Undertalefanfic Stories

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354 Stories

  • ButterCups: An Undertale Fanfic by StarryFox10
    StarryFox10
    • WpView
      Reads 1,865
    • WpPart
      Parts 13
    Asriel Dreemur and his adoptive sibling Chara Dreemur are the bestest of friends. They may be different physically and emotionally, but they love each other as siblings should. When Chara begins to doubt her original plans, everything changes. Nothing was ever easy in the underground, and she learns that for herself when she meets her fate on that deadly day. But, then comes Frisk. She actually has a shot at making this underground pay for what they did! If she could persuade the girl to let her "guide" her through the underground, then Chara could finally take over as Queen of both monsters AND humans. She has the power right? But then there's forgiveness. And.. Asriel. Will Chara risk everything for him?
  • sans x reader (platonic) by en0ryt
    en0ryt
    • WpView
      Reads 20
    • WpPart
      Parts 1
    its what the title says !! you guys are just friends in this story ! i know the beginning is super basic bear with me i swear it gets better v v v none of the art is mine unless stated otherwise
  • Error Oneshots 💙[REVISING SLOWLY] by PaintK1ller
    PaintK1ller
    • WpView
      Reads 1,794
    • WpPart
      Parts 8
    Hello there! Charlie here! this story will be based off of one I read, but can't find...(I think it got deleted) And I can't remember the the OG author qwp IF YOU ARE THE OG AUTHOR/REMEMBER WHO IT IS, PLZ TELL ME QwQ Ships in this story: Errorberry Killer x Horror x Error Error x Fell Insomnia (Dream x Error) Error x Lust Error x Fresh Error x Classic Toxic Errink Stretch(Carrot)x Error Nightmare x Error Cross x Error AND Error x Dust :3 (I think that's it?) Go ahead and guess his mates.(There's 4 in the end) STORY RUNDOWN⚠️ Jerk makes Glitch in heat heat makes Glitch have to fuck everyone to find mate(s) Glitch horny af and happily is Sub in all ships Blue is not a mate, but close friend to help him💙 Safe word is pineapple 🍍 lol ENOUGH SPOILERS! will update when I can! :p EDIT:(Dec-31-2021) I added a mate lol Jan-17-22 #4 In CrayonQueen💜
  • 𝕯𝖆𝖓𝖉𝖊𝖑𝖎𝖔𝖓𝖘 | UnderNova Au's | Headcanons / Scenarios / Oneshots by NovaCorparation
    NovaCorparation
    • WpView
      Reads 117
    • WpPart
      Parts 21
    !The Au's, UnderNova, and characters in this book are entirely my own and were made by me. The cover of this book was made by me. And the pictures that I will use in the book were made by me! ... !UnderTale is not mine! Hello Dear Reader! First of all, I am writing this book because many ideas come to my mind all the time and it gives me a headache.I don't have the best english so i will use translate.There will be slow updates because life doesn't love me.If you find this book and read it, you will make me very happy.I'm sure no one wants to read this book.But I still write.Anyway, see you! UwU
  • NIGHTMARE X [FEMALE] READER by GalaxyTheFur
    GalaxyTheFur
    • WpView
      Reads 205
    • WpPart
      Parts 1
    ⚠️WARNING: LEMONS 🍋 PLEASE READ AT YOUR OWN RISK⚠️
  • Blurred memory's  by gh0styb0ii
    gh0styb0ii
    • WpView
      Reads 0
    • WpPart
      Parts 3
    (No one reads these but whatever) People all have things they'd rather forget Something ugly, or bad Something ripped off or unoriginal So we bury it And hide it And cast it away Unknown to us their is a swirling ocean containing these story's Their voices F r a g i l e and b r o k e n And unknown to us The burden of these memories is forced onto someone Who must guard and protect them *Credits!* Undertale belongs to Toby Fox Ink belongs to Comyet Error belongs to CrayonQueen PJ belongs to 7goodangel Nightmare and Dream both belong to Jokublog Cross belongs to Jakei95 Hue, Pixel, and Gel belong to me *Any other characters added to the story will have their creators credited here* Thank you for reading! I hope you have a wonderful day/night
  • Undertale Fanfic:  Fate of Shadows by ShadowlightTheFox
    ShadowlightTheFox
    • WpView
      Reads 97
    • WpPart
      Parts 4
    This an Undertale Fanfic. It features me and my friend's OCs and a few of the original characters. Just FYI there will be a lot of the AU sanses, such as UnderFell sans, UnderSwap sans, and InkTale sans plus a few others. The story is just basically the backstories and the adventures these kids have. If you have any ideas pls comment! Thx my fox family!
  • ReaperTale Pilot by Xinnooo
    Xinnooo
    • WpView
      Reads 43
    • WpPart
      Parts 1
    This is how I view what ReaperTale would be like. Note that probably none of this is canon, this is the pilot chapter, and that the only thing that is directly from ReaperTale is the characters. Uh... enjoy. (Also, inform me if some copyright information is wrong.)
  • I Promise (sans x reader) by harley_177
    harley_177
    • WpView
      Reads 7,659
    • WpPart
      Parts 24
    Y/N was a normal teenager who gets bullied everyday, she has only one friend who called 'Frisk' one day they decide to climb the mountain but then... "I want you to reset" 🚫TW🚫 SO CRINGE AND FULL OF MISTAKES, I DON'T RECCOMEND READING IT!
  • Under the Same Worlds by Gio_books2208
    Gio_books2208
    • WpView
      Reads 72
    • WpPart
      Parts 6
    Frisk, a sweet person falls into the monster underground. And with their adversary killing all of their friends, what will they do?
  • A Visitor by aImawolf
    aImawolf
    • WpView
      Reads 53
    • WpPart
      Parts 2
    Aliza is a traumatized child in desperate need of therapy. Of course, everyone in Horrortale needs therapy, but it doesn't seem like anyone is going to receive it anytime soon. That is until Aliza wakes up in a strange new area and is greeted by new yet somehow familiar faces... Are they really trying to help her, or is a more sinister plot involved? Time will tell... (AND WILL SOMEONE PLEASE GIVE THIS CHILD A HUG?!?!?)
  • Learning to say i love you  /Undertale Comic's/ by CutyJamy
    CutyJamy
    • WpView
      Reads 314
    • WpPart
      Parts 3
    UNDERTALE COMIC BY J.🐠JUMY
  • Undertale Fanfiction | TRUE MERCY by mantaraye
    mantaraye
    • WpView
      Reads 82
    • WpPart
      Parts 2
    The fanfiction is terrible and I don't even know what I'm doing. YOLO This is a fanfiction of the video game, UNDERTALE by Toby Fox. If you haven't finished/played the game, you will probably not get 99.99% of the back story. So, I recommend you to play the game first before reading this. But, you can still read this. It's not that hard to follow (I hope). This story is SEMI-FANFICTION of UNDERTALE, meaning that many characters are being used in this story, as well as many other things, but there is a slight twist to it all. Not going to tell ya- you have 'ta read this first. ;) THERE MAY BE A SUMMARY IN THE FUTURE.
  • Fallen Devil - An Undertale Fanfiction by augusttheartist2
    augusttheartist2
    • WpView
      Reads 0
    • WpPart
      Parts 1
    Lumi used to be a devil. She used to be Ạ̸̏k̵̩̉ú̸͜j̶̪͒i̴͉̐. She hated the devil ways and attempted to fly up to heaven, only to fall when she didn't know there was a barrier preventing devils to get through. She fell unconscious after landing in a cave-like area, but her fall was cushioned by soft yellow flowers. When she woke up, her wings were... angelic.
  • UNDERSTORY by supersusguy88
    supersusguy88
    • WpView
      Reads 51
    • WpPart
      Parts 9
    They all finally arrived at the surface, but something isn't right. Tho monsters WERE accepted by humans. Little dose everybody know there will be way more adventures for Frisk and friends. For example the monster king Asgore was framed on killing the human mayor and the skeleton brothers find their lost ♌︎♓︎♑︎ ⬧︎♓︎⬧︎⧫︎♏︎❒︎. And maybe even 🕈︎📬︎👎︎ ☝︎♋︎⬧︎⧫︎♏︎❒︎ and ✌︎❒︎♓︎♋︎●︎ themselves. With universal adventures, you won'T know what comes next.
  • Me And My Favorite Broskii by LemonsAndCyanide
    LemonsAndCyanide
    • WpView
      Reads 18
    • WpPart
      Parts 1
    A world where monsters were trapped underground by the human race. When two troubled friends find their way up the mountain, they discover that the legends are true. They reunite with a long lost pal and meet some unforgettable friends and family. A heavily rewritten undertale fanfic I wrote of me and my friends a couple of years ago. Enjoy
  • Persist by TheKiasuFelicia
    TheKiasuFelicia
    • WpView
      Reads 12
    • WpPart
      Parts 1
    Constellate's backstory
  • Sans' story. =1st story= (UT FANFIC) by Yugiogianta
    Yugiogianta
    • WpView
      Reads 10
    • WpPart
      Parts 1
    ••Sans Definition: Humorous Defenition: Finished•• "Interesting." --------------------- Hey kiddo
  • Fallen Down- An Undertale Fanfic by frisk1
    frisk1
    • WpView
      Reads 38
    • WpPart
      Parts 1
    Frisk, a young human child, climbs Mt. Ebbott, in order to prove a local legend false. But, with one wrong step, Frisk is sent tumbling down into the hidden world of monsters down below the mountain. I hope you all enjoy my story :) I DO NOT OWN UNDERTALE OR ANY OF IT'S CHARACTERS. THEY ALL BELONG TO TOBY FOX
  • ||Mettaton x Reader || Oneshots and Scenarios|| by Never-Coming-Back
    Never-Coming-Back
    • WpView
      Reads 10,505
    • WpPart
      Parts 34
    Mettaton thinks you look absolutely fabulous~! Come and read this book so he can give you some love darling~!