#1
'Til When Will We Part? (Reaper!Sa...by docemoon145
A crack opens in a breaking universe and Death peeks through to the other side. It seems like this "code" thing hasn't been doing it's job, and there's someone...
Completed
#2
DISCONTINUED (Rewritting!) - Just...by Blue Violet
Geno has a breakdown after another failed attempt at convincing the Sans in the current timeline to erase it and starts sending attacks all over the Save Screen.
Unfortu...
#3
a million years and a thousand mor...by minx
Geno is supposed to steal something from the vampire kingdom for ink.. bad idea..
#4
DustX [Underverse Fanfiction]by Quack Quack
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 a...
#5
WHAT'S WRONG? IT'S JUST A GAME. (M...by Code-Cipher
Y/N gets isekai'ed to an Undertale multiverse. He becames the embodiment of Manipulation and Control. As he does not want to believe he died before, he becomes someone w...
#6
Chosen falls for a pirate. An Afte...by so!'raisa'nsational
Geno is a lonely thief, resident of a small sea village. His past is covered in darkness. Somehow he can't recall who he was or his parents. He only had his 2 younger br...
#7
Reborn as fellswap san and now I'm...by Karma Akabane
What if..someone from our world was reborn as fellswap sans? But an accident when he was young leads to becoming blind for a long time and papyrus feels guilty about not...
#8
A Reaper and a Glitch -A Destructi...by HappyWriter62
I'm going to experiment with this one. I have a better understanding of Geno becoming Error in the fandom and want to toy with it a bit. What if Geno had Goth at the tim...
Completed
#9
Tsundere Much? (Afterdeath)by Kyle Broflovski
After the Christmas party, Geno thought he'd never get to see Death anymore. Boy was he wrong!
After a couple of chilling moments and heartfelt scenes, something happens...
Completed
#10
~•Cursed lovers•~|Afterdeath story|by WerewolfSoup
In a far far away kingdom, Where magic has been band, and those who used it have been sentenced to death lived a king with two sons. Said king was blinded by his hatred...
#11
Au Sanses x Mother Reader Oneshots...by INKY
Thanks for the votes and comments, love yous! ♡
The reader is the mother/mother figure to a specific Sans AU. This is not romantic nor is it a kink. Most of these onesho...
#12
AfterDeathby Introvert_Kid
Geno is sick and Death comes and takes care of him.
Cover picture belongs to me.
Geno belongs to loverofpiggies.
Death/Reaper!Sans belongs to renrink.
#13
Becoming an errorby Karma Akabane
What if someone from our world became error and didn't destroy au's and left that for nightmare and his gang and claims au's?
( different things including personalities
#14
Light or dark? Bad sanses x child...by Leah ☔︎︎
Y/n was and/or is a very sweet child, unfortunately for them they weren't treated very well by their mother or father, Y/n was abused and didn't have anyone. Fortunately...
Completed
#15
What Remains (DestructiveDeath)by Kyran Wolfe
Reaper knows. He knows that Error is Geno. He also knows that Error doesn't remember him. What they had. Who he was. He wants so desperately to remind him, but Error wou...
Completed
#16
Siren || Afterdeath ||by WerewolfSoup
Geno is the Captain of one of the most feared pirate crew in the seven seas along side his Quartermaster, or first mate as some call him, Error and Fresh, the Master gun...
#17
Evolution of a Reincarnation by AsterCatcher
I survived, then lost.*
I lived and loved.*
I lost, but won.*
I survived and loved.*
I lost, but survived.*
I lived, but was lost.*
Can I find myself again?
I was reborn...
#18
Hidden for so Long (Sans AU x Read...by Just Here & Thinking
Please check out the remake of this story.
Long ago the earth was ruled by two races, Humans and Monsters. One day war has broken between the two races. After a long bat...
Completed
#19
Flirting with death [Reaper!Sans X...by Ace
REWRITING
You had always had a lot of health problems. It made your life fucking hell at times. At 6 years old you had been in a car accident and ever after that you got...
Completed
#20
Universal Surface Angel by Lithriel
Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a...
Completed