Undertale Stories

Cover image made by me. Someone meets their end too soon and meets someone who gives them another chance to live a more fulfilling life. One that they would enjoy despit...

TW: Swearing and slight gore Y/N reincarnates in the anti-void as a Voice... Will he befriend error or will they make them hate their guts? And will they meet other peop...

You didn't have a bucket list or anything, but you wished you could've at least read a few more fanfics or done literally anything fun before dying. Oh well, at least yo...

#1 of 61.7k tagged with Undertale 12/06/24 After drowning as a human, Ashe reawakens as a DustTale variant of Sans. With his ghost Papy helping keep him from falling int...

Falling into a world, where monsters only care about killing all humans, Frisk has to try and escape. But with barely any friends, and with each death comes a new flower...

What if someone became papyrus from underswap? What if they gave their brother more freedom? What if they were the one that error kidnapped instead of sans? (Things wil...

A surprisingly wholesome story? But obviously super kinky sex a lot but it's still sweet.

Dear, Nightmare, Cross, Error, Dust, Horror, Killer, Lust, Reaper, Geno, Ink, Dream, Blue Hey guys, It's me...Sci, So uh, I've just discovered something really cool. And...

Well to start off, I'm just a teenager and I died in my sleep and was reborn as a skeleton, who is supposed to be error sans mom?...*stares at the cute bundle of cutenes...

What if someone died and became the tree of feelings from dreamtale? Well things won't stay the same, that's for sure. (Different everything etc, different personalities...

At a genocide run Sans unexpectedly wins against ¿Chara? and something strange occurred, the timeline was thrown into chaos. As a result of this chaos, Sans unknowingly...

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...

Yeah sorry gained an idea on if someone became swap Gaster Also they may be apathetic or just confused on their feelings and MAYBE Autistic, I may be a bit wrong on ap...

What if sans the funny skeleton was transported to Re:Zero? this fanfic answers that question, what will Sans do? how will he adapt to this new world? We'll just have to...

What if someone from our world became dream on the first day they were made and were determined to not lose their brother to corruption like the original dream did in th...

Error can take it no longer. After centuries of Pain and suffering, Error no longer cares what happens to the people who caused him pain, and now wants to leave the plac...

The multiverse decided, "Ayo, Imma need to make a whole other living thing to handle this Balance shit yo." Though there are restrictions, your boi is out in t...

Dom! Fell x Sub! Sans - The description ^ says everything

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...

Since there's not enough x bitty reader stories out there. You are a stray bitty who ran away from your last abusive owner and run into someone who will change your...