Fellswap Stories

What if someone from our world died knowing a lot from the undertale and their multiverse/underverse? What if that person also knew about the balance and didn't creat to...

What if..someone from our world was reborn as fellswap sans? But an accident when he was young leads to becoming blind for a long time and papyrus feels guilty about not...

Hi guys! First of all I should mention that the story pic isn't mine and of course Fellswap belongs to its original creator. A young hiker, Y/N gets lost and accidental...

I was reborn as sans from my own made up au. How did that happen? I have no idea. Luckily I was still a kid so I didn't have to act like how I made sans to act like but...

this is a story about a girl who finds little bitties who were abandoned and takes them in little does she know that its harder than she thought and that the bittys won'...

Geno is a lonely thief, resident of a small sea village. His past is covered in darkness. Somehow he can't recall who he was or his parents. He only had his 2 younger br...

You are a introvert who loves undertale and multiverse and loves to play video games and listin to music. What will happen if one day you meet the skele-bros of differ...

What if two brothers somehow end up in their own story as the sans and papyrus that they made? They called the story starfell, mostly because everyone in the story is li...

Having little to no memories on what happens, you wake up to find two skeleton brothers who look awfully similar to yours. Confused and slightly disoriented, you later d...

What if someone from our world became the multiverse? Well everything is not likely to stay the same at all.. (Things will be different even possible personalities or a...

(Got ranked #607 in fanfiction) This is about the cherryberry ship. Red is just standing around one day whenever Blue randomly pops out nowhere in to his life and won't...

Who thought that one day someone would break into your house and slice your neck in your sleep? Well, that was what happened, right before you were integrated into a shi...

What if someone from our world was transported into Swapfell sans as a second personality while the sans was just a mere babybones? (Different things, different personal...

She's been here too long, drifting through a space devoid of time and reason. Speaking to ghosts long gone and echoes of her own voice, a lesser being would have gone ma...

Just some Sans au zodiac signs.

(DISCLAIMER: THIS IS AN UNDERTALE AU) Allow me to describe this in the simplest way I can. There is a fanfic-like covering, but with a much darker, twisted undertone. S...

Alex falls as the 8th child. Will he be okay? Or will he die to the monsters? **************************

You got stuck in another persons body. But their ghost is with you! You were told to go to the new highschool. You met skeletons! Then bla bla bla bla bla just read...

You can make a request for the one shots stories I'll probably make more parts but I'll also have other characters as the main characters in different parts. Like this f...

(Y/n) finds herself in a bit of pickle when Ink Sans explains to her about the condition of the Sanses of the multiverse. No matter what, she is determined to help Ink...