Undertale Stories

1.5K Stories

The Green Legacy - An Undertale Fanfiction by GreenGorilla2568
The Green Legacy - An Undertale Fa...by Ryan Miller
For centuries, humans who climbed Mount Ebott never returned. Now, Erie has become the latest to fall, but she isn't here by accident-she's searching for her missing fri...
The child nextdoor by Honey_Bee669
The child nextdoorby psycho teddy
trigger warnings will be placed at the beginning of each chapter! this story will contain mature content, be warned before reading.
When Worlds come together by Honey_Bee669
When Worlds come togetherby psycho teddy
I've seen some Undertale fanfictions where readers and original characters are sucked from our reality and transported in to the reality of Undertale and it's several au...
☾︎𝐖𝐇𝐄𝐍 𝐌𝐀𝐋𝐀𝐘𝐒𝐈𝐀𝐍?!☽︎ (𝚃𝚠𝚒𝚜𝚝𝚎𝚍 𝚆𝚘𝚗𝚍𝚎𝚛𝚕𝚊𝚗𝚍) by arinekochan__
☾︎𝐖𝐇𝐄𝐍 𝐌𝐀𝐋𝐀𝐘𝐒𝐈𝐀𝐍?!☽︎...by Ecah
" ʜᴀɴɢ sᴀᴘᴀ?!?!?!" Y/N, a 19-year-old Malaysian person, is having a nice gaming time in their room when suddenly something falls and hits their head, and mak...
Fallen Into a Bitty of Despair by 7h3D4rkArts
Fallen Into a Bitty of Despairby 7h3D4rkArts
Reader falls into a state of apathy after a major tragic event that gets them to seek help. They are selected to be give a service Bitty when found out they live by your...
the MIX trio by Pawsasa
the MIX trioby aaa
???1 and his sisters ???2 and ???3 suddenly wake up in a white void... he was a Papyrus-like skeleton while his sisters was Sans-like... he noticed their roles in the si...
Au's Highschool // Ocxcanon + Multiship (Eng.) by SayoFrenchy
Au's Highschool // Ocxcanon + Mult...by Sayocchan
Kaly, a skeleton found in a dust-filled au, learns that every year, all the sans and some other monsters from each aus are sent to school for 6 months, this event having...
art book! by Luminositymoon
art book!by Little moon
yep this is it! I'm showing my ugly drawings to everyone! sometimes I'll do drawing requests- but that's really unlikely! sometimes I'll tag people because I created a s...
Last breath: Rewritten. by VHSenjoyer
Last breath: Rewritten.by VHSenjoyer
Writing fight to train and also giving a sense to fight that are way too unclear. This story will tell everything since the beginning of the Timeline, don't be impatient...
BE A HERO [ii au!] by strangecoin
BE A HERO [ii au!]by strangecoin
Ever since Paintbrush was younger, they wanted to be a hero. For the fortune and fame? Maybe. For maids and servants? Maybe. For someone that they loved? Yes, maybe. Onc...
Redefining Expectations-Insomnia Sequel by HappyWriter62
Redefining Expectations-Insomnia S...by HappyWriter62
This sequel to my Insomnia story, please read the first if you haven't already: Expectations and a Golden Stitch. The battle is over for now...has been for a bit now. T...
Swapped Places ❤️💛 by Nukefuse
Swapped Places ❤️💛by Nukefuse
A short story idea I came up with about Clover and Chara (Cocoapowder ship).
My OCs by Tailbolt
My OCsby Tailbolt
Just some pictures of my OCs. I will add the info later.
Children of the Harbinger (Book 1) by art030603
Children of the Harbinger (Book 1)by Mystery_Imagination
*=======================================================================* -Disclaimer- I do not own Undertale, Monkie Kid or any of the characters except mine. -Warning...
Desert Sanctuary Guidebook by KarmaSpidr
Desert Sanctuary Guidebookby KarmaSpidr
Clover doesn't give up his soul because justice still needs to be delivered. The Wild East, and later practically the entire Dunes, declares independence. They declare...
Lucent by Firehedgehog
Lucentby Firehedgehog
They we're a child of the void, a Voidling. There soul fell into the void instead of the reincarnation cycle, curious they leave the void to learn of the outside. Yet...
Color Mix (or A Second Chance) by fern4u
Color Mix (or A Second Chance)by fern
After the best possible outcome for monsterkind, they all are unshackled from the prison known as Mt. Ebott. The two ghosts haunting the savior human, Frisk, however, ha...
Whisper [Undertale Multiverse] by DeadEnDead
Whisper [Undertale Multiverse]by DeadEnDead
In a dying multiverse, the death of Nightmare and Error unintentionally creates a new entity; Whisper. Born of destruction and negativity, the new god is thrown into ano...
is this the end... (not my book but is @gonelikeyoudad?) by Moonwolf_230
is this the end... (not my book bu...by darkmoon_sans23 [ DARKLIGHTVE...
@gonelikeyoudad? is the original writer of this amazing story!!! and I decided to continue their wonderful story because every story has a good ending right? but some s...
The Abandoned One (Ultimate Crossover) by JeremyAaron0
The Abandoned One (Ultimate Crosso...by Trait of Confusion
After a pacifist route, Chara strikes yet again and kills the remaining citizens left alive and proceeds to other worlds while Sans tries to stop them and rescue as much...