Underfalls Stories

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1.2K Stories

  • Lovely Hatred by ILoveToWriteForLife
    ILoveToWriteForLife
    • WpView
      Reads 413
    • WpPart
      Parts 8
    Y/n fell into the Underground on purpose to find her brother. She soon finds out she was too late. King Asgore's judge, whoever that is, had slain her baby brother. Also, Asgore had let all the souls free once he retrieved her brother's surely trapping the monsters in this prison along with Y/n. She refuses to kill unless it's the one person that took everything away from her.
  • Marked in Red, Claimed in Gold (Mafiafell Sans x Reader) by clubofsnakes
    clubofsnakes
    • WpView
      Reads 2,343
    • WpPart
      Parts 24
    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.
  • Male Fear soul reader x Xtale by ItzKiyusei
    ItzKiyusei
    • WpView
      Reads 1,887
    • WpPart
      Parts 5
    What would it be like if the soul of fear existed in Xgaster universe? Let's find out and see if things change
  • Forced love (Underfell!sans x neko reader) ;E͟͟D͟͟I͟͟T͟͟T͟͟I͟͟N͟͟G͟͟!!!; by deadgoaway
    deadgoaway
    • WpView
      Reads 4,458
    • WpPart
      Parts 8
    Your a neko and you wish you were never born you were abused and bullied but you fought them off and you fell down mount.Ebott and you were in a relationship a year later with underfell sans you had children half skeleton half neko
  • You can't fool me (Fellsans x reader) by AlexRoe030
    AlexRoe030
    • WpView
      Reads 811
    • WpPart
      Parts 7
    This is a story of how you and your little sibling Frisk were having a fun Halloween before you two fell down a hole and changed your lives forever. Can your halloween customers fool the monster of the underground or will they be able to see right through it and try and kill you? Let's see...
  • A Shattered Ruby by KTamao20
    KTamao20
    • WpView
      Reads 361
    • WpPart
      Parts 5
    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...
  • Stardere High School [ON HOLD] by EddHead24
    EddHead24
    • WpView
      Reads 5,542
    • WpPart
      Parts 20
    [THIS STORY WILL BE ON HOLD SADLY> MOSTLY BECAUSE I HAVEN'T BEEN IN CONTACT WITH THE UNDERTALE FANDOM FOR A FEW YEARS NOW SO I"M NOT INTERESTED ON WORKING ON THE STORY. I WILL BE BACK SOON BUT IT WOULD TAKE AWHILE. I WILL BE ATTEMPTING TO MAKE A NEW SERIES] This story will be in 1st person and I will try to do my best ------------------------------------ this story will be about dere's of each kind (but I only know three and That's what I'm doing for now
  • Ask Underfell Yellow by Nightmare_S_42
    Nightmare_S_42
    • WpView
      Reads 524
    • WpPart
      Parts 7
    You get to be disembodied voices following Fell Clover on their journey through the Underground. You can ask questions through the comment section of each page as well as my anniversary comic on Comic Studio! (the link to my account is in my bio) This story will include my interpretations on the Fell versions of Undertale Yellow characters. The cover art is by me :)
  • Games [Fell!Sans x Reader] by AyePapy
    AyePapy
    • WpView
      Reads 3,294
    • WpPart
      Parts 9
    Your fist clenched, unsure if you should punch the living daylight out of him, "Who said I was playing your game." "you don't have to say anything, you're automatically playing," He took a step back and walked past you with a lazy wink. "but at the end of every game, i always win. and you better believe it, sweetheart, i'll be leaving a permanent scar on your heart." [Title used to be "Commitment"] [Credits to: Undertale by Toby Fox Underfell adopted by the community Artists, editors and singers/band]
  • Sans Boyfriend senarios (multiple aus)[undertale] by Virus_the_error
    Virus_the_error
    • WpView
      Reads 6,769
    • WpPart
      Parts 7
    This is a senario book including : Undertale Sans, Underfell Sans, Underswap sans, Gaster! Sans, Outertale Sans, Ink! Sans, Error Sans and last but not least Fresh Sans! There is probably going to be some profanity. Comment about any sans you want added and I might add them! (also located on my quotev)
  • AU sans v! x reader by shadowcrossover
    shadowcrossover
    • WpView
      Reads 47
    • WpPart
      Parts 3
    A girl no older than 21 living in a 4-story big bungalow house all alone. As she blankly stared at the interior of her house with eyes withholding more pain than any being could bear, reminiscing in her old memories with her so called "family" that was once all living under one roof of this very house now empty. (y/n) flinched hearing loud thuds and groans 2 levels below her from her room, and used her senses and perception to estimated how many intruders were downstairs as she walked out her room with a sigh, hands in her jogger pants pocket, going down to see something she thought would be a dream. 'how bothersome' she thought now knowing she wont be living all alone anymore. -the art and characters do not belong to me
  • Underverse by FanficGeek42
    FanficGeek42
    • WpView
      Reads 1,767
    • WpPart
      Parts 14
    My own version of underverse
  •  Art Oh  Art Not Completely Undertale Anymore But I Definitely Still Draw It by DeathTheKidd6
    DeathTheKidd6
    • WpView
      Reads 852
    • WpPart
      Parts 30
    I has draw and redraw stuff
  • Underfell Stockholm Syndrom by MissSansPie
    MissSansPie
    • WpView
      Reads 302
    • WpPart
      Parts 4
    tu es une jeune femme , qui par , la force des choses , vas tomber dans l'underfell : un endroit tres hostile ! mais tu vas faire des rencontres qui te permettrons d'accomplir de grande choses ! attention , si tu es facilement choquable ne lis pas cette fanfiction ! :)
  • Butterfly - Orange [COMPLETE ✔] by tRaSh_4U
    tRaSh_4U
    • WpView
      Reads 146
    • WpPart
      Parts 3
    Edge keeps trying to make Papyrus goes away. When figuring out Papyrus is in trouble he rushes to save Papyrus, trying not to seem weak to other monsters. Butterflies swarm him when he doesn't share, and admit to his feelings about his brother, his ex-friend, and Papyrus. What will Papyrus do when Edge is struggling with his own thoughts? READ TO FIND OUT Book 1: Red - https://www.wattpad.com/story/211846631-butterfly-red Book 2: Orange (You are here) Book 3: Yellow (Not out yet) Book 4: Green (Not out yet) Book 5: Light Blue (Not out yet) Book 6: Blue (Not out yet) Book 7: Purple (Not out yet) 🦋Butterfly Note🦋 - The diseases Batafuraikakomu can start and kill you the day you're infected with it. It can kill you in almost two weeks. It's contagious to vulnerable monsters with someone they care for deeply. This disease only works for monsters, and not humans. If you survived the disease best to visit a human doctor for a check-up and bodily clean up so no one else is infected with it.
  • Bone-y love  [UF Sans x US sans] (18+) by super_magic_girl
    super_magic_girl
    • WpView
      Reads 1,613
    • WpPart
      Parts 7
    I think u know what will happen
  • Zyraverse - My Undertale OC and her Alternative Versions by Zyraeth
    Zyraeth
    • WpView
      Reads 12
    • WpPart
      Parts 1
    → A simple book I made for myself to stock all of my Zyra's designs accordingly to their univers, and description! Feel free to check and ask about them :>
  • Just Stay. by Jaxxhies
    Jaxxhies
    • WpView
      Reads 12,492
    • WpPart
      Parts 29
    Classic has been seeing his friends die, over and over again. The human keeps on resetting. In one reset, it all goes wrong. He ends up in a whole new place than he was. The place looks the same just edgier. He finds someone that looks like him and his brother, just edgy. Classic's life changes completely. But soon, he has to go.
  • underfell papyrus meets undertale by YeetisWhy
    YeetisWhy
    • WpView
      Reads 163
    • WpPart
      Parts 10
    where underfell meets undertale and undertale knows about the au's and undertale gaster is out of the void and will uf sans forgive there gaster for on what he did? Will you guess right make a guess and then read threw. Also this was very hard to make with school and so much more stuff happening.
  • In My Dreams {Underfell!Sans x Reader} by _Usagi_Kitsune_
    _Usagi_Kitsune_
    • WpView
      Reads 1,280
    • WpPart
      Parts 9
    You had seen him in your dreams, not just once, not just twice. It had been a long time since you'd last seen him, but deep down, you knew that he wasn't gone. {WARNING: There is most likely going to be CUSSING, and VIOLENCE in this book.} {Setting: Right before monsters escape the Underground}