Undertaleau Stories

1.5K Stories

A Den Tale by Nedd3n
A Den Taleby Nedd3n
An "Undertale" AU inspired by the "One-Punch Man" mangá series, the idea is to be a tribute to Undertale and some other franchises and games. The sto...
[Sanscest roleplay book] by 1243_Unknown_1243
[Sanscest roleplay book]by {×.𝖀𝖓𝖐𝖓𝖔𝖜𝖓.×}
The title says it all! also, this is just for fun, I'm bored and sometimes I just wanna roleplay. Oh and- the art is by me! ^^
Looking in a Mirror by ErrorIsCool
Looking in a Mirrorby ErrorIsCool
Things are never as they seem. Heroes can be wicked, villains can be full of sorrow. Morals can be smudged. Reflections can be broken. This is the more planned out story...
Into the Dream by Octo-skelly52
Into the Dreamby AUprotector32
I know I just made another story but this idea came to me in my sleep. #cringepun This is a Slumbertale Sans x OC story. Sadly, I don't have any pictures of my OC other...
I didn't sign up for that shit by puddle_of_creativity
I didn't sign up for that shitby iຖk
If someone had told the Bad Sanses a week ago that they would not only have an unwanted vacation but would also have turned into children, they would have dusted them of...
His dark wings. by wolfie_playzgamesgac
His dark wings.by Ssnipermask
Geno, stuck on the loaded screen is impatiently Awaiting the sweet freedom of death. But this is not what he expected.
SerenityFell (W.I.P) by SerenityFell
SerenityFell (W.I.P)by Serenity! >:3
In the world of SerenityFell, a young girl named Lillie embarks on an extraordinary journey after an unexpected fall into the mysterious underground realm beneath Mt. Eb...
Alone - UndertaleAU comic (English version) by _KarciaNa_
Alone - UndertaleAU comic (English...by ~FutureverseEng~
(I apologize in advance for my bad English, but I'm from Poland and I just learning. -u-) Another comic book series to complement FutureVerse. This time we focus on Sam...
bad humour + good story (hopefully) by dumbskeleton
bad humour + good story (hopefully)by Nightmare_catcher
im trying to come up with a name for this story enjoy ig
A faint Recollection by Bozo_Of_The_Internet
A faint Recollectionby InternetBozo
Join Bozo as She travels through many worlds, meeting the inhabitants. Enjoy getting to see all your favorite worlds again from a different person's lens.
𖢺 𝑯𝒆𝒓𝒕𝒂𝒍𝒆 𖢺 by Clover_Clovii
𖢺 𝑯𝒆𝒓𝒕𝒂𝒍𝒆 𖢺by Clover Clovii
𝑼𝒏𝒅𝒆𝒓𝒕𝒂𝒍𝒆 𝑨𝒖 𝑩𝒚 𝑪𝑳𝟎𝑽𝑰𝑰, 𝑰𝒇 𝒚𝒐𝒖 𝒅𝒐𝒏'𝒕 𝒍𝒊𝒌𝒆 𝒕𝒉𝒆 𝑨𝒖 𝒑𝒍𝒆𝒂𝒔𝒆 𝒅𝒐𝒏'𝒕 𝒅𝒐 𝒉𝒂𝒕𝒆 𝒗𝒊𝒅𝒆𝒐𝒔 𝒇𝒐𝒓 𝒕𝒉𝒆 𝒉𝒂𝒓𝒅 𝒘𝒐𝒓𝒌...
Au sans Rp book (Mainly Bad Sanses)(No.2) by FictionalShippinBean
Au sans Rp book (Mainly Bad Sanses...by Wants To Rp
(Check Rp rules in the first book before you rp in this book :3) Most of these are in real life and have me in it and will sometime have my OC, Cide and her AU's aswell...
Undertale: Silver by yaseen__2024
Undertale: Silverby Yaseen Ibrahim
A human named Frisk wakes up in a mysterious place called the Underground and goes on an adventure to save the Monster Kingdom from the tyranny of Mettaton.
Betrayed Judgement [REMASTERED] (FNF X Undertale) by JeremyAaron0
Betrayed Judgement [REMASTERED] (F...by Trait of confusion
BF and GF were searching for an opponent to rap battle with (the usual. . .) and they stumbled into a hole. As they were trying to teleport away, they accidentally telep...
Completed
Bigger Impact AU (undertale au) by Danidamani
Bigger Impact AU (undertale au)by Daniel Ivanov
In the this version of the underground we know the death of asriel caused... a "bigger impact"
Damaged (Original Undertale AU) by vin_diesalREAL
Damaged (Original Undertale AU)by fast and furious
(Damaged is a original Undertale AU created by blisse.vul on Instagram, which is me) Frisk had ran away from a city he had once loved to the top of Mt. Ebott. Then he fe...
Remade as a Sans/☝︎♋︎❍︎♏︎❒︎ by Truenote
Remade as a Sans/☝︎♋︎❍︎♏︎❒︎by Truenote
Matt was a regular person who was a big fan of Undertale and its fangames. One day, he dies because of a person accidently knocking him off a mountain while he was hikin...
I'll Make You Mine by Abhainn35
I'll Make You Mineby Abhainn
(UPDATES EVERY FRIDAY) NIGHTMARE is a sadistic bastard, that's just a fact. His goal is to corrupt Dream's soul and prevent the Doodlesphere from feeling positive emotio...