Fellswap Stories

(As far as I know, no one has made a story about naturetale like this so..and the only reason why I writing one like this is because of fatal error part 5? Or part 4, go...

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...

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...

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...

(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...

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...

(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...

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...

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 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...

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'...

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...

Y/N, a 20-year-old ((Insert gender)) in the city below MT. Ebott, who gets fired the day they were going on MT. Ebott and they didn't know going up this mountain would c...

Undertale Sans... Underswap Papyrus... Storyshift Chara... What could go wrong?

Just some Sans au zodiac signs.

yup. it's another one-shot book. also please note that the first stories are not my finest. I've tried fine-tuning them, but it's not going great. So humor me and keep r...

Here is a collection of oneshots I write in between my other stories to practice some character's personalities. I will not be taking requests and there won't be any spe...

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...

The swap brothers stubble upon not one but two other skeletons. Both in serious condition Who are they and where do they come from ? Underfell,Underswap and Swapfell doe...