Undertale Stories

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 people? Only time will tell. Hello, this is going to be my first book and idk if it's going to be good so meh :v This story was inspired by transported as a voice by Virus_bOi, I obviously do not own undertale and I don't keep up that much with the fandom, so some personalities might be different, but hey. I can just say that it's a different multiverse ¦ ] The cover image is from Shira Wolfiecute on tumblr

Reborn as the guardian of positivity, you find yourself in a strange new world, uncertain of what it may hold. Navigating it isn't easy with gods like Nightmare and Error trying to strike you down every step of the way. But unlike the previous Dream, you have nothing to lose, and are determined to forge a better path than the soul whom you have replaced. Cover art by the wonderful @Nymara379 on A03 ♡

so I oh ways want to make a reborn as killer sans, but we're mentally unstable, of course, due to the rest and our past memories, which we can't remember what we were anyway! We know everything and everyone, so why not mess with them. This going to me fun!!!

One day, Y/N was playing Undertale. Y/N finished the game, both genocide and pacifist. After the second pacifist ending, you wondered how life would be like IF the monsters actually were real. If the monsters would actually roam around and act as humans. That thought soon changed. ( Book Cover Picture is NOT Mine. I found it on google. Credits to the owner. )

Seven years ago, monsters were finally free. Seven years ago, a human was forced into bondage. Seven years ago, this world ceased to be the tale we all knew and loved. Now, the butterfly flaps its wings. How would this world react to a presence never meant to be in the script? How would it react...to You. After all, you were Not Meant To Be. Author's Note: Welcome to my very first story! Not Meant To Be is an Undertale Reader-Insert/Chara fic, with emphasis on a plot, written purely for fun. It is heavily inspired by other works in the fandom. Rated Teen (T) just to be safe. Might bump to Mature due to (little) explicit language, violence and fantasy violence, and suggestive/sexual themes. I do not own Undertale or its characters. Enjoy!

In this AU, Undertale monsters live amongst humans in the One Punch Man verse. How will it all play out? (THIS IS DIFFERENT THAN PUNCHTALE!!!) As an AU, characters may differ from their canon counterparts.

Sans and the gang escape the underground but the world outside doesn't accept them. They have to disguise themselves. Inspired by the glamours In A Wolf Amongst Us. Multiple Relationships, drama, romance, angst, despair, adventure and craziness ensues.

Abandoned on Mt. Ebott at the tender age of five, young Harry's unsurprisingly died, but Death's always had a weird relationship with his variant... Meanwhile, before Flowey's revival as souless talking flower, Sans makes a discovery under the mound of snow, Papyrus has always wanted to be a big brother anyways. *Edited Summary (29/09/2025)

what the fuck is touhou. .that was new problem for our new disastorous being - infected sans!(aka jacob). btw infected sans - alphatale by shadikal15 there will be other arrival of alphatale in touhou universe and possibly several unieqe interaction of abilities. This is not serious crossover btw so no need to be argued with how two universe react to eachother?(Technically three since edensphere and Twilight realm is seperated wiki with alphatale).would it be a war between two old realm or coexistence of two seperated world? And for touhou it was obviously from ZUN and both alphatale and touhou project wasnt own by me(except my OC i guess)

It all started with the sound of a knock, And evolved into a joke, The jokes continued until they became friends, And the friendship turned to a relationship, But soon life came into play, The king came along, Thinking he could sweep the love away.

Working at a luxury hotel has its advantages- the pay, discounts, seeing celebrities. It's not all sunshine and rainbows, but you enjoy it! As someone who overanalyzes things and processes things different then most normal people, you find the mind numbness of the job very relaxing. Not too exciting, not too boring, just nice and simple. Unfortunately, you're really good at your job. And that causes you to accidentally overhear some intel- causing you to be kidnapped and sold at auction. What happens when a perfectly composed and professional monster loses his rational thinking in her presence? What happens when they come together to stop forces beyond their control- beyond their power? _________ Art doesn't belong to me.

4 years after monsters came about Ebbot (Y/N) was friends with the Dreemurr children. Being the master dancer that she is can gather her magic to do amazing things. Having been through a lot in the short 19 years of life. She finally meets a handsome monster who knows her big brother and who understands what she goes through. What will happen between these two?

Moray, beloved member of the Feisty Five, gets ill without reason and ends up ultimately falling down. Ceroba, dear friend of the posse's leader, gives them a PSA from the Royal Lab, who could find a way to save them. But what is about to unfold is a lot more ghastly than what they could ever imagine.

Read me. See what I have in store.

My other art books are full, so here's a new one! The third! I wanna share my tumblr art with you guys <3 I add 3 new chapters at a time. Not everyday updates, just whenever. ENJOY!!!

If given the chance, would you start over? After falling into a timeline where nobody was murdered, his mother never died, and his father was never erased, Sans should be ecstatic that he has a second chance with his loved ones. But there is no denying the trauma he'd been through, either. Everyone is supposed to be dead, after all. What if Frisk comes back to take it all away again?

Your favorite skeleton is back at it again... and again... agagaagaag Sans has had enough. Everyone is at the surface, holding their own jobs and lives. But... Sans can't ever let it fade from his mind. The dust. The cries. Watching the screen with Alphys as a child just rampaged in the underground. He is going to snap. He is mad. He is sad. He can never forget. Cover is NOT mine, find it online if you want ::Rights for the original concept and media 'Undertale' are all under the jurisdiction of Toby Fox. All other workings are done by me.::

(Y/N) didn't want to be friend the popular kids. Nor had she ever dreamed that she would have a sleepover with them. But boy is she wrong when she is forced to go with the popular girls for a one night sleepover. But what (Y/N) doesn't know. Is that her life will change in that very night. "Well well well, look what we have here." Cover by: @ scryl.studio on Instagram

There's only one rule for those capable of AU hopping: never bring a real person into the Undertale multiverse. But, like all rules, it was destined to be broken. | - Error Sans x Female Reader - Young Error - take places not long after he becomes Error - so he mimics his canon version more closely at the start before molding into my fanon version with experience - This intentionally doesn't follow the exact plot of Aftertale either - Achingly slow burn - I abuse Y/n more than necessary (oops) and Error is toxic pre-character development. This isn't meant to portray a perfectly healthy relationship, but show that perhaps even the worst person can change - The friendship dynamic is: bffs that insult each other for fun (while not meaning a word of it) & I include a lot of what's deemed 'filler' content b/w Y/n & Error (y'all just 'hanging out') bc there has to be a solid foundation for Error of all people to care about someone else - Expect a heaping helping of banter 👍 (I couldn't help myself)

Being reincarnated is a lot but something one could get used to. Waking up in a weird body with strange creatures staring at you was startling to put it lightly. She was just going to leave these weird 'people' and try and understand things.. Wait...why was she so tiny?! -- OC as babybones Ink from a Shattered Stars multiverse. The usual story will certainly be different then usual with the script kicked far to the side. ---- Inspired by 'A Psychopath by Clichey'