Undertalefanfic Stories

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358 Stories

  • Fallen Girl - Undertale Fanfic by darkkris2020
    darkkris2020
    • WpView
      Reads 52
    • WpPart
      Parts 11
    Maria is the 8th fallen human, followed by the 6 other souls and Melanie. Maria must fulfil the prophecy by completing the tasks to save the underground and restore peace and harmony between humans and monsters. Will Maria survive? Will the monsters see the light of Earth again?
  • Two Birds of a Feather, Fall Together by TheAngstQueen14
    TheAngstQueen14
    • WpView
      Reads 24
    • WpPart
      Parts 2
    Bound by their story. An Ink and an Error attempt to fight fate.
  • Todo por ti (frisk x sans) by Alexfuu
    Alexfuu
    • WpView
      Reads 175
    • WpPart
      Parts 1
    Ha pasado un tiempo desde que rompí la barrera del sub-suelo , aún así no me siento preparada para salir de este lugar...donde he estado tanto tiempo.Unas de las pocas razones por las que me gusta este lugar son los amigos que he hecho...sans...asriel...ellos son los más importantes para mí. (La imagen no es de mi propiedad,todos los créditos a su respectivo autor)
  • Strings of Love (Muffet x reader) by GunFoxGaming
    GunFoxGaming
    • WpView
      Reads 226
    • WpPart
      Parts 1
    Idk i got bored
  • Reacting to Ships! :3 by SansxFriskForever101
    SansxFriskForever101
    • WpView
      Reads 2,825
    • WpPart
      Parts 9
    title says it all.
  • Mettaton x Undyne ......Kinda by SophiaEldenstien
    SophiaEldenstien
    • WpView
      Reads 444
    • WpPart
      Parts 1
    a mettaton x undyne fic. its kinda romantic, but not really. this is a crack ship.
  • ScarletSwap (An Undertale AU fanfic) by DemonicX1
    DemonicX1
    • WpView
      Reads 80
    • WpPart
      Parts 5
    the multiverse is in terminal, universes are being destroyed faster than they are being created. the humans and monsters that once inhabited there destroyed AUs are shot out into the anti-void without any sense of identity or awareness. these abandoned souls were soon corrupted and joined a allegiance which included many of powerful evil sanses. the star sanses (ink, Swap and dream) have no idea about this allegiance they have formed, but do know about the multiverse crisis. so they all split up trying to find the lost souls and return them to there homes, this is were scarlet comes in, he might just be what could stop the crisis for good.
  • NRONK X Michelle Obama Jr. by bludaisie
    bludaisie
    • WpView
      Reads 51
    • WpPart
      Parts 3
    little wedding gift for your honeymoon, enjoy
  • [ON HIATUS] Fallen Devil: An Undertale AU by augustpopz
    augustpopz
    • WpView
      Reads 45
    • WpPart
      Parts 3
    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.
  • Hand in unlovable hand | Killer Sans X Female!Reader by PhoenixQueen0415
    PhoenixQueen0415
    • WpView
      Reads 328
    • WpPart
      Parts 2
    The world you live in is a cruel place, running rampant with criminals, serial killers, and corrupted authority. Good traits such as justice and kindness are few and far between. Stained with a blurry past, you find yourself as a detective, determined to help cleanse the city of its underlying madness. Just when a mysterious new neighbor drags you down a rabbit hole, bringing out the subconscious motive that lay underneath your determination
  • Spamton x Reader by snailspaghetti
    snailspaghetti
    • WpView
      Reads 120
    • WpPart
      Parts 1
    One day, y/n was peacefully babysitting Lancer until disaster struck. Before they knew it, y/n was working for Sans, with one... interesting co-worker. ~ This started as a joke until we had too many ideas and too much fun. So here we are. A bit of stuff to know before reading: -completely sfw -y/n will be gender neutral (so they/them prns) -not triggering/no angst -this is only intended for comedic purposes -other ships that may show up are susie x noelle and undyne x alphys ~ we'll try to update weekly, but it might turn out to be more than that. enjoy!! !!all characters belong to Toby Fox!!
  • Omnipotent Schnee (On Hold) by RestoringAlphatale
    RestoringAlphatale
    • WpView
      Reads 2,864
    • WpPart
      Parts 5
    Ares Schnee was the first born and older twin brother of winter schnee, but when he was born, he had no aura nor semblance leaving his father to abuse him behind his twin sister and mother's back for years when their little sister weiss was born. Having quite enough of this abuse he ran away leaving behind a letter to his mother and sister letting them know that he had left them, leaving them devastated by this. after he left the mansion he ran far away to a nearby forest to which it is infested by grimm's leaving a defenceless child against the grimm, but before they can charge and kill the older schnee he was saved by a godlike entity giving him a offer to become god in which he accept. After becoming a god giving to him by a godlike entity he returns as not a schnee but as a omnipotent godlike being in which surpass the whole planet itself leaving ares no longer a schnee but reborn as the omnipotent god of the multiverse!!!
  • sans au x reader one shots by Fallen49Angel
    Fallen49Angel
    • WpView
      Reads 554
    • WpPart
      Parts 4
    so I'm going to write a bunch of random x reader one shots with the sans I can do lemons so if u guys want that then I'll supply anyway enjoy the stories my friends -Fallen
  • A Million Worlds Apart || AU Sanses x Reader || Rewrite by undeadenigma
    undeadenigma
    • WpView
      Reads 6,887
    • WpPart
      Parts 4
    Original Cover Art: https://www.pinterest.ph/pin/759419555888946911/ Edited Cover: SemiJellyBeanBoii101 "We make our own monsters, then fear them for what they show us about ourselves." ― Mike Carey & Peter Gross [Name] wanted nothing more than power. The overwhelming energy inside of her made her desire more. The desire for knowledge and magic. But unfortunately― it only lead her to fall down to Mt. Ebott. She eventually helped Frisk free the monster from the underground. Years have passed, and her eagerness for magic did not disappear. A certain skeleton was about to find out the truth about [Name], but― Frisk had to r e s e t . === This is a rewrite for my old book― "A Million Worlds Apart || Au Sanses x Reader". I think that book had tons of flaws but it deserves a rewrite. I suppose here it is now.
  • GlitchTale : ERÂŚED by supersusguy88
    supersusguy88
    • WpView
      Reads 52
    • WpPart
      Parts 8
    WARNING : This is the sequel to GlitchTale : Battle Of Gods. Please , first watch GlitchTale Season 1 and Season 2 , then read GlitchTale: Battle Of Gods . I promise you won't regret it ! After the timelines ERÂŚED themselves. A whole new dark universe is created from the ashes of the old timeline , and there's also a brand new enemy they have to face.
  • Different beings ( Charisk fanfic) C A N C E L L E D by jadyn_the_comicer
    jadyn_the_comicer
    • WpView
      Reads 2,407
    • WpPart
      Parts 7
    Two gender neutral kids find each other locked with love but there is always a halt as they are two different beings inside but the same outside. *im sorry if this isn't the best I don't really get involved with undertale, but I just hella love charisk
  • [-Charisk-] by Chara_Blap
    Chara_Blap
    • WpView
      Reads 374
    • WpPart
      Parts 5
    Hey! I'd be a little surprised if anyone is reading this but here we go. This story is based on Chara and Frisk. After Saving Chara, they both and others live on the surface. It is very rushed as It was written in a day for a friend but hey! I just wanna try this out so, it would be really helpful if you guys could leave a review and such. itll help me immensely. Anywhoo, enjoy the story ~
  • Skeleton Love (Sans x Frisk) Discontinued [2016] by CoulsonKnight
    CoulsonKnight
    • WpView
      Reads 518
    • WpPart
      Parts 7
    WARNING: This contains spoilers about the Undertale "Pacifist run" if you want to avoid any spoilers, then get out of here immediately. If you don't know what Undertale is then play or watch someone playing it, then come back and read this Story. About this story is about an "Undertale Love story about, well Sans and Frisk. But someone is in Love. Who is in Love? In this AU Frisk is gonna be a girl and It will be like years later after the "Pacifist Run" The art is not made by me, I just made the cover myself.
  • remixtale|| remix sans|| UTAU|| backstory by nikki2awesome
    nikki2awesome
    • WpView
      Reads 82
    • WpPart
      Parts 7
    "gods, creators, the people on the other side, whatever you call 'em. I only hate one" "why's 'at?" "they've done something terrible to me.." "that is?" a story about one of my own personal aus.