Undertale and It's au's
200 stories
A Jaded Emerald [NOT LOOKING FOR ART COMMISSION] by KTama20
KTama20
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Abandoned on Mt. Ebott at the tender age of five, young Harry's unsurprisingly died, but Death's always had a weird relationship with his variant... Meanwhile, before Flowey's revival as souless talking flower, Sans makes a discovery under the mound of snow, Papyrus has always wanted to be a big brother anyways. *Edited Summary (29/09/2025)
DustX [Underverse Fanfiction] by DuckQuackWhatever
DuckQuackWhatever
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He wakes up in a white place... (Man wakes up as a alternate version of Cross Sans,neat,the cover is mine..Cross Sans is not mine or any Sans you will see besides this alternate version of Cross) Got first place in Bittytale...cool Got first in Fresh!Ink..cool Got first in Geno!Sans...cool Got first in Fresh!Sans...cool Got first in Underverse..cool
Reborn into a new world  (bonegod sans) by edris34
edris34
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You reborn as a sans I created, when You died in a accident, You reborn into a new world where you have to fight to survive. Will You bring peace or destruction? Ship read Find out
Reborn As A Dust Sans [Undertale Multiverse] by DeadEnDead
DeadEnDead
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#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 into suicide a second time, Ashe slowly learns he can have fun, and what's more fun than fucking with the Star Sanses who have totally mistaken him for the 'evil' Dust Sans?
Reborn as Classic Sans (But Different) by SarahWingDing
SarahWingDing
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Y/N the Creator (Alphatale Fanfic) by DynamicCiocea
DynamicCiocea
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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, fighting against the Gods of Alphatale? The writing in the first chapters is pretty bad, but it gets better. Reader x SS!Chara in the later chapters. This is my first book and English isn't my Mother Language, but I'll try my best. This story takes place in the Alphatale Multiverse. It is not the same as the original Multiverse, so some things may be different. Published: 12 August 2023 Completed: 20 January 2024 I do not own any pictures shown in this book. The cover image is from productionsoxy on Aminoapps. ---------------- #1 in reincarnated out of 1000+ (2 September 2023) #1 in cross out of 1000+ (8 September 2023) #1 in error out of 1000+ (29 September 2023) #1 in errorsans out of 1000+ (1 April 2024) #1 in ink out of 1000+ (7 November 2023) #2 in multiverse out of 1000+ (12 September 2023) #2 in dust out of 1000+ (1 April 2024) #3 in sansaus out of 1000+ (28 September 2023) #5 in undertale out of 1000+ (26 September 2023) #5 in infected out of 1000+ (17 November 2023) #5 in sans out of 1000+ (9 November 2023) #6 in undertaleaus out of 1000+ (29 September 2023) #9 in sansau out of 1000+ (12 October 2023) #26 in reborn out of 1000+ (9 October 2023) #29 in nightmare out of 1000+ (17 November 2023) #101 in dream out of 1000+ (17 November 2023) #1 in 404 out of 205 (25 August 2023) #1 in alphatale out of 93 (10 September 2023) #1 in diety out of 145 (19 September 2023) #1 in kingmultiverse out of 25 (22 September 2023) #1 in alphasans out of 19 (17 November 2023) #1 in error404 out of 166 (27 December 2023) #2 in omnipotent out of 202 (9 October 2023) #2 in epicsans out of 124 (17 November 2023)
Reincarnated as a Voice by IHamTiredAndBored
IHamTiredAndBored
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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 people? Only time will tell. Hello, this is going to be my first book and idk if it's going to be good so meh :v This story was inspired by transported as a voice by Virus_bOi, I obviously do not own undertale and I don't keep up that much with the fandom, so some personalities might be different, but hey. I can just say that it's a different multiverse ¦ ] The cover image is from Shira Wolfiecute on tumblr
Reborn as Ink Sans...but different? by DancingAce1
DancingAce1
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First off, where am I? Did I get kidnapped or something? Wait a minute- is it just me or do I look like bones? Also what's with the two big paint brushes with me and why do I feel as if I have two extra limbs on me?
Reincarnated as Sans twin brother  by Sansdoll123
Sansdoll123
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The reader wakes up to a new life as a monster skeleton. In a new world, that's filled with monsters, humans, and magic. But instead of living their new life to the fullest, they will have to survive Gaster's experiments and war with humans. Just because Asgore became mad for absolute control over his citizens and the humans. Will the reader and his brothers find their freedom and a place to call home or die trying?
Creating new errors (Hunterverse) by SomeSpy
SomeSpy
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Error, a God of destruction. Always having to do what was necessary to keep everything in check. Though, not everyone seemed to agree on his doings and decided to place an end to it. But, when they did, Error didn't stay down.