Best Epic Omegaverse (A/B/O) Fanfics
Omegaverse (A/B/O) fanfics over 100,000 words — the long-form treatment of the trope. Curated from AO3, ranked by kudos.
Top 13 Epic Omegaverse (A/B/O) Fanfics
Ranked by AO3 kudos. Each fic is tagged with omegaverse (a/b/o) and falls in the over 100,000 words range.
This War of Needs
by N1ghtWr1ter
All Clarke Griffin wants is to stop a war (and maybe get through her heat without suffering too much). All Commander Lexa wants is to protect her people (and maybe forget the tragic death of her mate for a few days). When a sudden burst of acid fog leaves them stranded together in an isolated bunker
A Place to Call Home
by the_madame21
Oikawa Tooru doesn't need an alpha. He's doing fine all on his own. And the past four years of being a single mother have proven that this is exactly what he wanted from life.Of course, life has a way of not always going as planned.
Primitive Liars
by Nilahxapiel
Light is a being of intellect, not of instinct; however, he may be starting to understand that the two are not mutually exclusive. While he struggles to define himself in an unjust world, a new Kira holds society - along with a couple other valuable things - hostage. (Omegaverse AU. L/Light, Matt/Me
Sugar & Spice
by Kb_Ellen
Hyunjin isn't the typical alpha. He's gentle, reserved and quiet. So what does it mean when he spots the famous omega the whole campus has been talking about and his alpha growls "Mine"?ORHyunjin is whipped from the very start and everyone is a little obsessed with Felix.
I want to breathe in the open wind (I want to kiss like lovers do)
by Nehm
The day that Mike Wheeler presented as a prime alpha was also the day that everything changed for him and Will. OR Will and Mike make a promise to each other to never abandon each other no matter who they present as and what happens. But when Mike presents as an alpha, he apparently does everything
I will always follow
by Arminiae
Different, that was the only word he could think of, different and wrong and somehow… numb. After pretending to be a beta for so long, monitoring his every step and hiding in plain sight, Tomioka Giyuu was finally on the edge of the precipice. Either he told the truth and faced the consequences, or
Seared into Skin
by Vagabond
Anthony Crowley has avoided courtship like the devil, refusing to give into high society's idea that an Omega needs to be married by a certain age until his parents decide to remove his choice. He soon finds himself married off to a gentle, soft-spoken Alpha. Lessons and love ensue and Crowley reali
It's Just A Game
by kissmysass
Iwaizumi Hajime has been working most of his life toward being in division 1 volleyball as an outside hitter. It took him a long time to make it because power positions are rarely given to Omegas so he will put up with anything to remain there once he makes it. Even if that means having to put up wi
Honeysuckle Huckleberry
by Juniper2Moon
"Dennis slowly blinked and rubbed his eyes, rolling onto his back. Late afternoon sunlight was streaming in through the windows, lighting the room in a golden glow. Glancing around him, his heart sank when he realized his alphas were nowhere to be found. He did however, notice a few streaks of dryi
Heir to the Fissures
by doughnut_mind_if_I_do
In one timeline, Viktor made it home to his family.In another timeline... he didn't. A retelling of 'Child of the Lanes' where things are much, much different.
One in a Million
by Anonymous
Single, 25 year old Jace wasn't ready to find out that he was pregnant. He really wasn't ready to find out that he had an extra uterus. He DEFINITELY wasn't ready to find out that each uterus had a baby inside, which apparently meant that they could have come from two different hookups.But now he's
Doyoung's Guide to Existing
by Anonymous
As time passes and his kids grow, Doyoung is still learning the ropes of life. But as Haechan tells him, he's keeping it 'real.'
My Pretty Boy
by mcsosa
Jongho is captivated by Yeosang from the moment they meet, drawn in by something stronger and far more primal than attraction alone. What begins as reverence becomes a careful, aching dance between an alpha whose devotion skirts the edges of heaven and hell and an omega who keeps choosing the same p
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About Omegaverse (A/B/O)
A fanfiction-original setting in which people have a secondary designation — alpha, beta, or omega — with associated biology, instincts, and social hierarchies. Omegaverse worldbuilding varies enormously by author, and stories use the framework for everything from romance to pointed social commentary about bodies and autonomy.
The genre's appeal lies in its built-in tensions: instinct versus choice, biology versus identity, and societies whose rules characters must navigate or defy.
Common scenarios: An omega executive concealing their designation in an alpha-dominated industry, or a bonded pair negotiating what their bond means beyond what their biology dictates.
About This List
This list of 13epic Omegaverse (A/B/O) fanfics spans 2,840,118 total words. Kudos range from 77 on the newest entries to 10,468 on the most established. 46% are marked complete — check the status flag before committing to a longfic. The most common rating is Explicit (11 of 13 fics).
Recurring tags across this list: Omegaverse · Alpha/Beta/Omega Dynamics · Alpha/Omega.
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