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  • Front Stroke (Sans x Frisk)
    40.3K 1.3K 31

    *COMPLETED* Ever since I was little, I always dreamed of one day, being like my mother. A Swimmer Yet sometimes, dreams can also be just a dream, never to be fulfill. Ever since the day where I almost drowned and confined in a hospital, I had Aquaphobia, a fear of water and water-related activities such as swimming. I...

    Completed  
  • HopeTale
    3K 142 30

    Left on the steps of an orphanage, left with nothing but an over sized blue jacket and a gold heart locket when she was only baby. Corsiva was kept a secret. There is a law that bans hybrids or monsters from being a part of civilization. When she finds a clue who her parents are, she goes off to find anything that may...

    Completed  
  • Raining Love~ Sancest Multiship
    33.1K 1K 31

    After a downfall of rain starts up in almost every au the star sanses are forced to seek the 'bad sanses' for shelter. What seems to be a painfully long-stay begins to turn into something more. Notes: Nightmare will talk in bold CC or Cross Chara will talk in italics None of the pics are mine unless I say otherwise An...

  • Not all Nightmares are bad (Nightmare Sans X reader)
    265K 6.8K 72

    (EDIT: STORY IS BEING REWRITTEN! PLEASE CONSIDER REREADING THE REWRITTEN CHAPTERS [chpts. 1-31] ON MY PG!) You are a young teenager girl. You have a happy normal life........kinda. You're best friends with the angel of monsters, Frisk. One day you follow her and sans to strange place on accident.You see lots of hers a...

    Completed  
  • crossover highschool
    432 18 4

    you like star vs the forces of evil? Steven universe? gravity falls? undertale? well this high school will have all those CHARActers and more

  • GemTale - A Steven Universe and Undertale Crossover AU!
    7K 95 9

    Hey! This story ends suddenly and with no closure. If you'd like to continue it yourself, feel free! tag me in it+ credit! i'd love to see it :3. I stopped it because the plot was messy and I lost motivation. Sorry to add on to the many unfinished fanfics that ik pains people ! WARNING: If you don't like Soriel, Papy...

    Completed  
  • Mercyplates - Crashing Down
    6.6K 244 5

    2-P notices something off about the lab, which concerns Gaster when he sees that he's right. Something isn't the same. And between the returning parental feelings and Asgore worrying for his health, the Royal Scientist isn't sure what course of action would be safest. A Mercyplates fanfic. Handplates was made by Zarla...

  • Finding Your Parts (Grillby X Gaster FanFic)
    9.6K 308 8

    I couldn't help but remember, the memory striking my whole being. Something in my life made me forget. He was my friend. He then died a painful death, falling into the CORE. How can someone tell me that there's still hope that he's alive? It explains the dreams, the voices... and even the boney hands that held my face...

  • AfterDeath
    251K 10.7K 48

    Geno is sick and Death comes and takes care of him. Cover picture belongs to me. Geno belongs to loverofpiggies. Death/Reaper!Sans belongs to renrink.

  • That's A Dragon? (UnderSwap Sans x Dragon! Reader)
    131K 3.8K 75

    (OMG the first book that isn't an AU sans x reader!) It's said that all Monsters where trapped in the Underground but what if Dragons were still up on the surface. Thanks to Chara the Monsters are free and are now walking on the surface. Dragons kept themselves hidden causing their species to be forgotten, they're no...

    Completed   Mature
  • Miscalculating Times
    11K 477 5

    when erratum fell in the void after his ambush from the others,he was woken up in a young age of ten, he then met QT!gaster,papy(toddler)&tk(8 yrs.old),he live with them ever since and had a close relationship with the QT!skelebros,especially tk, he and gaster found out of his past and the things he been through for a...

  • Daughter of Error *Rewrite*
    45.4K 1.2K 8

    You are the daughter of Error and you append in the anti-void one day with your brothers you being the youngest out of them all. What will you do when Ink finds about your existence? No characters belong to me only the plot line

  • In Love With The Enemy (Undertale AU Multiship Story)
    234K 7.3K 54

    After Error falls in love with his sworn enemy, Ink, his teammates also start to fall for people... SHIPS: Crossmare Kreme Errink HorrorLust Kustard Dustberry Afterdeath The cover was drawn by @Cai180 If you want to suggest something just comment :3

    Completed  
  • ErrorxInk [] A Glitched Soul
    266K 8.6K 67

    Error and Ink, sworn enemies of each over but one of them has a dark secret.... Will Ink be able to convince the destroyer? Or will the multiverse fall beneath his feet...?

  • The Dreams of a Mistake (Error!Sans x Reader Fanfiction) COMPLETE
    30.1K 795 10

    When Y/N was young, she always felt like she was a mistake. Her mom loves her, her aunts and uncles treat her like she's their own child, and her cousins treat her like a sister, but it's the other kids her age that make her feel otherwise. Because of her interest in monster kind, other children say she shouldn't be a...

    Completed  
  • If Two Fated Souls Meet (sans x experimented reader)
    2.6K 118 19

    you fall in mt. ebott your not expecting meeting your long lost sister and finding the love of your life.... if your searching for undertale fanfics this is the book you're searching for.....

    Completed  
  • A New Soul (Sans X Female Reader)
    179K 3.2K 31

    (Y/N) absorbed a monster soul when she was little, gaining skeleton powers. Many years later, (Y/N) and her sister Frisk fall into the underground, meeting Toriel, their new mother, Papy, Undyne, and of course Sans. Will (Y/N) and Sans finally realize that they have feelings for eachother, or will Asgore find (Y/N) be...

    Completed  
  • Undertale/Transformers crossovers
    14.3K 639 8

    I fangirl over Undertale. My sister is a member of the Transformers fandom. We wrote a crossover fic together. And then we wrote another one. And now we're writing more. I mean, giant alien robots meet decades-imprisoned Magical monsters. What could go wrong?

  • *Rewrite/New Version* Healing What Has Been Broken
    88.7K 3.5K 11

    (This is the rewrite/newer version of 'Healing What Has Been Broken'. I do not own Undertale, the characters, or the cover - they belong to their respectful owners and JuneTheTrickster made the art based off of my new design for Erratum. I only own my versions of the characters, OC's, and this story.) Error, the Force...

    Mature
  • Insomnia
    48.7K 2.4K 64

    Dream chooses the wrong time to fall in love with the forced destroyer known as Error. When problems arrives Dream has to balance between real love, faked loyalty, and loosing friends to keep his lover alive. This is based off a Roleplay my friend peiceofaucrap and I made, currently it is still going and I wrote this...

    Completed   Mature
  • Under Arrest (Multiship)
    162K 6.9K 64

    [✔️] Currently updating 3rd book 📖 Being one of the most famous police on the job, Ink has to find and arrest one of the top gangs in the city. Along with friends, they search for the infamous rebels. Action, drama and betrayal comes in every direction. Do you think Ink and Co. will get these criminals, or would...

  • My dad? Oh, it's Erratum. REWRITING
    10.8K 527 7

    Cil always wondered why nobody noticed him crying or hear him screaming for help. He thought he was invisible, then why can he still touch, see, hear, talk and interact with a few others? Was he really that unnoticeable? Now he knew why. His screams were met with deaf ears, his crying was seen by unmerciful eyes. That...

    Mature
  • UnderCorrupt
    83.8K 7.2K 54

    I have an Idea for an Undertale AU. And apparently, it's a good idea? So here, have a book. --- Long ago, two races ruled the earth. But when a plague of corruption swept through one species, causing a half of their population to attack the humans, the humans thought it safer to banish all the monsters underground. No...

    Completed  
  • Why is Love So Hard?
    461 20 1

    Gaster is the head Royal Scientist, bearing with it a lot of responsibility. But with his workaholic personality and refusal to sleep, this makes for a lot of injuries. Grillby is working hard, doing almost any job he can find so he can save up to build and own his own restaurant, his dream job. So of course this lea...

  • GravityTale
    12.4K 736 5

    Last summer, Mabel and Dipper Pines vanquished the demon known as Bill Cipher. This summer, they're looking forward to a vacation in their favorite place on earth: Gravity Falls. Meanwhile, Sans is relatively happy. This is the first timeline in which the kid has gone completely pacifist, not gained even one EXP. Of...

  • No More (Undertale)
    67.8K 2.9K 13

    For years, Papyrus knows, Sans has had nightmares. Horrible nightmares, nightmares that leave him crying in the dark, crippled in the mind, and barely able to function in life. And that's why Papyrus stays so happy, so bright, for Sans, to keep his brother going through the hard times. But when Papyrus starts having...

    Completed  
  • GONE
    67.4K 2.5K 16

    I didn't come up with the idea error has a secret life apart form being the destroyer what will happen when his opposite ink finds out

    Mature
  • Ink x Error Shattered
    46.1K 1.4K 29

    An Ink x Error fanfic (Updated 6-9 days, when there's no drama going on/have time) Ink as Creator, Error as Destroyer This story will talk a bunch about the strange jugs of colors ink has across his chest. They're Ink's feelings, find out what uses they'll have later. Hate, love, fear, joy, and many more. Crystals...