Undertale Stories

1.2K Stories

Becoming ink sans from undertale multiverse!? by KarmaAkabane425
#1
Becoming ink sans from undertale m...by Karma Akabane
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...
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...
An Error's Doll by EroseWisp
#3
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...
+21 more
Reborn as the tree of feelings by KarmaAkabane425
#4
Reborn as the tree of feelingsby Karma Akabane
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...
Under the Veil by Poplasia
#5
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...
Lil Reader X AU! Sans, Chara, and Frisk by Tami-The-Writer
#6
Lil Reader X AU! Sans, Chara, and...by Tami-The-Writer
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...
Fresh New Antivirus by Hidden-Ajinn
#7
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...
Reincarnated as a Voice by IHamTiredAndBored
#8
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...
Reborn As A Dust Sans [Undertale Multiverse] by DeadEnDead
#9
Reborn As A Dust Sans [Undertale M...by DeadEnDead
#2 of 64k tagged with Undertale 7/04/24 After drowning as a human, Ashe reawakens as a DustTale variant of Sans. With his ghost Papy helping keep him from falling into...
Reborn As A Baby Bone? by DancingAce1
#10
Reborn As A Baby Bone?by DancingAce1
Y'know when I died, I did not expect to awake in darkness and then birthed as killer and nightmare sans baby bone. Also a little later when I was birthed, I found out th...
At Their Mercy by DevEmrys
#11
At Their Mercyby Dev
The multiverse had been perfectly balanced when the seven higher beings weaved it together. Through countless interferences, however, the balance has begun to tip, and s...
Completed
This life as Error Sans. by coolkidindahood
#12
This life as Error Sans.by DaCoolest
⪼A life where our beloved [Reader/REDACTED] died a very.. 'Fun' death. ⪼upon realizing their death, they'd realize that they reincarnated into error sans, a character th...
Reborn As Error's Mom by DancingAce1
#13
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...
Reborn As Lamia Killer Sans! by DancingAce1
#14
Reborn As Lamia Killer Sans!by DancingAce1
(The old story description, the tags, and the story category somehow got deleted- I already fixed it though. Anyways, so this is the new, shorter, story description!) To...
Daughter of Death  by ItsSwapPapyrus
#15
Daughter of Death by Teutonic
Cover artist: punny-puntasy ! (TOLD IN YOU/YOUR) A reaper, a few gods, and a bunch of skeletons. The life of a reaper wasn't boring to her, everyday she would gather s...
Scrubbing Out the Stains by broskiskillet
#16
Scrubbing Out the Stainsby ba115mcg33
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...
ClockTale an Undertale AU by fublle
#17
ClockTale an Undertale AUby Timer
"Hm?" Timer asks taking his wrist watch off, checking the time before taking out a screwdriver and pulling it apart. Nervous habit of his. The meeting between...
Prisoner...? (Bad Sanses x Human!Reader) by ShadowOfFandoms10
#18
Prisoner...? (Bad Sanses x Human!R...by ShadowOfFandoms
Y/N was a human from a brand new AU...which was practically nothing. They were eventually rescued by the Star Sanses...only to be taken prisoner by the Bad Sanses. What...
I am the classic by KarmaAkabane425
#19
I am the classicby Karma Akabane
Somehow...I've become a sans...and not just any sans.. I'm classic!? What the flip is going on!? Wait why are different sans and papyrus's showing up at my home? I didn'...
Filled with DEPRESSION. (Male Reader x undertale story) by ryumaki215
#20
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...