Undertale Stories

1.2K Stories

An Error's Doll by EroseWisp
#1
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...
Reborn as Error by Kiwi_Seal
#2
Reborn as Errorby Kiwi_Seal
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...
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...
Inked strings┆Error x Ink┆✓ by InksHideaway
#4
Inked strings┆Error x Ink┆✓by Ink . Fizz
Error and Ink don't talk that much, but they don't fight either. Ink kept Paperjam a secret from everyone, and revealed it to his most trusted friends first. After that...
Completed
You and Your Bitty Pals by Blueprint15778
#5
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...
I'm...swap gaster? by KarmaAkabane425
#6
I'm...swap gaster?by Karma Akabane
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...
Undertale-Malereader X Female Chara and Frisk [Completed] by Possibly-a-Unique_Na
#7
Undertale-Malereader X Female Char...by ʕ•̫͡•ʕ•̫͡•ʔ•̫͡•ʔ•̫͡•
Undertale Fanfic-Male Reader X Female Frisk and Chara Genre:Fantasy,Music,Lots of Dialogue and Character Development Alternate Timeline from the first book Fresh Start...
Completed
Error's New Family by lostabandonedsoul
#8
Error's New Familyby Just Another Lost Soul
Error was badly injured in a fight against Ink and Dream. In his attempt to escape, he falls through a portal to Undertale just as the world is about the reset. The uni...
Male reader x UNDERTALE [FINISHED] by Simon-san
#9
Male reader x UNDERTALE [FINISHED]by Simon
With no memory of your past, you find yourself in the underground. Your path to regain memory will be as eventful as it comes but try not to dive in the abiss...
Completed
Under the Veil by Poplasia
#10
Under the Veilby Poplasia
Sans has gotten himself stuck in the void between worlds in a successful attempt to stop the resets of his timeline. He's not sure how long he's been chillin' alone ther...
Into The Underverse by UndertaleFanatic981
#11
Into The Underverseby Purple
Y/N wasn't anyone special. With 21 years under her belt, she went through life like anyone else. Until she was picked out from the rest. Read your way through the Underv...
A Trio of Misfits | Bittybones story by Sabinarius
#12
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...
Sans AU One-Shots by PricklyHedgie
#13
Sans AU One-Shotsby SilverSnake
Do you love Sans? How about his AU versions? Of course you do, that's why you're reading this. So if you're looking for some X Reader oneshots with your favorite Sans, I...
Reborn As Error's Mom by DancingAce1
#14
Reborn As Error's Momby DancingAce1
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...
Y/N the Creator (Alphatale Fanfic) by DynamicCiocea
#15
Y/N the Creator (Alphatale Fanfic)by DynamicCiocea
An Undertale fan from our world gets reincarnated into the Undertale Multiverse. Will they travel the Multiverse in search of allies? Or will they help with the knowledg...
To become a parasite by KarmaAkabane425
#16
To become a parasiteby Karma Akabane
What if..someone became the same parasite that was fresh? Not as the skeleton, but the parasite, the thing is, when this parasite gets memories of another life and their...
A Fresh Start by SugarTeA636
#17
A Fresh Startby -SugarTeA-
An adult, who didn't really know much about the different multiverses/universes that were created by the undertake fandom, died suddenly in a car crash. Her last thought...
Fresh New Antivirus by Hidden-Ajinn
#18
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...
Multi-Coloured Soul (Sans Au x OC story) by MLCalloway
#19
Multi-Coloured Soul (Sans Au x OC...by MLC
There are two known guardians that watch over and protect the multiverse. Such as Undertale, UnderSwap, UnderFell, etc. These two guardians are named Ink!sans and Error...
Reincarnated as nightmare sans from Dreamtale by nelliesheerin
#20
Reincarnated as nightmare sans fro...by Karina Sheerin
A women who loves children dies and is face to face with the decision to reincarnate as nightmare sans if she allows herself to be Karmas chosen child. 'Fgod error belon...