Undertalemultiverse Stories

Reincarnated as Killer Sans but a bit different. First getting reborn and then thrown into a trap AU. Too bed the MC is a genius. (Pun intantional) How that works while...

Cold. Everything was cold. And dark. I was so alone... how could I have wanted this? This couldn't possibly be better than before... the warmth, and the light, and the...

In a dying multiverse, the death of Nightmare and Error unintentionally creates a new entity; Whisper. Born of destruction and negativity, the new god is thrown into ano...

this is my and my only Au that i call "the real rulers" and its about bad sanses a star sanses fighting, geno who is trying to get this wrolds gods together, a...

Based off of Beauty and the Beast. You are living a quiet life when you are forced to flee into a forest to escape a forced marriage. While running, you stumble across a...

"It thrilled me... Filled me with fantastic terrors never felt before!" Before the events of Nightmare's cataclysmic terror of the 2nd Calamity, what smaller...

[!!PLEASE READ!! This book is currently under revisions, so some chapters are currently unpublished! I am currently fixing a bunch of stuff with the book that I personal...

"This is how it came to be. And now I can finally show you." I say to...myself? "Error, there is no time for this!" Ink screams at me. It's weird bei...

Once upon a star a wish was heard. "I wish I had a brother who would understand me, who would be on my side, who wouldn't betray me" But sadly the multiverse d...

An Undertale fan reincarnates as Papyrus, but with extra abilities that the Deities decided to set upon. With a few twists and turns, the MC goes through the adventures...

Just a bunch of undertale multiverse story ideas that anyone can adopt. If you do decide to use these ideas, please let me know as I would love to read them!!

It's the roaring 20's! You're alive and well and living great in your little apartment, which is always well kept, clean, and absolutely yours! Rent's cheap and the prot...

Want to hear my crazy stories about my OTP? This is a book filled with it. I present to you my one-shots of Sans x Frisk!

Lol this came to be cause of a comment in my reincarnation as ink sans story. So I'm doing it. I don't know much about ink papyrus but meh, this is fan fiction so what h...

Basically what the title says

Unbound and unforgotten, lies the Undertale Multiverse, forever in conflict. Follow the story of OAR!Dust as he tries to make amends and saved the multiverse from an unk...

Taking place after DUSTED, weeks pass by after Beelzebub has been defeated, and it seems like everything has now become peaceful, for a very long time it seemed, however...

This is a mha / bnha x Undertale fanfiction story. I have made my own OC that resembles me a little bit. There will be more details about him in the story. This is my fi...

Spectator, an amalgamation, find themselves having fallen into the place they originated from, the Void. When their code starts to betray them, turning into a clump of s...

The bad sanses were kidnapped, except for a now very weak Nightmare. Blue and Leo were also kidnapped by...some yellow chicken? I guess alternate multiverses are a thing...