Undertale Stories

1.2K Stories

You and Your Bitty Pals by Blueprint15778
#1
You and Your Bitty Palsby Blueprint15778
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...
Expectations and a Golden Stitch-A DreamError/Insomnia Fanfic by HappyWriter62
#2
Expectations and a Golden Stitch-A...by HappyWriter62
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...
Reincarnated as a Voice by IHamTiredAndBored
#3
Reincarnated as a Voiceby TiredAndBored
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...
GlitchDust by adamabyss12
#4
GlitchDustby adamabyss12
This is Glitchtale, but the beginning is different. Instead of Sans being his usual self, he turns into himself from Dusttale, where he killed all of the monsters and ga...
Completed
An Error's Doll by EroseWisp
#5
An Error's Dollby EroseWisp
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...
Filled with DEPRESSION. (Male Reader x undertale story) by ryumaki215
#6
Filled with DEPRESSION. (Male Read...by Ryumaki215
Something I've been thinking about making for a while now. I hope you guys can enjoy it! (Warning! Themes of suicide and depression are in here as well! If any of that b...
Y/N the Creator (Alphatale Fanfic) by DynamicCiocea
#7
Y/N the Creator (Alphatale Fanfic)by DynamicCiocea
An Undertale fan gets reincarnated into the Alphatale Multiverse. Will they use the knowledge gathered from their first life to their advantage? Or will they perish, fig...
Completed
Undertale AU Sibling Oneshots by CrowBorn666
#8
Undertale AU Sibling Oneshotsby CrowBorn666
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...
Completed
Au Sanses x Mother Reader Oneshots (Requests Closed) by _perplexing_
#9
Au Sanses x Mother Reader Oneshots...by INKY
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...
Reborn In UNDERTALE!? by Nova_The_Supernora
#10
Reborn In UNDERTALE!?by Nova_ Art_Maker
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...
Completed
Becoming Fresh sans by AmeliaForEli
#11
Becoming Fresh sansby LazyAmeliaforEli
What if someone in our world becomes fresh sans? --- Story Status: [✴️Ongoing] |⚪Unedited⚫| 。☆✼★━━━━━━━━━━━━★✼☆。 Impressive Ranking: #128 out of 47.9k - Undertale | ⊙.☉ ...
Friends Meeting Enemies by AngelGold238
#12
Friends Meeting Enemiesby Angel Gold
What if there was a multiverse where Error and Ink were friends? What if the voices were the creators? What if they went to the Fgod multiverse because the voices were b...
Fresh New Antivirus by Hidden-Ajinn
#13
Fresh New Antivirusby Hidden Ajinn
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...
Becoming an error by KarmaAkabane425
#14
Becoming an errorby Karma Akabane
What if someone from our world became error and didn't destroy au's and left that for nightmare and his gang and claims au's? ( different things including personalities
Lucent by Firehedgehog
#15
Lucentby Firehedgehog
They we're a child of the void, a Voidling. There soul fell into the void instead of the reincarnation cycle, curious they leave the void to learn of the outside. Yet...
Killed it! {Reincarnated as A Killer Varient} by coolkidindahood
#16
Killed it! {Reincarnated as A Kill...by DaCoolest
⪼Beaten up and betrayed, {Name} dies an unfair death because of their best friend. Having their life and their brothers whisked away in a flash. ≫They find that they inh...
The Animals Inside by animal-sans
#17
The Animals Insideby Paper
You are walking along a dark alleyway when you are ambushed and knocked out. In another universe, a young Sans is attacked and you both wake up in a white space with an...
Reborn As A Dust Sans [Undertale Multiverse] by DeadEnDead
#18
Reborn As A Dust Sans [Undertale M...by DeadEnDead
#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...
Mr.  Erratum by SleepyPersonHere
#19
Mr. Erratumby SleepyPersonHere
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...
A Trio of Misfits | Bittybones story by Sabinarius
#20
A Trio of Misfits | Bittybones sto...by Sabinarius
Bitty! US pap x reader x Bitty! US sans Our two little bitties have been through a lot, so what happens when they meet a human that's hurting just as much as they are...