Sans AUs
137 stories
Given An Unwanted Second Chance by UndertaleFanatic981
UndertaleFanatic981
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(TW: unaliving thoughts and memories at the beginning. It gets better over time, don't worry! Trauma is difficult to overcome...) You didn't want a second chance. You didn't want to survive. You wanted the sweet release of death. But it seemed like the universe was far too cruel to allow you even that. It took away your memories, your free will to choose whether you live or die...hell, it took the one thing in life you owned! Your own name! And now it seemed like you had to live yet another cruel life, doing things you never wanted done to others. But...at least you could do things your way. Maybe this second chance wouldn't be so bad... (Reincarnated as Nightmare Sans, but unlike other stories, you have no clue what Undertale even is) (WE REACHED NUMBER 1 IN THE UNDERTALE TAG YOOOOOOOO) (9/13/25)
Radical Reincarnation (on hiatus!!!) by mothmommy42
mothmommy42
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when you were walking down the street truck-kun decided it was your turn to be reincarnated Met a God who gave you three wishes strangely enough you choose to be reincarnated as fresh
The Horror Of Reincarnation (I'm Back Again!) by LillianOwen
LillianOwen
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well you were Reincarnated as Horror sans but with a little secret also monster's killed each other off and now you are the only monster in your au (the reason I made it so you were the only monster in your au is so they didn't/couldn't interfere also I do not consider myself a author and this will be 'horrible')
A Currupted Starlight by ThatOneCringeGirl
ThatOneCringeGirl
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'passive' nightmare sans, as people called him, was trapped inside his own soul as 'currupted' nightmare sans controlled his body, spreading negativity throughout the aus. over the hundreds of years, passive has lost himself. the insanity has gotten to him. little did he know currupted has a reason to keep him trapped. he just wants to keep him safe.. but once currupted gets caught by passive's brother, dream and the creator ink, something goes wrong and the two get separated. dreams works his soul off in order to get the sane brother he once knew back. attacking and scaring off 'currupted' nightmare. as currupted continues to be attacked un the aus he tries to run to, he meets someone that's willing to listen. will passive get back to normal? will currupted get killed trying to fight for his life in the endless aus? let's see...! but I should warn you.. not all stories have happy endings~ [ WARNING! THIS STORY CONTAINS SENSITIVE TOPICS THAT INCLUDE GORE. ALL ARTWORK IS CREDITTED TO THE ORIGINAL ARTISTS. ]
The Skeletons and the Abandoned Cottage | Sans & Papyrus X Reader | AU Antiharem by xxBubbleyTea
xxBubbleyTea
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Against your better judgement, you decide to go to the grocery store on an early Sunday morning. With no evil girlfriend to get past first, your fate is sealed as the Great Papyrus is eager to befriend you and prove his superior pasta making skills! Before you know it, everything you know is changing before you. NO 👏🏻FUCKING👏🏻 SMUT🫵🏻 YOU HOMOS
My endless depression....•AU Sans X Depressed!reader• (Book 1 To Undersanity) by A-Many
A-Many
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I'm fine... (No I'm not...) I'm okay.... (I'm not okay...) put on a smile no one will see you hurting... (I'm breaking inside....) it doesn't hurt... (I'm used to it...) I'm... *crack* empty.... *crack* inside.... .... *************************************** Disclaimer: undertale-Toby Fox. Cover-Unknown. Warning: please if you are sensitive to any aduse,Gore,Depression etc, be cautious. book/plot-me
I'm a Sans ( au sans x reader x au papyrus ) by KittycatTDH
KittycatTDH
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This isn't a typical sans x reader(now papyrus x reader too). It's got more than that, well at least a different plot device first chapters will be about, just you(but it'll be good, I think so)and it's about you dear reader, you are now reborn as a Sans of a different au, but you don't have time to marvel how you're been reborn as your favorite character, because if you want to live you better focus because unlike frisk you're not coming back a second time when you die. (Short, and I mean short chapter, but this will ensure I can post more -w-) (Edit: this is context of your previous life is that you are originally female, aged 15, you had died during a car accident, you were sleeping in the back of the car, while you had a road trip to visit your family in Canada. The car had driven off the road because of black ice your father did not see in the dark of night. You heard the sound of your fathers scream then lead by your mothers then little brother's scream. You banged your head in the chair in front of you making you pass out, and when you open your eyes you had found yourself be popped out, but you didn't know that at the time. Art always be done by me. Edit: discontinued
A Killer Life by FewCafe
FewCafe
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adopted story. original by @Mijunaa :3 - The afterlife of a dead human that reincarnated into a Killer!Sans variant. The facade of the new owner of the body, could he keep playing along forever? or A person from our world, just an innocent civilian (or is he?), reincarnating as an alternate version of our well known Killer. - AUs and characters belong to their respective creators NOTICE: This story will start significantly darker than the original version, so if you don't like that, this is a heads up. Also no ships, sorry :P. WARNING: there might be gore in the future chapters. :) [titles with * means its mostly based off the original story] cover art by me :3
DISCONT | Omen [Undertale Multiverse] by DeadEnDead
DeadEnDead
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#3 out of 8k stories tagged as Ink ***REWRITE HAS BEEN POSTED! Please disregard this version ^^