#1
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...
#2
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...
#3
Reborn In UNDERTALE!?by StelleFont
I was just a 19 year old, living my mundane life, until I died... and was REINCARNATED!?
And not only that, I was reborn in the famous videogame release in 2015 Undertal...
#4
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...
#5
Undertale Scenariosby In Wolf's Clothing
A series of semi-realistic scenarios including a handful of Undertale characters. In otherwords, stick around. ... Please.
Completed
#6
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
#7
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...
#8
Sapphire Judge (Undertale x BNHA C...by iiDollieFluff
Sans world gets reset and he finds himself transformed into a human girl in a world of heroes and crime. She, however, is all alone, her friends and brother all lost to...
Completed
#9
Interdimensional Infatuation (Sans...by Problematic enby
You sit in a room, it's pale, blue-painted walls, so pale they looked white. A voice spoke, telling you to make a choice, how did this happen?
Find love, heartbreak, dea...
#10
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...
#11
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...
#12
At Their Mercyby Dev
The multiverse had been perfectly balanced when the seven higher beings weaved it together. Through countless interferences, however, the balance has begun to tip, and s...
Completed
#13
Broken [Sans Aus x Reader]by Miss Lin
[ Sans AUs x Reader ]
This wasn't what you expected - this isn't what you wanted. You wanted to rest, to finally, finally breathe, relax. But apparently life had other...
#14
Undertale:Secretsby Comic
Sans has had an interesting past. A past that even his beloved brother barely even knows of. A past that he wishes could remain a secret. But when the questions start be...
Completed
#15
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...
#16
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...
#17
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...
#18
Skeleton+Vampireby Sora Tempest
Sans Wingdings. He's a laid back chill Skeleton. He's extremely lazy and intelligent. He has a younger brother named Papyrus who is the total opposite of him
Sans has a...
#19
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
#20
This life as Error Sans.by DaCoolest
⪼A life where our beloved [Reader/REDACTED] died a very.. 'Fun' death.
⪼upon realizing their death, they'd realize that they reincarnated into error sans, a character th...