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  • That Damn Skeleton! (Sans X Reader)
    175 2 3

    Him. The one that you've been talking to for years now. Always behind the ruins' door. Of course you had assumed he was a monster. But.. Not a skeleton! How is that even a monster? Its part of a human's body. He's sweeter than you'd imagine him being to you, even helping you leave the ruins, for good...Yes of course y...

    Mature
  • CivilTale [AU] (FOR SALE!)
    717 30 9

    When the Civil War of the United States matches up with the War between Monsters and Humans. Info + story An AU that I literally made up in the shower one night...

  • Love Me Instead [Sans VS Gaster!Sans X Reader] Part 2 (EDITING)
    18K 922 26

    Please read part 1 if you haven't! When a mishap in a reset happens and a character from another version is transported into the current world and timeline, what happens? Gaster!Sans, bad-skele-boy from EchoTale is confused to see that he had landed in a different, yet familiar world: Undertale! Apparently, in meeting...

    Completed  
  • Love Me Instead [Sans VS Gaster!Sans X Reader] (EDITING)
    224K 7.6K 55

    When a mishap in a reset happens and a character from another version is transported into the current world and timeline, what happens? Gaster!Sans, bad-skele-boy from EchoTale is confused to see that he had landed in a different, yet familiar world: Undertale! Apparently, in meeting with his 'original' version, they...

    Completed  
  • Aftertale Sans x Reader
    200K 4.9K 52

    This is for those who think aftertale sans is either hotvor adorable.

    Completed  
  • All Tied Up (Error Sans x Reader)
    170K 4.3K 23

    > Your just a regular human that fell down the hole that supposed lead to the underground, you come across many obstacles and find yourself in much of a sticky situation, more or less your tied up. •IMPORTANT• Hello wattpad users, this is actually the first story I'm actually making. So I'm sorry if it's suckish or te...

  • Dying Light (Sans X Reader) (sad)
    162K 5.1K 35

    Like the title says, it's gonna be sad. But there is a happy end to it I promise!

  • Undertale {Sans X Reader}
    132K 4.4K 22

    {Please remember, this is my first Undertale fanfiction. I was still new to the game and fandom itself, so I didn't have all the lines from the characters memorized by heart just yet. I'm not going back to change anything, because I don't think it'll be the same if I change it. Thanks for understanding and please enjo...

    Completed  
  • Fallen >> An Undertale FanFiction (Sans X Reader) (Discontinued)
    8.1K 285 8

    (Y/N) fell down into the Underground when she was a child. After a near death experience and being saved by a goat-like woman, named Toriel, (Y/N) decides to stay with her. Nearly ten years later, (Y/N) starts having nightmares about a flower, a blue light, and a name. Chara. Then another human falls. Their name is F...

    Completed  
  • Princess of the Underground (Gaster!Sans x Female Reader)
    146K 5.9K 55

    [Y/N] lived with her adoptive mother Toriel for a while. How long is that? About three years. Throughout the time, the monsters in the Ruins know her as if they were her siblings. Flowey became way nicer each day around her, losing his soulless behavior. He cares about her so much he promise to protect her. All was...

    Mature
  • Undertale: Twin sister
    191K 6.4K 1

    After Frisk goes missing, Caitlin, Frisk's twin sister goes looking for her in the the last place she saw her. MT Ebott, the mountain of dark legends, she finds a necklace that belonged to Frisk on the ground. Just like Frisk, Caitlin tripped and fell into the Underground. Caitlin finds things she never knew existed.

    Completed  
  • Undertale- Reset
    104K 4.2K 24

    "Promise me one thing- just one thing only." Frisk nodded vigorously. "No one can know about this whole reset thing. Not Papyrus, not Asgore, not anyone. It would basically bring this world to the point of falling to pieces at our feet. If we weren't trapped between time and space already, very few of us wouldn't be a...

    Completed  
  • A Long Road (Underswap!papyrus X Reader)
    64K 2.1K 22

    A curious child fell down a hole, simple story what happens next is all up to you (y/n) and you alone.When you meet the skelebros you felt like you've met them before you have no idea where from however they seem similar but different. Shall you stay or will you leave the underground forever?

    Mature
  • UnderFell Sans X Reader
    42.6K 691 7

    MEH just another function ha ha a so hope you guys enjoy! (^v^)(^v^)(^v^)

    Completed  
  • Papyrus and Sans - Underfell
    1K 27 1

    .....What the hell?

    Completed  
  • The Rise of Underfell
    161 5 2

    This is where everything went wrong. Before Frisk wakes up to the twisted reality where their friends of the underground have changed, they are visited by a mysterious entity. In order to fix the mistakes they made in the past, they must make a choice and fulfill their destiny through one final reset. An Underfell Fan...

    Completed  
  • Underfell : Loving the Monster
    278 7 26

    You smile as you see pretty yellow flowers you see it leads a trail , because your curious you follow it all the way to a cave you walk around then fall down a hole you close your (E/C) eyes. Your stuck in a Underfell Time line , can you warm the hearts of the 'monster' and make friends? Or even fall in love on the wa...

  • Underfell
    9 0 3

    So this is about da Human frisk falling down to the underground and meeting all these scary and horrifying monsters, but soon she befriends all the monsters and I'll leave the rest of the story for you guys to read in my Underfell book Characters: Sans papyrus ASGORE Toriel Undyne alphys and more. BTW There will be no...

  • The Reset {Underfell}
    6.3K 349 29

    Frisk shut their eyes as their hand pressed the reset button. They were back at the start, but something was off.....something felt...different, something was not right. Their world had been turned upside down, everyone acted strangely. The once beloved and caring Toriel, was now bitter and ignorant. The, calm and chi...

  • HP Determined ~A SansxReader~
    20.4K 623 15

    Monsters and Humans have lived together for some time now, not saying that they all like it that way. Most of them don't actually. You, on the other hand, enjoy their company. You live with an adoptive Monster family, and on the way meet Monster friends. Until one day, one of them becomes more than "just friends."

    Completed  
  • Neko!Sans x Neko!Reader
    32.8K 1.1K 6

    Monsters came to the surface and Y/n could finally come out of her hiding spot. Y/n was a neko,mostly classified as monster. What happens if she meets a neko skeleton?

  • Enchanted Bones
    22.4K 699 14

    You were frightened and fed up. These monsters kept on attacking you to try and kill you but you hadn't even done anything! Well, time to take matters into your own hands. Things escalate and get out of hand when you try to 'fight back'. What happens next changes your life forever.

    Completed  
  • Why
    188K 7.4K 53

    (Got ranked #607 in fanfiction) This is about the cherryberry ship. Red is just standing around one day whenever Blue randomly pops out nowhere in to his life and won't leave. Blue is determined to befriend Red and maybe take it a little bit further then friendship. This is a first person book that changes from Blue's...

    Completed  
  • "чσu'rє mínє" (HoneyMustard)
    33.3K 673 8

    This Is A Fan Fic For My Favorite Undertale AU Ship Honey Mustard! (US!Papy x UF!Sans) -Disclaimer- UnderSwap Papyrus and UnderFell Sans do not belong to me. UnderSwap Papyrus and Underswap Sans belong creator(s); Morty. UnderFell Sans and UnderFell Papyrus belong to multiple unknown creators. Also, the art shown for...

    Completed  
  • underfell! papyrus x reader
    15.6K 330 7

    the title says it all folks. ps: made the cover myself

  • Northern Downpour (Underfell Sans x Reader)
    173K 5.1K 42

    (Y/n) goes to Mt. Ebbot in search of her brother Frisk. But what she finds instead amazes her.

  • masochist Underfell Sans X Reader
    3.5K 36 1

    I thought of this when I was watching a video on YouTube XD I thought it would be an ok one shot J-just read it ok

    Completed  
  • Her Fate [FlowerFell FanFiction] BOOK 1 [REDO DONE]
    25.9K 1K 30

    Ever since Frisk landed in the world of UnderFell, every single monster wanted her soul. That's until the one day she died. After the reset, she appeared with a flower on her arm. And that's when, Sans noticed something strange going on with her. Insanity slowly crept up her back, making her think that she would die...

    Completed  
  • Underswap - the different timeline
    10.7K 652 28

    What would happen, if two humans fell into the underground? Chara climbed up Mt.Ebbott, after being teased by the kids that they wouldn't be able to climb it. No one ever comes back from that mountain, and They know that. Chara climbed it sucessfully, but was pushed into a giant hole. It led them straight into the...

  • Sans x Reader (Undertale Fan-Fic)
    23.9K 816 11

    This is about Sans (Undertale) and the reader coming closer together. This story is one of my best and I hope you guys enjoy.