Undertale Stories

A new hope has awakened in the world of RWBY Y/n a normal boy is Isekai'd into the fictional world of RWBY and is determined to rewrite fate, How will he change the story I got no clue, how bout you? All RWBY characters are owned by rooster teeth And all other characters are owned by their respective owner's [Slightly Slow Uploads]

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

With the underground finally free, Sans the comedic prankster, wanted a nap. Except this time, Sans would find himself in quite the pickle. A purple portal, the gaze of countless eyes staring endlessly into his hollow skull. Tired, Sans decides to ignore it. Yet fate doesn't wait for a slacker who is only there for banter. ------------------------------------------------ My first fanfic, Feedback is appreciated I use tool assisted apps to help edit my grammar.

the bad sanses do a raid on an illegal auction of many rare, dangerous, and illegal things. but after the dust settles, killer finds what he believes to be a weird mutated cat and decides to take it back with him art by me. my first book, and feel free to correct my spelling in the comments

"the healer likes t' sleep. like, a lot." Axe looks at the sole female AND human member of Nightmare's subordinates. She was only ever awake for about 8-10 hours a day, rarely ever 12, it was both fascinating and irritating at the same time. He was damn sure humans would be awake for more hours than that, he even asked Murder at the time if it was normal. Said skeleton didn't give a single care though, his words: "who cares, makes her more tolerable. 'sides she gets her job done." The cracked skeleton just couldn't shake off the feeling that there was more to it than meets the EYE. ━━━PHOTO CREDITS: Whale鯨豚 [@Whale5511] on X! ━━━MOST NOTABLE RANKING: #1 in sansxreader, horrortale, something new and badsanses on 23/12/2025 #1 in undertale on 25/12/2025 #3 in bittersweet on 24/12/2025 #2 in sans 18/08/2026 #1 in reader on 18/08/2026 ━━━━━━━━━━━━━━━━━━ DATES PUBLISHED: 001 ━━ July 29th of '25

Timelines, genocides, deaths, ... It all stopped suddenly, leaving a hole in the stream of time. How will Fate repair it ? Will the souls participating in this stay themselves ? Story started on 21/03/2026 Arc 1 : The prologue started on 21/03/2026 ended on 08/04/2026 Act 2 : The Descend started on 16/07/2026

Dear, Nightmare, Cross, Error, Dust, Horror, Killer, Lust, Reaper, Geno, Ink, Dream, Blue Hey guys, It's me...Sci, So uh, I've just discovered something really cool. And I mean like, really cool. I was wandering if ALL of you could come down to my lab this afternoon so I can show you this thing. I promise you'll love it! -Sci- Nightmare frowned and looked at Error, who had been reading over his shoulder. He simply shrugged in response. "Eh, might as well, I'm bored and we've got nothing to do. What could possibly go wrong?" What could possibly go wrong...? Ehehehehe I wonder.

Y/N, 5 year old, was found in a collapsed AU that just wouldn't be erased from existence. The bad guys found them and took them in as their own. Who knew taking care of a child was so difficult

A continuation request book from the Error/Moxxie Random Drabble book! From request to mine own ideas mix in! Book cover art not mine belong to their original owner.

The skeleton shakes his head slightly, a boney hand sliding across his skull. "Ah- well- that wasn't free Doll, 'course you'll have to pay me for that..." He trails off, his cocky smirk ever present on his face as he looks you up and down for a mere second, "...little favor." He pinches his pointer finger and thumb together before rubbing them together. _____________________________________ (Y/N) is a bartender that was kept secret from the after hours patrons at the bar she worked at for two years. Her boss not wanting her to associate with the people that would further pull her into a world that she was scratching the surface of just by working there. But after staying just a few minutes later then she was supposed to she stands face to face with a gold toothed smartass with a devilish smirk- his red eyes trained on her every move. ______________________________________ There is cussing but let's be honest- there's cussing everywhere. Also posted on AO3 as clubofsnakes where additional chapters later on will appear there and not here. I was inspired by- @MissHoll-E-Socks with their story "Can I take you to dinner?" NONE of the art is mine.

The world has always dealt in absolutes. It was absolute when it took Error's parents away from him, leaving behind three siblings with nothing but each other to rely on. It was absolute when it coaxed him to become something greater than himself, fueled by the pain and desire to right society's wrongs. It was absolute, when it decided that Error was the king in life's extravagant game of chess. Or, Error is a friendly neighborhood vigilante until he's not. ⚠️Disclaimers⚠️ -Depictions of blood/violence -Torture -Death (no mc deaths though) -Kidnapping (Main things to look out for, warnings will be included on chapters they pertain to.)

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)

Alternate Future Of The World. Includes Crossovers From GT, UT & SU That Are Marked With DG![Crossover].

Long ago, two races ruled over the Earth: Humans and Monsters. One day war broke out between the two races. After a long battle, the humans were victorious. They sealed the monsters underground with a magic spell. Many years later... Mt. Ebbot: year 23XX Legends say those who climb the mountain never return. Here we see our main protagonist, Izuku Midorya, being chased by his childhood bully: Katsuki Bakugou. He ends up climbing Mt. Ebbot in hopes of escaping and takes refuge in a dark cave. While wandering the cave for a hiding spot, he fails to see the giant hole... and he falls. ------------------------- Here is the rewrite of my Fallen Hero AU. I do not own BNHA or Undertale. The cover art is mine. Ownership of Undertale goes to Toby Fox Ownership of BNHA/MHA goes to Kohei Horikoshi. This is a BNHA x Undertale crossover. It's my first story so please enjoy. ⚠️ Warning⚠️ This book contains swearing. Yield, oh innocent ones. There are also mentions of abuse, discrimination, and bullying, so avoid that too if you don't like it.

"After countless resets, Papyrus has his role down to a science. But everything changes when he's thrust onto a strange new stage: the Surface. In a world where humanity wields 'Quirks,' Papyrus befriends a young Izuku Midoriya and sets his sights on a new goal. By becoming a top Pro Hero, Papyrus hopes to finally secure a future for his brother and all of monsterkind." Ps. I want to give you all a little announcement a good friend of mine you all know dreadwing346 on fanfiction.net and here on wattpad is helping me to write this story and we both agreed to put this story on a different fansite known as Ao3 under the username Dreadwing.

Undertale Story Hello there! Glad you could make it..this is a story of my OC. "Miss Ansel". A story about a child made by Ink Sans and Error Sans. Join me on her journey of how far her soul of Kindness goes along and helps others along the way. PLEASE PLAY THE MUSIC I PUT UP AT EACH PART OF THE STORY OTHERWISE IT WILL NOT MAKE SENSE. Please visit my second account with the story called ''Such a Rose..Can Be Unique..''. Warning this Account was sadly lost.

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!!!

Sans and Papyrus were just trying to have dinner. They didn't expect things to blow up (literally). Now they have a destroyed machine and a young babybone that they suspect as a Shifter. Where did they come from? And who's life privilege they need to remove? Because this babybone is clearly been abused or worse. Now then, where's that parenting books Sans been storing since Papyrus a babybones, he's definitely need a review if they want to keep the kid from getting killed. At least the kid's adorable...

Frisk has spent her entire life surviving by stealing from the wrong people. After a failed heist lands her in the hands of the Black Roses, the city's ruthless human crime syndicate, she is offered one impossible choice: infiltrate their greatest rivals, the Monster Syndicate, or die. Armed with nothing but a fabricated story and orders to destroy the Family from within, Frisk earns the trust of monsters she was taught to fear. But the deeper she sinks into their world, the harder it becomes to believe the lies she's been told. As loyalties blur and dangerous friendships form, Frisk finds herself caught between two criminal empires on the brink of war. When her betrayal is exposed, both sides force her to make a choice that could cost her everything. In a city ruled by blood, trust, and family, survival may no longer be enough.

30 years ago, a devastating event occurred. A Spatial Quake struck Earth and killed over 150 million people. However, it also lead to Pokémon gaining the ability to speak human language. The bonds between humans and Pokémon have never been stronger. In the present day, twin brothers Izuku and Clover Midoriya, along with their neighbor and friend, Shido Itsuka, attend Tengu High. Everything goes as normal until they end up getting caught in a mission lead by Ratatoskr and the three end up stuck needing to date and make Spirits fall in love with them to save them. As if that wasn't crazy enough, a horrible threat, far greater than any Spirit, is seeking to destroy and conquer anything and anyone that gets in his way. The evil Lord Drakkon. Intergalactic being Zordon needed a way to counter this, as the Zordon from Drakkon's universe failed to stop him. Luckily, the original Tommy Oliver had a plan and made multiple, far more improved Master Morphers. Now Zordon needed to find some teenagers with attitude to help. Now, Izuku, Clover, and Shido, are Power Rangers and destined to save the universe, no, the multiverse, from the evil Lord Drakkon. Will it be easy? Heck no. But they won't give up. Rangers forever, defending together!