Undertale Stories

1.2K Stories

Becoming papyrus from underswap  by KarmaAkabane425
#1
Becoming papyrus from underswap by Karma Akabane
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...
You and Your Bitty Pals by Blueprint15778
#2
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...
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...
WILTED: A Sans X Child Reader Story by Yusuka-chan
#4
WILTED: A Sans X Child Reader Storyby Yusuka-chan
[I have decided to do what I always wanted 😄😄]:some people put warnings for these so.....CHILD ABUSE IS DISCUSSED You were, thought to be mute and was horribly abused...
Completed
Reborn As A Dust Sans [Undertale Multiverse] by DeadEnDead
#5
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...
I am the classic by KarmaAkabane425
#6
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'...
I'm...swap gaster? by KarmaAkabane425
#7
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...
Reborn as Error by Kiwi_Seal
#8
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...
Becoming dream from dreamtale  by KarmaAkabane425
#9
Becoming dream from dreamtale by Karma Akabane
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...
Friends Meeting Enemies by AngelGold238
#10
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...
Naturetale : reborn as lavender  by KarmaAkabane425
#11
Naturetale : reborn as lavender by Karma Akabane
(As far as I know, no one has made a story about naturetale like this so..and the only reason why I writing one like this is because of fatal error part 5? Or part 4, go...
Undertale x Infant!Reader by raac24
#12
Undertale x Infant!Readerby ~Raac~
Taking a journey through the Underground seems fun to experience and to Fight or Act through. But is it really fun when you're just an infant? Will you ever make it back...
Completed
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...
A Trio of Misfits | Bittybones story by Sabinarius
#14
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...
I Want To Forget (Killer Sans x Reader) by OreoDaSkeleton
#15
I Want To Forget (Killer Sans x Re...by ~Oreo~
Want to talk about falling into the wrong place at the wrong time? Y/N definitely scored big time on that one. One moment she's falling, the next she finds herself trapp...
Sans Starting Life In Another World From Zero by Cartinel56
#16
Sans Starting Life In Another Worl...by Cartinel
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...
To become a parasite by KarmaAkabane425
#17
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...
Scrubbing Out the Stains by broskiskillet
#18
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...
Completed
Reborn as sans from UnderSoul  by KarmaAkabane425
#19
Reborn as sans from UnderSoul by Karma Akabane
I was reborn as sans from my own made up au. How did that happen? I have no idea. Luckily I was still a kid so I didn't have to act like how I made sans to act like but...
AU Sans x Reader oneshots 2(Requests closed) •~complete~• by ReaderReads10
#20
AU Sans x Reader oneshots 2(Reques...by (ง •̀^•́)ง✧
I couldn't just leave you guys there! Enjoy the book! Feel free to request