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  • Broken Souls
    122K 4K 32

    Set in the HorrorTale AU. When a broken human girl finds herself trapped in a world of bloodthirsty, ravenous Monsters, will she get away with her life? Or will she be just another broken Soul, lost to the pestilence and famine? Horror!Sans/Horror!Papyrus x OC/Reader **GORE AND FUTURE LEMON WARNING**

    Mature
  • Magic Humans and Monsters (Sans x Reader)
    13.1K 699 40

    -FIRST BOOK OF THREE- Ever since the War, magic humans have been training to kill all monsters when they escape. They've even built a special school designed for teaching young magic people how to use their powers for destruction. Y/N was a magic person, born of nonmagic parents. But Y/N is not a vicious person and d...

    Completed  
  • UnderTale AU Sans X Reader
    25.1K 419 5

    Read to find out ;)

  • HAPPY FUN TIMES (Au sanses x powerful reader).
    13.3K 237 17

    Here you will see many "fun","happy" times, the sanses make you laugh, cry, scream in frustration. ANYWAY , here's your backstory. Your parents abused you UNTIL you decided you were having no more of it. IN SHORT you KILLED them. Now you earn money as a hitwoman and a engineer. They earned you lots of money so you...

  • Smol sans and a fangirl (a bitty sans x reader story)
    31.7K 1.1K 13

    This is an alternate version of you, from a different universe, and yes things in this universe will be different from your current universe. Anyways, now to the bitty part...so, how this version of you comes to meet bitty sans is...bitty sans winds up traveling from the bitty universe to this one, via running away an...

  • The Queen Of Crime (Mafiatale Sans X Reader)
    65.5K 2.4K 22

    "If you like someone for a reason then you have a crush But if you like someone for no reason then you are in love." Chara and (Y/N) were the Queens Of Crime in the town of Duran. They were the best duo that ever existed, but what happens when (Y/N) runs into a certain monster mafia during a bank robbery and a smiling...

    Completed  
  • Rescue (UnderFell!Sans X Reader Fanfiction)
    75.9K 3.2K 32

    It was supposed to be a search and rescue with your two closest friends. With your 'brother' Frisk missing now two days and that foster home giving less than a damn, it was up to you and your best friends to follow his one clue. But what happens when one little clue leads to a situation larger than life? Will you surv...

  • Romeo and Roulette (Mafiatale Sans x Reader)
    68.4K 2.5K 37

    There are certain street rules branded on the hearts of the people of Chicago. Certain rules like always watch your back. The city is thriving with mafias, all of which have a rivalry against each other. Each Mafia has there own contracts and if someone steals it they're dead meat. But what happens when the mafias ha...

  • A Dream Come True (Discontinued)
    30.1K 511 24

    Hi! my name is -Y/N-! I'm a huge fan of Undertale and its Au's I often like to think that they're real no,I belive that they're real!

  • Never Go Back (Au sanses/Papyrus' x reader)
    52.4K 2.2K 18

    You are a doctor in the emergency department living in the city of Mount Ebott. You live with two magical skeleton who defy any type of logic and have a sleeping schedule so weird it almost matches up to the weirdness of the skeletons. After a very long day of work you return to find several more science defying skele...

  • Life in a forest ( Au sanses x reader x au papyruses )
    30.8K 653 13

    An au sanses x MONSTER reader x au papyruses? Papyri? A fanfiction, it is not self-indulgent. So if your just lookin for some fanfiction to put yourself in, here it is. :)

    Completed  
  • A Skele-Ton of Problems (Papyrus/Sans AUS x Reader)
    93.9K 3.2K 31

    It was your normal, average day. You were staying at a friend's place while she was away on some adventure in Europe. Next thing you know, some uninvited guests show up and are unable to leave. Why? Well, who knows? All you know is that you've got to deal with them for as long as they're staying. Having some excitemen...

  • Save Me From The Dark (Swapfell Sans X Reader)
    12.6K 273 13

    YN LN is a beautiful girl with horrid memory loss. She has no living relatives, and has been abused all her life. But when a certain skeleton saves her from the worst beating of her life, she feels like she's known him forever. But when something more than friendship begins to bloom, new obstacles enter their lives in...

  • Into You『 AU Sans x Badass!Reader 』
    129K 5.7K 17

    • Art is by kane__i on Twitter • [Fem!Reader] 『 The group of skeletons were taken aback by the unexpected appearance of who exactly? You, of course. You were minding your own business as usual. As an athlete, you had to keep your body in shape, especially when you have an upcoming MMA event to partake in, so when you...

    Mature
  • I want to go home.... (Undertale AUs x Reader)
    34.1K 981 16

    You're Frisk's friend, who jumped down the Underground. Not wanting to leave him alone, you jumped after him. After a lot of pacifist routes and resets, you woke up in a place which seemed to be the ruins you knew, but soon you realized that you were wrong. You'll switch between different AUs, everytime something seri...

  • Lockdown (Prison!Sans/Papyrus/Gaster x Reader)
    29.7K 1K 9

    You weren't THAT bad of a person. I mean, you blew up a few things, and killed a few people, but that was on accident! Course breaking out of prison about 8 times wasn't, you have to admit that. So, for all your trouble, you heard you were being sent to Ebott Penitentiary, the most high security prison in the world. ...

  • Swapped Over
    36K 1.9K 17

    Having little to no memories on what happens, you wake up to find two skeleton brothers who look awfully similar to yours. Confused and slightly disoriented, you later discover that you had been dragged out of your universe and into one that looks the same, except everything is Swapped Over. *Updated Description Avera...

  • Daughter of Death
    115K 6.7K 47

    Cover artist: punny-puntasy ! (TOLD IN YOU/YOUR) A reaper, a few gods, and a bunch of skeletons. The life of a reaper wasn't boring to her, everyday she would gather souls and lead them into eternal rest, and repeat. She watched creatures and Humans die, easily surpassing their lives and meeting once again in the un...

  • a bit of love (A Bitty Bones Story!) {Might End Up Remaking This....》
    31.8K 999 20

    ● Currently #5th place in Bittybones● □ currently sitting at #65 place in Cherry□ ♤ and, Currently sitting at #319 in Cuteness♤ ~~~~ She had been thinking of getting one for a while now but, she didn't expect to have one given to her by some random stranger! --- Maria Lovelock was a young, lonely woman at the oncoming...

  • A shadows Tale (NaJ Sans x Shadow Weaver!Ultima Werewolf Reader)
    7.9K 207 5

    Y/N is a shadow wolf a type of werewolf that is a 1 in a million chance to be born and add another million for a shadow weaver. The Som

  • New soul
    47.6K 1.5K 17

    [y/n] [l/n] was born with the soul of creativity but one day, fear took a massive toll on her. Now she is taunted/bullied/threatened because of her soul...half creativity, half fear...One year later, [y/n] was transferred into a school called Underhigh, will [y/n] find friends or enemies? This is my first book so ple...

  • Bit-ter Memories
    29.6K 1.3K 7

    You had to say, you really hadn't been looking for a job when you first entered the Adoption Center. Yet here you were, up to your knees in bitties. What's the worst that could happen? Cross posted on AO3, sporadic updates.

  • My Itty Bitties
    100K 5.1K 16

    A box has been left at your doorstep. thinking that someone must've given you the wrong mail, you take it inside and wait for someone to come by and claim it. When a week pasts, you're torn between opening it to see whats inside or return it to its sender-The problem? There is no return address. so you open it while e...

  • NaJ Underhigh "Your Life Story" (AU sanses x Fem!reader) [COMPLETED]
    170K 3.6K 45

    Your name is (Y/n) you have no idea of your past all you know is that your "dad" is W.D. Gaster and your "brothers" are Gaster Sans or Gasts/G and Cross Chara and your "mom" is Arial. You have to go into a new school called Underhigh. Your life was fine and you were happy with that. Through your days in going to Under...

  • Broken [Sans Aus x Reader]
    137K 5.3K 20

    [ Sans AUs x Reader ] This wasn't what you expected - this isn't what you wanted. You wanted to rest, to finally, finally breathe, relax. But apparently life had other plans for your sleep deprived self. It wanted to trap you, it wanted to make you see - to make you realize, you're life isn't what it seems to be. Yo...

  • Hidden for so Long (Sans AU x Reader) {Discontinued}
    193K 5.4K 48

    Please check out the remake of this story. Long ago the earth was ruled by two races, Humans and Monsters. One day war has broken between the two races. After a long battle, the humans...wait no the monsters were victorious. The monsters seal the humans into the underground using a magic spell. Humans were the one stu...

    Completed  
  • ♥~• A Competition •~♥ [Highschool Au Sans X Fem!Reader][EDITING]
    68.7K 1.7K 23

    Your Y/N Wing Dings the younger daughter of W.D Gaster.... Gaster!Sans or G Wing Ding your elder brother... Summer is now over!.. Your Father enrolled you to a school called "UnderHigh"... Where your brother G is there. 'UnderHigh' a school for Humans and Monsters... G told you and warn you about how things are going...

  • Start again (Naj!au!Sans x Neko! Reader) ((Finished))
    188K 4.6K 145

    (Y/N) is a neko who lives with her cat Ayumu. (Meaning:Walk dream, vision) She lives in her cozy home with two bathrooms, a bed room, a living room and a kitchen. (Y/N) is transfering to a new highschool called Au!High because of an incident. Her old school got burned down to the ground. She is a very clever girl and...

    Completed  
  • NAJ (au sans x reader)
    55.3K 1.3K 51

    you... no spoilers!!! read it dude