Popular universes and concepts that have gained traction in fan fiction

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What is fan fiction?

Fan fiction is a form of creative writing where fans of a particular book, movie, TV show, or other media create their own stories using the established characters, settings, or themes from the original work. These stories are usually shared online within fan communities, ranging from short stories and novellas to full-length novels. Fan fiction allows fans to explore new plotlines, relationships, or alternate universes, providing an outlet for creativity and imaginative storytelling inspired by their favourite works. There are several popular fan fiction universes and concepts that have gained traction.

It is important to note that fan fiction is unofficial and not endorsed by the source material’s original creators or copyright holders.

Here are some popular fan fiction universes and concepts:

Hogwarts AU:

Inspired by the Harry Potter series, this alternate universe features fan fiction set in the magical world of Hogwarts School of Witchcraft and Wizardry.

Authors often explore different scenarios, pairings, and character dynamics within this setting.

Soulmate AU:

This universe revolves around soulmates, where individuals are destined to be connected uniquely and profoundly. It explores the journey of characters finding and recognizing their soulmates, often incorporating themes of fate, love, and destiny.

Superhero AU:

This universe takes existing characters from superhero franchises (such as Marvel or DC Comics) and places them in different scenarios or alternate versions of their stories. It allows authors to explore new dynamics, relationships, and conflicts among these iconic characters.

Coffee Shop AU:

Set in the cosy environment of a coffee shop, this universe focuses on the interactions and relationships between characters who frequent or work at the establishment. It often portrays a slice-of-life setting with light-hearted romance and character development.

High School/College AU:

These universes reimagine characters from various fandoms as high school or college students exploring their lives and relationships in an educational setting. It allows authors to delve into coming-of-age stories, friendships, and romantic entanglements.


Omegaverse is a popular subgenre of fan fiction and original fiction that revolves around a hierarchical society based on the dynamics of Alpha, Beta, and Omega individuals. In this universe, Alphas are dominant, Betas are neutral, and Omegas are submissive.

The dynamics often involve romance, power dynamics, and reproductive instincts. It has gained significant popularity within certain fandoms and has inspired numerous stories and fan works.

These are just a few examples, and many other imaginative universes and concepts have captivated fan fiction writers and readers. The beauty of fan fiction lies in its ability to reinterpret and expand upon existing stories and characters creatively, opening up a vast landscape of possibilities for fans to explore.

This article is written by:

Meghan is a freelance writer and a blogger.