Undertale Stories

1.2K Stories

The Path We Walk by Lunazul3000
#1
The Path We Walkby Aster
Aster Corvus Concord, now known as Sans Serif Gaster, was living a relatively peaceful life having reached the surface. Then it all reset. Now, after living through an e...
Reborn as Error by Kiwi_Seal
#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...
Under the Veil by Poplasia
#3
Under the Veilby Poplasia
Sans has gotten himself stuck in the void between worlds in a successful attempt to stop the resets of his timeline. He's not sure how long he's been chillin' alone ther...
Becoming dream from dreamtale  by KarmaAkabane425
#4
Becoming dream from dreamtale by Karma Akabane
What if someone from our world became dream on the first day they were made and were determined to not lose their brother to corruption like the original dream did in th...
Becoming Fresh sans by AmeliaForEli
#5
Becoming Fresh sansby LazyAmeliaforEli
What if someone in our world becomes fresh sans? --- Story Status: [✴️Ongoing] |⚪Unedited⚫| 。☆✼★━━━━━━━━━━━━★✼☆。 Impressive Ranking: #128 out of 47.9k - Undertale | ⊙.☉ ...
Save Me (Sans x Bitty Reader) by AshleyEevee
#6
Save Me (Sans x Bitty Reader)by QueenEevee
Since there's not enough x bitty reader stories out there. You are a stray bitty who ran away from your last abusive owner and run into someone who will change your...
I am the classic by KarmaAkabane425
#7
I am the classicby Karma Akabane
Somehow...I've become a sans...and not just any sans.. I'm classic!? What the flip is going on!? Wait why are different sans and papyrus's showing up at my home? I didn'...
Sans Starting Life In Another World From Zero by Cartinel56
#8
Sans Starting Life In Another Worl...by Cartinel
What if sans the funny skeleton was transported to Re:Zero? this fanfic answers that question, what will Sans do? how will he adapt to this new world? We'll just have to...
Undertale x male reader by RandomKid362
#9
Undertale x male readerby Toad Yeager
So harem book of Charas and Frisks x male reader but real description is below this. The only one of his person in all universes is part of Undertale with an OP powers b...
UnderHappened by FatalityWanes
#10
UnderHappenedby FatalityWanes
The Undertale Genocide Route is happening, but a new card has joined the deck: Finn, a quiet kid with a love for stuffed animals who falls into the Underground soon afte...
Completed
The Haunting of Collimore Manor || Murder Trio x Reader by _CAECAE
#11
The Haunting of Collimore Manor ||...by CAECAE
Y/N Collimore, a deceased mage that now haunts her family's manor must now deal with a group of skeletal intruders as she unlocks more of her forgotten past. Only thing...
Friends Meeting Enemies by AngelGold238
#12
Friends Meeting Enemiesby Angel Gold
What if there was a multiverse where Error and Ink were friends? What if the voices were the creators? What if they went to the Fgod multiverse because the voices were b...
I'm...swap gaster? by KarmaAkabane425
#13
I'm...swap gaster?by Karma Akabane
Yeah sorry gained an idea on if someone became swap Gaster Also they may be apathetic or just confused on their feelings and MAYBE Autistic, I may be a bit wrong on ap...
A new start? (Undertale x BNHA) by Dragon17122
#14
A new start? (Undertale x BNHA)by Dragon17122
Sans is brought to the world of BNHA. He wakes on the roof of UA.He'll meet new friends and enemies, old and new. But will he ever get over the jar, filled with his bro...
Completed
You and Your Bitty Pals by Blueprint15778
#15
You and Your Bitty Palsby Blueprint15778
It has been 10 years since monster broke free from the barrier, since then monsters, and humans live together in peace. But for some reason monsters have some how got a...
ClockTale an Undertale AU by fublle
#16
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...
Reborn As Error's Mom by DancingAce1
#17
Reborn As Error's Momby DancingAce1
Well to start off, I'm just a teenager and I died in my sleep and was reborn as a skeleton, who is supposed to be error sans mom?...*stares at the cute bundle of cutenes...
Never Go Back (Au sanses/Papyrus' x reader) by BrightLadyStarlight
#18
Never Go Back (Au sanses/Papyrus'...by BrightLadyStarlight
You are a doctor in the emergency department living in the city of Mount Ebott. You live with two magical skeleton who defy any type of logic and have a sleeping schedul...
Undertale AU Sibling Scenarios by UndertaleKyannaKitty
#19
Undertale AU Sibling Scenariosby Kyanna
This will be similar to Undertale AU Oneshots only: They're your siblings! Yep, cute, edgy, or anything else! Feel free to request!(Requests are closed at the moment) No...
Completed
𝐆𝐀𝐌𝐄 𝐒𝐓𝐀𝐑𝐓 by twistednoglastia
#20
𝐆𝐀𝐌𝐄 𝐒𝐓𝐀𝐑𝐓by ᴍᴀʀs
[AU Sans x Reader] (Subject to change!!) (Mostly bad sanses cause their funny to write lol) !!COVER BY @wrightcember THE BELOVED<33!! GO CHECK THEM OUT RN >:( //Re...