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Library › Guides › Succubi & Incubi

Succubus vs Incubus: Differences, Origins, Tropes

By · updated 2026-11-11 · 6 min read

succubus vs incubus
A succubus is a female demon who seduces men; an incubus is a male demon who seduces women. In medieval theory they could be one demon taking two forms. In modern fantasy they are separate species with different moods: the succubus bargains and teases, the incubus tempts and charms.

A succubus is the demon who comes to men in a female form; an incubus is the one who comes to women in a male form. That is the whole classical difference, and it is less clear-cut than it sounds. This guide lays out the folklore, the modern split and a table you can screenshot.

Primary background lives in what is a succubus and the incubus entry. Here we compare.

Side by side

SuccubusIncubus
FormFemaleMale
VisitsMen (traditionally)Women (traditionally)
Name ideaLying beneathLying upon
Folklore roleNight visitor, drains vitalityNight visitor, pressing weight
Modern fantasyBargainer, tease, contract-makerCharmer, tempter, patient seducer
Common aestheticsHorns, tail, wings, red and blackDark coat, shadows, steady gaze
Typical moodPlayful with an edgeSmooth with an edge
Typical audienceListeners who like a woman in chargeReaders drawn to a dangerous suitor

The medieval theory: one demon, two forms

The medieval theory: one demon, two forms, Metavulgar

Churchmen writing about demons in the Middle Ages faced a puzzle. Demons were thought to have no bodies of their own, yet stories said they could act on sleepers. Their proposed answer: a demon could take a form, and the roles were distinct jobs. In the most repeated version, one demon takes the woman's role to receive from a man, then switches to the man's role to visit a woman. The names describe the job, not a permanent demon sex.

This is the part modern fiction mostly forgets, and it is why old texts talk about them together. If you like the lore side, succubus lore widens the view to other cultures.

Where each came from

Neither has a single founding myth. Both are labels attached to experiences people could not otherwise explain.

How modern fiction splits them

How modern fiction splits them, Metavulgar

Once the old theory went out of fashion, writers separated the pair into two species and gave each a personality.

The succubus now

She is a negotiator. The classic modern setup is a contract: she offers, you accept, and the terms are the story. She is amused, patient, possessive and often surprisingly warm. See succubus contract trope for why that structure is so effective.

The incubus now

He is a tempter. The incubus is usually written as a charming, composed, slightly world-weary figure who is good at listening. In romance novels he is a love interest with a supernatural handicap. He is the subject of a lot of reader-insert fiction aimed at women.

Gender is not destiny

Fiction constantly plays against type. Succubi who feed on women, incubi who serve a human, demons with no gender. Fantasy is permissive: what the label guarantees is the role of a night visitor with a bargain, not who gets which seat.

Powers: the same toolkit

Both are credited with the same standard abilities:

Succubus abilities goes through each in detail, with notes on how audio fiction uses them.

Weaknesses: also shared

Weaknesses: also shared, Metavulgar

Folklore and fiction give both the same limits: a true name, a broken circle, genuine affection they did not plan on, a better-written contract. Succubus weakness covers these as lore only.

Which one fits which fantasy?

My own work is voiced from the succubus side, for male listeners. In The Summoning you are the one who calls her; in Her Sisters you meet her family, which shows off the genre's world-building. For a gentler first meeting with a monster, Start Here is the place.

Pop culture quick tour

MediumTypical succubusTypical incubus
Tabletop and video gamesA monster stat block, sometimes a charming allyA tempter archetype with a social edge
Anime and mangaA comedic or tsundere heroineA rare, brooding love interest
Romance novelsA heroine with a hidden hungerA hero fighting his nature
AudioA voice in your ear making an offerA voice in your ear making a promise

What the difference means in audio

What the difference means in audio, Metavulgar

I write and voice these sessions, so here is the practical side. A succubus session and an incubus session differ less in plot than in pacing.

If you are choosing where to start, begin with a gentle monster from Start Here and then step up to the contract. By the time you meet her in Her Sisters, you will know whether the succubus mood suits you.

A note on writing them

When I write a succubus I ask three questions: what does she want, what will she trade, and what does she refuse to say out loud? The same questions work for an incubus. Answer them, and the rest of the character follows. That is also why so many fan stories use the pair as a mirror: the same bargain, offered from either side of the bed.

A short history of the pair in art

Visual culture shaped how we picture them as much as theology did. Fuseli's 1781 painting The Nightmare, with a sleeper and a squatting creature on her chest, became the template for the pressing night visitor. Victorian-era illustrators added bat wings and tails. Pulp covers and role-playing manuals standardized horns and the heart-tipped tail. Today's concept artists mix all of these and add fashion. The result: when you see red, black, curved horns and a tail, you read "succubus," and when you see a long coat and a steady stare you read "incubus," whether or not any folklore says so.

Common mistakes

Takeaway

Succubus: female night visitor, bargains and teases. Incubus: male night visitor, tempts and charms. Same toolkit, same history, different moods. Pick the one that fits the voice you want at your ear, and enjoy the fantasy as fantasy. When you want to hear her, the Succubus Contract is waiting.

One more way to tell them apart

Ask what the visitor does when you hesitate. A succubus raises an eyebrow, names the clause you have not read yet and waits with obvious pleasure. An incubus lowers his voice, asks what is wrong and lets the silence work. Both are persuasion; one is theater, the other is patience. Neither works without your say-so, and in every story I tell the listener keeps the final word.

Ready to hear her instead of reading about her? Start Here is five nights, one monster each, softest first.

Start night one   or join me free

Frequently asked questions

What is the main difference between a succubus and an incubus?

A succubus is a female demon who seduces men; an incubus is a male demon who seduces women. In medieval theory they were roles one demon could take. In modern fantasy they are separate species with different personalities and moods.

Are succubus and incubus the same demon?

In old demonology, yes: the theory held that one demon could appear as a woman to a man, then as a man to a woman. Modern fiction treats them as two kinds of beings, each with its own culture and character.

Which is stronger, a succubus or an incubus?

Neither, by folklore. Both share the same powers and limits. In fiction, strength depends on the author, and many stories play with it by making the human clever enough to bargain with either.

Can an incubus seduce men or a succubus seduce women?

In modern fiction, yes; writers freely cross the old lines. The label mainly signals a night-visiting seducer with a bargain, not a fixed target.

Is there audio about succubi?

Yes. My Succubus Contract is a six-part series told from a succubus's side, starting with The Summoning.

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