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1.2K Stories

  • UnderTale High Skoolz (Reader Insert) by Nellie_Cake25
    Nellie_Cake25
    • WpView
      Reads 17,502
    • WpPart
      Parts 22
    [Warning: Characters in the story are human!] Snowdin High School was ranked the most boring schools in Snowdin Village itself. You, a normal student attending the school, realized why. No one participates in spirit days, the jocks aren't even motivated enough to even try during sports seasons, the same old same old served in the cafeteria daily, and other factors that resulted to make the school a not so happy place to be. Suddenly, new students were entering the school at the start of the year, making things a lot more interesting. Some like Undyne pushed people harder after beating the whole team in one go while others like Mettaton brought back fashion in a "uniform-only" campus. A single parent with two high school children took the opportunity to be a teacher, and thus, created a wacky learning environment. For some reason, everyone wants to befriend Asriel, a boy who can communicate using flowers and has a talking flower of his own. You and Frisk, a male friend of yours, decided to adjust to the new students. The results are hilarious beauty in the eyes of the whole school. Now you ask me: What can go wrong? Undertale (c) by Toby Fox; Human!Undertale Art by Matocc.tumblr.com
  • Asriel Deku  by dogday2006
    dogday2006
    • WpView
      Reads 28,849
    • WpPart
      Parts 31
    Disclaimer: I don't own mha or Asriel they belong To their respective creators
  • Starting Over by SpiritWolfNura
    SpiritWolfNura
    • WpView
      Reads 550
    • WpPart
      Parts 11
    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?
  • Undertale; Despair AU 《REWRITE》 by LocalUndertaleAddict
    LocalUndertaleAddict
    • WpView
      Reads 1,851
    • WpPart
      Parts 45
    What if there was an anomaly in the Underground? No, not Frisk. Not Chara either. Someone else entirely. How could a few measly children stand to this supposedly immortal foe and save the Underground from destruction? Is it even possible to do so? Only one way to tell... ~o0o~ Disclaimers before you start! •There is NO fanon ships. That means no Soriel, Papyton, etc. The only ships are Torgore (in the past) and Alphyne. •This is NOT an x reader. I dislike those types of stories. The reader will have no part in this, and they will not be shipped with anyone. •This exists outside of canon to an extreme. For example, Frisk is the second human and not the eighth. •There will be OCs, but only for a few humans and they still technically exist in normal Undertale. •There is a sequel. I'm planning on rewriting it after this one, as it is much more random and definitely needs it. Clanky, plot holes/retconning, etc. It's more of an OC thing, to explore them and their issues, than an Undertale thing, but it has its similarities. •There will be some explicitives. It won't be unnecessary or excessive, only when it fits the situation and character. I will not be using any slurs, as that's just plain disrespectful, even if some of them apply to me. Credits: Undertale, obviously, created by Toby Fox and Temmie Chang. "The Time Before" by ANinnyMouse42 is the backstory for Sans in this AU with some adjustments (mainly since that was very close to my original idea before I read it and I don't want people to think I copied their masterpiece or smth, if you haven't read it please do so, it's really good). Some things will be in reference to the other books in the trilogy or "From War to Science" by Emotistic-optimistic. If you haven't, read that too. It's really good (along with its sequel). The cover was made by me! Have a good day! (Also, the title is a placeholder, if anyone has any ideas that make more sense, please let me know.)
  • Something Hidden Female chara x male reader - By Shyboxes by S2010JD
    S2010JD
    • WpView
      Reads 292
    • WpPart
      Parts 38
    (Slightly edited version for better reading) (Disclaimer) This is by @Shyboxes. I am archiving this with permission so people will still be able to read it. :) I will also fix some spelling and dialogue errors to make the reading experience better :) I also may add my own personal comments at the end of the parts (CFTA = Comments From The Archiver), just sharing a bit of the experience of the process of archiving this story and my own thoughts :) ----------------------------------------------------------------------------------------------------------------------------- • I reccomend you do not read this, this is my worst work yet despite it being my first. There is another story on my profile that is under development and editing. Other than that everything else here has remained untouched for over two years. DISCLAIMER: i do not own undertale nor any videos, pictures, intro, etc. And i reccomend checking out the original creators You are an ordinary teen or are you with a weird crystal appearing right next to your bed with it telling you strange things and having an encounter with a flower saying you soul is special are you really normal and is the senior year of high school really be normal with monsters starting to teach and attend school will your life really be normal?
  • From War to Science {UNDERTALE} by emotistic-optimistic
    emotistic-optimistic
    • WpView
      Reads 21,986
    • WpPart
      Parts 20
    Is it still considered a backstory if the protagonist doesn't exist? Companion story to "Reset".
  • A Tree, For Us (Sans X Reader) by TheAbandonedQuiche
    TheAbandonedQuiche
    • WpView
      Reads 16,445
    • WpPart
      Parts 35
    CONTAINS SPOILERS FROM BOTH PACIFIST AND GENOCIDE RUNS After a horrible situation, I (Y/N) scaped from home to avenge my (sibling). In a failed attempt, I got lost and fell through a hole, in there I found another world... "the underground". I meet many friendly monsters, one, specifically, changed my whole life. Both of us will try to give the monsters the liberty they deserve. And this is how all happened... (Cover made by me :3)
  • Yandere Undertale Oneshots =] (Discontinued) by Yosieplayz
    Yosieplayz
    • WpView
      Reads 13,987
    • WpPart
      Parts 21
    [3rd book] So it's yandere Undertale One shots because I can. Also because some characters just kinda need to be more recognize. Slow updates? Or it will just Update at random. Also there might be some errors so sorry about that. Started - 4/9/23 Ended - 5/31/24 I don't own Undertale or the Characters! Not the Cover I just edited it!
  • Undertale Shorts by ANinnyMouse42
    ANinnyMouse42
    • WpView
      Reads 44,917
    • WpPart
      Parts 30
    A bunch of Undertale short stories! ... Which, despite the cover, are not only about Frisk, Flowey, Alphys, and Sans. There are other characters in there too. Aww, who'm I kidding? Probably 90% of this is skelefam fluff 'n' feels.
  • My flower queen~ Chara x Asriel fanfic (and a bit of Frans) (DISCONTINUED) by littlesunflower45
    littlesunflower45
    • WpView
      Reads 4,038
    • WpPart
      Parts 11
    AND HOW I PROMISED IN "I CAN'T LOSE YOU NOT AGAIN", HERE IS THE CHASRIEL FANFICTION! This is a different storyline from Undertale. Everything in the humans' world is fine...but not for two girls. Two twins, that want to change the world, but they are alone...so they decided to walk to Mount Ebott...the first girl, she has two pink cheeks and a green sweater with a yellow stripe. The second one has a blue sweater with two pink stripes...they are DETERMINED to stay alive, and someone to love doesn't hurt...
  • Love, not LOVE... (Reader x Flowey) by ThatGuyWithMuffins
    ThatGuyWithMuffins
    • WpView
      Reads 15,911
    • WpPart
      Parts 18
    Flowey watched them....Flowey watched Frisk as they spared everyone in the Underground. He absorbed the souls. He was beaten. He turned into the God of HyperDeath. He was beaten. Everyone left the underground. He was forgotten. But it seems that another human fell. That human is you. Will Flowey let you through? Or will he try to stop you. Can you show him love when no one else could? And finally, will he follow you up to the surface with your friends..... ///Howdy! This is my first story soooo I might not get the chapters done daily. They might be inconsistent, BUT! I really hope that people enjoy it anyway.\\\
  • ERASE | undertale FF | by AikoIchiro
    AikoIchiro
    • WpView
      Reads 2,426
    • WpPart
      Parts 16
    Za pomocą przycisku 'Erase' Frisk cofa się o rok, gdy Chara spokojnie mieszkała z Asrielem i jego rodzicami w ruinach. Frisk wie, że tylko ona może zapobiec efektowi motyla, i nie dopuścić do nieszczęść w królewskiej rodzinie... Na podstawie gry Toby Foxa.
  • Undertale and Deltarune Tickle Story Requests by Nman1993
    Nman1993
    • WpView
      Reads 7,543
    • WpPart
      Parts 26
    ***CLOSED UNTIL FURTHER NOTICE*** Cover photo drawn by FURTINIYA27. Just like my main series of stories. Only this time, they're requested by you; the readers! :D Yes, in addition to writing my own personal ideas for stories, I am also open to ideas from fans. So please, feel free to make one or more requests if you'd like. :) But before making a request, please make yourself of aware of the rules listed in the book itself. It's very important that you follow each and every one of them!
  • Undertale-Mermaid's Form by Thecrystopilisempire
    Thecrystopilisempire
    • WpView
      Reads 1,793
    • WpPart
      Parts 18
    A young teen girl named Sonja who fell down to the Underground which she has the ability to transform into a Mermaid when touching water. Sonja also has powers which she has heating and freezing powers which it'll help her out in her journey at the Underground.
  • Undertale: REWIND by SabrinaSelene
    SabrinaSelene
    • WpView
      Reads 109
    • WpPart
      Parts 8
    It's been 3 good months of life on the surface with everyone. However, Frisk is discontent and desperately yearns to save Asriel. Suddenly, this wish is made possible with their discovery of a new ability "REWIND", all the way back to when the Royal Family still included Chara as one of them ... (Cover image by R.B)
  • Roots of Evil ~ Undertale FF by GoldenCael
    GoldenCael
    • WpView
      Reads 566
    • WpPart
      Parts 5
    Flowey [Serial Murderer], The antagonist of the Underground, might not be the roots of evil. Maybe, someone else is.
  • 'Being A Pet All Over Again' Underfell Sans X Reader 'Book 2' [SLOW UPDATES] by sentifrost
    sentifrost
    • WpView
      Reads 52,158
    • WpPart
      Parts 10
    [Disclaimer that this book is very old nd poorly written, please keep that in mind!] Sequel to 'Shy Pet' so if you haven't read that, I suggest you do! After Y/n had died at the hands of Toriel, she has come back to her last SAVE.That was before anything had happened... Before she'd met Sans. So now, remembering to SAVE, she has to repeat everything. Being Sans' pet again. But this is a different timeline entirely. Papyrus hates her, and wants to destroy her. Mettaton wants action, Alphys wants a test run, Toriel wants more blood for blood pies, Undyne wants to overthrow Papyrus, and Sans... Sans just wants you. But different timelines have different effects. He may have to SAVE more then you... {If you are reading this story on any platform other than Wattpad, you are very likely to be at risk of a malware attack. If you wish to read this story in it's original, safe form, please go to Wattpad. Thank you.} Started ~ 10/3/19 Finished ~ Not yet T-T [ACHIEVEMENT(S) ~ #2 in #Temmie #2 in #Fellpapyrus #1 in #Paps #3 in #02
  • Nightmare (Undertale Story) by Sarcasm_S
    Sarcasm_S
    • WpView
      Reads 6,898
    • WpPart
      Parts 12
    Sans is a pun loving skeleton who loves to sleep and slack off at work so when he started to change everyone began to notice it very quickly. They all brush it off thinking that it was nothing serious but they could not be more wrong. All characters of this story belong to the game Undertale made by Toby Fox. The only character that I made up is a demon in the story. Enjoy reading! :3
  • You've Changed Me||ONHOLD by Rosu-chan
    Rosu-chan
    • WpView
      Reads 24,271
    • WpPart
      Parts 15
    A human girl named Frisk, was curious about the hole on Mount Ebott. As soon as she got to the top of the mountain...she fell in. Then she will meet the creatures of the underground and maybe they might change her mind about her choice. These characters don't belong to me. They belong to Toby Fox. I'm just using them for my story. Also in this story, Frisk and Mettaton are girls. If you don't like it, I suggest you don't read it. - Rosu
  • The First Fallen Soul (English Version) by EvanescentCharacter
    EvanescentCharacter
    • WpView
      Reads 883
    • WpPart
      Parts 9
    This story is a prequel to the AU "The Soul of Love" focusing on the past and the origins of Asara's mother, Chara. You will discover her childhood on the surface, her fall to the Underground and her rise as the future queen of monsters. It is highly recommended to have read "The Soul of Love" before this story, as you may miss many references and important elements for the lore understanding. Notes: - The TSOL project has been abandoned sadly but i still want to thank sincerely the people who participated in this adventure. May your path be blessed by determination. - The cover artwork was designed by Youm, the official AU's designer! Many thanks to her for her great drawings! - Undertale is owned by Toby Fox. - I only own my OC's and the script. - The artworks illustrating the chapters belong to their respective owners. - This story may contain violence, sadness, and despair, so if you're sensitive and easily affected, I don't recommend you read some of the passages. Translation and correction by TSOL team: Alboy, AgileGhost, Fentoeil, Louis, Myuliana, Sudden Spice, Xesterman, Youm.