#1
Lights Like Stars (Sans x Reader)by SebbyBear
It's been over a year since the Underground opened up and the monsters living under the earth swarmed to the surface in their thousands. The human and monster governmen...
#2
Undertale AU Sibling Oneshotsby CrowBorn666
Yup! They're back! A thing I started back in my older account UndertaleKyannaKitty.
They're your siblings now!
Cute, edgy, as much angst as you want, sad-whatever!
Reque...
Completed
#3
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...
#4
Soulbound || Sans x Readerby SilverSnake
When a situation with a dying human ends up with you absorbing their soul, you panic (like any unprepared monster would). Suddenly Undyne is hunting you down, so you rop...
Completed
#5
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...
Completed
#6
Lost And Found~ MafiaTale Fanficby Bug
In the business of human trafficking, mercy isn't a well known word. You and your crate mate, a child named Frisk, are obidiently waiting to be released to a 'master' wh...
Completed
#7
Hidden for so Long (Sans AU x Read...by Just Here & Thinking
Long ago, two races ruled the Earth: HUMANS and MONSTERS. One day, war broke out between the two races. After a long battle, the humans... wait no, the monsters were vic...
#8
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...
#9
Reincarnated as Sans twin brother by Sansdoll123
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 full...
#10
Ashes to ashes Dust to Dustby Hello there
I want to make a story about Dust tale sans. however I want to give him a whole new personality, background and even powers. somethings will stay the same. but if your i...
#11
Wilted [ Sans x Flowerfell! Reader...by space sloth
You were afraid.
For the first time in your life, you were truly afraid.
You weren't afraid of the never-ending darkness that had now consumed you. You weren't afraid of...
Completed
#12
Can I Stay? (Underswap!Sans × Read...by Justmonika
[Prolong]
My name is (Y/N).
I have experienced many resets, so many I have lost count. The only people who remember are Sans, Flowey, and me.
The monsters down here are...
#13
The Skeletal Hero: Karmic Judgeby A_Toast
Complete!
The player has just finished fighting sans and has left him to die. As sans turns to dust he sees a flash of light before everything goes black. He then wakes...
Completed
#14
Ms. Teach (Sans x Reader)by rei
Y/n is a music teacher, known for making music, and/or covering music and songs.
Now, your working days at school are over, and decided to take a trip with your friends...
Completed
#15
Au sanses x Creator!Readerby GlitchyGachatuber
Finished
(Y/n) Owns a multiverse, What happends when the sanses from her multiverse meets her and fell inlove with they're own Creator?
Read this to find out >
#16
Bad sanses x readerby BlueberryTilapidaLV
Stalker sans x reader, simple. Along with nightmare horror dust killer and many more!
#17
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...
#18
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...
#19
Au Sanses x Mother Reader Oneshots...by INKY
Thanks for the votes and comments :] ♡
You, the reader, are the mother to a Sans! Funny idea how this came to be lol- But enjoy! All of these chapters are mostly request...
#20
Sans Aus X BSD!Child!Readerby Ein G. Pierce
What happens if Error happened to walk into the BSD Universe and meets the younger brother of Atsushi? Atsushi was unable to take Y/n with him when he was kicked out. Wh...