Undertale Stories

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...

Fresh is Admin of the Multiverse!? This can't end well ... or can it? This is an alternate universe - er, multiverse - where Fresh is responsible for the monitoring and...

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...

It has been 10 years since the monster broke free from the barrier, and since then monsters and humans live together in peace. But for some reason, monsters have somehow...

Rewards: #1 Crossmare #1 IN UNDERTALE?!?! ARE YOU SERIOUS?!?! *** There wasn't a creature in the entire multiverse quite like Nightmare. Most viewed him as an insane ove...

#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...

Dream always felt the weight of expectations on his shoulders and they've only grown worse now that he's a Star Sans. Save this AU, rescue that person, stop Nightmare ov...

(TW: unaliving thoughts and memories at the beginning. It gets better over time, don't worry! Trauma is difficult to overcome...) You didn't want a second chance. You...

After commencing the neutral genocide path, "(Y/N) (L/N)" regrets slaying all the monsters and decides to start again, with a new objective in mind: Free all m...

It's only been a few years since monsters have been released from their underground prison. In some towns, monsters are welcomed with open arms. Others? Not so much. Y/N...

I was just a 19 year old, living my mundane life, until I died... and was REINCARNATED!? And not only that, I was reborn in the famous videogame release in 2015 Undertal...

Passive has never had a real friend other than his brother before. So what would happen when he finds himself in a world where friendship is magic? You can lead a horse...

Thanks for the votes and comments, love yous! ♡ The reader is the mother/mother figure to a specific Sans AU. This is not romantic nor is it a kink. Most of these onesho...

I got reincarnated into an Undertale Au that I made called Inclinetale ... Yup that's it, oh and I guess I have a twin now.

(Y/N) was a monster, no mistake about that. Well, actually, a lot of other monsters thought she was a human. After all, she did look human. Yet, she was able to convince...

Your names (Y/N). Your an adult, well, not until you landed in a white void. You were now a cute smol child. Seriously your shorter than Sans and Frisk. Jesus Let's s...

What if someone in our world becomes fresh sans? --- Story Status: [✴️Ongoing] |⚪Unedited⚫| ｡☆✼★━━━━━━━━━━━━★✼☆｡ Impressive Ranking: #128 out of 47.9k - Undertale | ⊙.☉ ...

Yup! They're back! A thing I started back in my older account UndertaleKyannaKitty. They're your siblings now! Cute, edgy, as much angst as you want, sad-whatever! Reque...

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...

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...