Underswap Stories

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1.2K Stories

  • How far would you go for love(underswap frans story) by notmyproblem4U
    notmyproblem4U
    • WpView
      Reads 61
    • WpPart
      Parts 6
    In Underswap AU chara fully gained control in her body and stopped frisk to erase this timeline. she did a pacifist route and in end saved everyone.(includes MK too) Although frisk didn't like this after all she was filled with hate. How could blue can go far for her to change her. Could he able to change her.
  • When Love Is Hurting~[underswap paps x reader] by knivesstab
    knivesstab
    • WpView
      Reads 178
    • WpPart
      Parts 3
    I've read alot of x readers for underswap paps and none of them quite fit, so this is my try at it.
  • Before the apple accident by Broken_star
    Broken_star
    • WpView
      Reads 6
    • WpPart
      Parts 1
    This story starts before the apple accident. Everyone knows Nightmare, the evil and lonely twin as everyone says he is. But what if a skeleton girl befriended him. A friendship forms between the two of them, but after a while, Nightmare finds himself falling for the girl and lucky for Nightmare, that girl had also gotten feelings for him. Now how will just newfound relationship go between the two, let find out~
  • Rotten to the Bone by racc00n_tm
    racc00n_tm
    • WpView
      Reads 276
    • WpPart
      Parts 3
    In which you are a kind SOUL trying to help an ex-friend's mishap with a world-defying machine that brought alternates of him and his brother to their world while also dealing with his girlfriend whose goal seems to be making your life a living hell by turning everyone against you. Luckily, you aren't a doormat, and you certainly won't let someone as rotten as her rule your life. [Trigger Warnings will be presented at the beginning of each chapter!]
  • monster(underswap papyrus x abused! depressed! reader) by LissettGonzalez3
    LissettGonzalez3
    • WpView
      Reads 38,043
    • WpPart
      Parts 31
    A girl who gets abused by her parents and the girl is you, your parents call you a monster and you don't really know why. Your parents have been treating you like this way. You never get to know what love and hate it.
  • Undertale Au's Imagines/Preferences  by Deathcomesfast
    Deathcomesfast
    • WpView
      Reads 144
    • WpPart
      Parts 4
    As read in the title I have loved Undertale for years and I just recently grew a desire to write for the lovable characters. I've had inspiration and I recommend you go look at my playlist for the game. Anyway, I appreciate your time, and remember you can always send a message to me, either to request or just to talk, I do fluff/smut. Have a great day/night my lovelies! -Skipper 🧡
  • Soulmates and Chaos by UbaLala9
    UbaLala9
    • WpView
      Reads 92
    • WpPart
      Parts 4
    Upon reaching a certain age, the age can differ between people, a soulmate bond will appear. The bonds are varied and the soulmates are varied as well. There are both platonic and romantic soulmates in this world. Several people were unable to find their soulmates, but when several AUs merge, they suddenly find their soulmate was from another AU.
  • Blueberry Sans X Reader by ghostlyEclipse
    ghostlyEclipse
    • WpView
      Reads 28,874
    • WpPart
      Parts 9
    The title says it all. Y/N and her sister grew up hearing the stories of the underground. One day, their imagination may have taken them too far... Note: Underswap does not belong to me credit goes to the creator.
  • Two Apple seeds by TragicM45k
    TragicM45k
    • WpView
      Reads 117
    • WpPart
      Parts 6
    Ink gives Swap an unsuspecting apple,and in return gave him something in return
  • Spicyhoney-kustard book by AndrewMandrew
    AndrewMandrew
    • WpView
      Reads 533
    • WpPart
      Parts 4
    This book mostly consists of oneshots and headcanons. Of course there might be longer takes on certain situations but it will all depend on my motivation and imagination :') Warning: Gay themes and non-monogamy. Also skeletons...at least 4 Cover done by my lovely friend: @tired_cringe on twitter
  • ✿ Pensamientos de una fangirl ✿ [CRINGE Y VIEJO] by _souhee_
    _souhee_
    • WpView
      Reads 16,067
    • WpPart
      Parts 16
    Bueno trata de pensamientos que tengo aveces con los shippings yaoi y eso:v no tengo mucho que decir sobre esto ya que esta es mi primera historia no soy muy buena en esto ; - ; pero intentare todo lo posible para hacerla bien TvT espero que le guste n.n PD: contiene yaoi si no te gusta no lo leas >:v
  • A Berry In A Bush by AlexBrant18
    AlexBrant18
    • WpView
      Reads 1,018
    • WpPart
      Parts 12
    Credit to Harrish6 and their permission to let me use inspiration from their book 'Until The Last Petal Falls'. It's an amazing book and you should really check it out. Summary: Underswap Sans awoke in a rather large patch of golden flowers, he was expectedly sore and his skull felt painfully numb. He looked up to see a hole, he must have fallen. He couldn't crawl out, looks like he's going to have to take the long route. Well, if there was one.
  • "Apologies" ~ An Underswap Frans Story by DiamondReadsFanfics
    DiamondReadsFanfics
    • WpView
      Reads 33,419
    • WpPart
      Parts 19
    Diamond makes an Underswap Frisk x Sans story due to a poll he made on his Undertale Amino account. The full story will be posted here, in a Google Document, and on his Undertale Amino page. This story will have a lot of parts, and already have about 10 planned, so stick around! Full story by ItsJustDiamond All thumbnail/background art goes to their respective owners Underswap by popcornpr1nce
  • My favorite Nightmares (Nightmare Sans x Reader) by Tsbowi
    Tsbowi
    • WpView
      Reads 3,274
    • WpPart
      Parts 5
    You are a girl who has lived alone most of your life, you always avoided falling in love with anyone so that you don't have to go threw the pain of breaking up. So you live alone in a storage space, and pay for it each month to keep it by working at McDonalds. One day you started having lots a terrible nightmares, but could the nightmares turn out to be something more? READ MORE TO FIND OUT! Welp here is a Nightmare x Reader story finally! I really hope everyone likes it! (⚠!!!Warning I will be using harsh language in this book along with some adult themes so you have been warned.!!!⚠) This is a shared account with my friend: @Azreal_Cursed This is my main account: @Rainbow1231
  • A Miscalculation In Space by Readern111
    Readern111
    • WpView
      Reads 17,302
    • WpPart
      Parts 17
    He knows he'll be dooming them if he falls, but he's tired, his body is breaking apart, held together on a higher being's whim only. He wonders if there'll be another to replace him. He wonders if there will be none. It's rather silly, really, since he won't even be around to witness that. The crowd, the rage and bloodthirst palpable in the air will ensure that. If he does not fall on his own, others will force him to. Or, in other words, the typical start of Error being forced to jump into the Void one way or another, in this case into the NaJ universe! The cover art belongs to irodimmatcha on deviantart(will take down if the artist asks me to)! Updates will be highly inconsistent.
  • incorrect Undertale quotes  by -Berri
    -Berri
    • WpView
      Reads 85,859
    • WpPart
      Parts 123
    Most of them are stolen from Tumblr Edit: How are people still finding this story I-
  • The Anomaly | sans aus x reader x papyrus aus by chocolateghxst
    chocolateghxst
    • WpView
      Reads 129
    • WpPart
      Parts 4
    In which, you meet a bunch of skeletons, and your whole life changes. ~ Y/N uses they/them pronouns. ~ No art shown here is mine, unless I say that it is. English isn't my first language so there might be grammar mistakes. I will try to update at least once a week. This might be hard to do since this is Wattpad. The reason I was able to write this is because my browser glitched and now it allows me to write stuff. So if I stop updating and haven't mentioned taking a break or something it's because my browser went back to normal.
  • Ask Or Dare Undertale!! by Sky-Blue-Neko
    Sky-Blue-Neko
    • WpView
      Reads 866
    • WpPart
      Parts 19
    The title says it all :3 (Ill add 5 pepole maybe more)
  • The Stars in our Eyes by LilTerrificTori
    LilTerrificTori
    • WpView
      Reads 5,451
    • WpPart
      Parts 5
    A lovely story of four monster that will meet for more adventure. Including Undertale, Underswap, Altertale and Alterswap
  • Fighting for One Useless Life by LynxTheShifter
    LynxTheShifter
    • WpView
      Reads 186
    • WpPart
      Parts 24
    This is based off Fighting For The Lives That Matter by @UndertaleSinner11 Cover not by me! So this story isn't centered around Red or his relationships and adventures, but Edge's. Edge ended up broken because he needed a constant. He needed Sans. Everything he was doing he wasn't sure at all. Sure he abused his own brother because of selfish reasons... But... He wasn't scared. He was beyond frightened. Why? Lynx is a strange Sans who's Judgement is docile. She decided to fight for this useless life.