes
by proseandpulse
Shane is drunk, concussed, and hiding in a phone booth when he calls the only number he knows by heart. The man who answers is not Hayden Pike.
Relief Next To Me
by dolce_piccante
AU. What happens when a baker and a graphic designer meet via a very specific Craigslist post? Fate, friendship, food, and maybe more.
you are a paradigm
by 1electricpirate
Sometimes, only sometimes, when Sherlock is very far away and absolutely guaranteed not to return for at least three hours, John sits on the sofa and lets the tea make itself. In which John is (reluctantly) a wizard, Mycroft is (apparently) omniscient, and Sherlock is (surprisingly) oblivious.
Just Hold On (We're Going Home)
by kiaronna
Where Yuuri remembers the banquet, Viktor forgets, and Yakov Feltsman has his own plans.“I’ve been made aware of your recent break with Celestino Cialdini, and would like to offer you a trial period where you train under me, in St. Petersburg. There are only three conditions: you will board with ano
Thirty-Eight Days and Counting
by thecommodore_squid (orphan_account)
It didn’t escape him that Steve shared his assumed last name. “Are you gonna be my cousin?” Bucky asked dully.Steve frowned. “Husband, actually,” he said easily, holding up his left hand to show a typical golden band.Bucky scowled and closed the door.AKAAn AU in which Bucky is put in the witness pro
Wo Rauch Ist
by CAPSING
"Someone needs to write a ‘the fire alarm went off at 3 am and now the cute guy from the flat next door is standing next to me in his underwear’ AU"
love thy neighbor
by wincechesters
Lan Wangji’s new neighbor is obnoxiously loud, incredibly ridiculous, and a shameless flirt. He is also quite possibly the love of Lan Wangji’s life.
Below the Surface | SPY AU
by KiiraDraws
If there’s one thing Izuku never imagined happening to him after losing One For All, was to be forgotten. Now a professor at U.A. High, he spends his days teaching and his nights haunted by the life he left behind. He tells himself the quiet is enough, but the ache of his past—of failed dreams, lost
What In Me Is Dark, Illumine
by telelli
“Abashed the Devil stood, and felt how awful goodness is, and saw virtue in her shape how lovely: saw, and pined his loss."-John Milton, 'Paradise Lost' In September of 1942, Tom Riddle is a brilliant, bitter schoolboy on the precipice of becoming a monster. Already wearing his first Horcrux around
Fake Wedding March
by oldarchive (farozaan)
Minutes before Daichi is going to introduce his fiance to his parents, he gets dumped via text. So while he sits in front of his parents, trying to figure out what to say, an angel appears next to him.or: Suga pretends to be Daichi's fiance to save his ass.
I Fear No Fate (For You Are My Fate, My Sweet)
by vixleonard
Myrcella Baratheon always knew she would be married to a man for a political alliance. What she did not know was that she was going to be left in the North at 8-years-old to one day become the wife of Robb Stark and just how much it would change her life.
Waves Upon the Shore
by EmilianaDarling
Instead of Susan, it is Edmund that Caspian gravitates toward during the Pevensies’ second trip to Narnia. And events unfurl dramatically differently because of it.As it worked out, this fic could very easily have another title: “Five Times Caspian and Edmund Almost Kissed -- And One Time They Did”.
Flowers For a Planet
by esama
There are flowers growing in the Grey.
the days i prayed
by tremulousbird
Seongjoong Arranged Marriage AU.When his mate of almost ten years divorces him due to his infertility, Park Seonghwa finds himself back at his family home in utter disgrace. To prevent his family from being bankrupted by returning his dowry, Seonghwa must at all costs find a new match.But he is no l
The Soul Knows What the Heart Wants
by isthatbloodonhisshirt (wasterella)
“Holy—shit,” Stiles breathed, Bacon stopping in what he was doing, still staring at him intently, as if begging him to understand, for someone to finally understand. Stiles felt like he’d been electrocuted and he leapt out of his chair, kneeling in front of Bacon and grabbing at his furry face. “Hol
Everything's Made to be Broken
by weathervaanes
Everybody gets a name, inscribed in a color over the left side of their chest. It seems like a good system, guaranteeing that there will be someone who loves you, who you will get to love in return for years to come. The only problem is that that's not actually how it always works out.
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About This List
This list of 25mature Alternate Universe (AU) fanfics spans 2,544,362 total words. Kudos range from 6,341 on the newest entries to 25,009 on the most established. Nearly all (84%) are complete, so you can start any of them without WIP anxiety. The most common rating is Mature (25 of 25 fics).
Recurring tags across this list: Alternate Universe · Angst · AU · Alternate Universe - College/University · Mating.
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