Gasterxreader Stories

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42 Stories

  • Living With Gasters (One-shots) [Gaster Gang x AU!Readers] by rubybadappledream
    rubybadappledream
    • WpView
      Reads 394
    • WpPart
      Parts 1
    One day a young adult human female was coming out work, and had a strange feeling that something wasn't right until she pass one certain building then everything went black as the female felt herself falling into an endless hole until what seem like hours she finally fell through and fell flat on the floor without dying. She ended up meeting four other versions of herself and meeting up five other monsters. Later on she started living with them, that female was you (Full Name).
  • Fallen Angel(Gaster x Reader) REWRITE by Feniksiara
    Feniksiara
    • WpView
      Reads 1,881
    • WpPart
      Parts 9
    (Cover drawn by me) The angels weren't supposed to pick sides. They were created for one reason and one reason alone. Protect the humans from any threat. There was no such thing as a grey area when your entire worldview was supposed to be black and white. And yet yours ended up shifting. The things that once felt right now didn't and you did the one thing no angel ever dared before. Went against God themselves. Your punishment however, ended up changing your life in a way you could have never expected. And it was all thanks to a family of three skeletons and a fateful meeting that couldn't have gone worse. Started:29.04.2023 Finished:??? DISCLAIMER! THE GOD IN THIS FIC IS NOT BASED UPON ANY RELIGION. NOR ARE THE ANGELS. IT IS PURELY FICTIONAL AND NOT MEANT TO FOLLOW ANY OF THE RELIGIONS EXISTING IN THE REAL WORLD. PLEASE DO NOT MAKE COMMENTS ABOUT THIS BEING INNACURATE TO SOME RELIGION OR ACCUSE ME OF ATTACKING YOUR RELIGION. I ASSURE YOU IT IS NOT MY INTENTION.
  • Scientist - GASTER X READER by NapstabIooker
    NapstabIooker
    • WpView
      Reads 149,663
    • WpPart
      Parts 19
    Hi guys! So this is actually my first time writing a adventure story (and xReader), so I am kind of sorry if it looks crappy!! ****** A long time ago, people were missing when they climb up Mount Ebott. They say there was magic, got lost, or even died. But when you discover the secrets of the mountain, you will get attached to it, and even maybe meet a new 'friend'... ||an W.D. Gaster x Reader fanfic|| •I do NOT own any type of artwork that is included here in the fanfic, all art goes to thier respective owners.•
  • between two souls | gaster x reader by meekicat
    meekicat
    • WpView
      Reads 487
    • WpPart
      Parts 7
    still need a proper thumbnail "do you think this will work?" he questioned, concern coating his face as he stared into your eyes. "I don't think, I know." you replied, confidence weeping from your soul.
  • (CANCELED) All of my pain(Gaster!SansXHybrid!Reader) by stressed_petals
    stressed_petals
    • WpView
      Reads 453
    • WpPart
      Parts 3
    you lived a bad life,to say the least,bullied,abused. Then,monsters came to the surface,you learned of your real parents, then met Him. (APOCALYPTIC SETTING) (SLOW BURN)
  • (Requests Open!) Undertale AU Oneshots by LGTheWriter
    LGTheWriter
    • WpView
      Reads 200
    • WpPart
      Parts 4
    AU X Reader AU x AU Normal stories. Youknow, stuff.
  • The Faults in Our Souls ~ Gaster x Reader (Under editing) by _T3chn0_
    _T3chn0_
    • WpView
      Reads 48,890
    • WpPart
      Parts 28
    "Do you not want to go back home? To the surface?" °°°°°°°°°°°°°°°° "No." °°°°°°°°°°°°°°°° "Why?" °°°°°°°°°°°°°°°° "Because my home is right here, sitting next to me." _______________________ You were used to the unfortunates of life. Everyone had them, it was normal, but life decided to take a lemon, freeze it, then throw it at your face. But, it wasn't like it was THAT bad... Until you fell into the Underground that'd been sealed for over a hundred years, of course. Friends along the way help you through the sudden changes in your life, and a bone-ified family as well. (82,110 words) (Undertale does not belong to me, only the characters I added for plot reasonings. You belong to yourself, of course.)
  • FRUIT OF THE VOID (Gaster X Reader) by rechtbrecher75
    rechtbrecher75
    • WpView
      Reads 17,459
    • WpPart
      Parts 12
    Dark, darker, yet darker. The darkness keeps growing in your life. You don't know why, but there's someone relentlessly haunting you. He won't leave you alone, and every dream you have is a nightmare. It seems peace is currently impossible for you. What great evil could possibly want to harm you? You never felt that you had done any evil unto anyone else...if anything, you felt like your life was just a long list of things you'd never done. Was your insecurity in itself a sin? Don't jump to conclusions so fast, you poor, tortured soul. Harm may not be what this force wants to inflict after all. It may just be a distorted cry for help. In this post-pacifist route story, get support from well beloved characters as well as new ones, and delve deep into your curiosities and sympathies for one of Undertale's most mysterious characters. Dive in an reap the fruit of the void! Also on my Deviantart! http://rechtbrecher75.deviantart.com/gallery/60771559/Fruit-of-the-Void-Gaster-x-Reader
  • Sneaking Suspicion || Gasterxreader by yourfriendmars_404
    yourfriendmars_404
    • WpView
      Reads 126
    • WpPart
      Parts 4
    Gaster x reader Reader named Sage bc Y/N is cringe /j I have writers block don't bully me
  • 《Gasters X reader》 by KarmaAnimatesYT
    KarmaAnimatesYT
    • WpView
      Reads 113
    • WpPart
      Parts 1
    your name is Y/N and you got transferred into a void filled with tall skeletons and you are very confused...but...not afraid
  • Kairos by Radio_Cherry
    Radio_Cherry
    • WpView
      Reads 1,083
    • WpPart
      Parts 6
    'Filled with power the Queen will rise but loving monsters led to her demise. (Y/n), Queen of Darkness' Frisk stared at the plaque and took a look at the tapestry. A girl with spade cheek marks, around her 20s held a parasol surronded by roses. She was accompanied by a monster who Frisk couldn't recognize but seemed oddly familiar. The two bore matching outfits, the girl a short sleeved purple dress with a white undershirt, a cresent moon decorating it. She wore long purple gloves as well. It seemed edwardian. The other wore a dark purple coat and pants. A white sweater underneath. Maybe they were a couple or something. Frisk shrugged at the thought and motioned for everyone to follow them further into the castle, missing Asgore's, Toriel's and Sans' long stares at the tapestry. "Is that....really them?"
  • Part of You (Gaster X Reader) by Understandable56
    Understandable56
    • WpView
      Reads 517
    • WpPart
      Parts 6
    You'll get it as you read I'm shit at describing what the heck books are about
  • We Speak In Hands (Gaster x Female!Reader) by OreoDaSkeleton
    OreoDaSkeleton
    • WpView
      Reads 49,244
    • WpPart
      Parts 33
    Gaster is the current royal scientist, set with a mission to break the barrier and free monster-kind from their underground prison. His loyalty and persistence to the task is clear, since he'll make whatever sacrifice necessary to complete it. However, even a perfectionist can be blind to some of their own flaws. Gaster has a habit of pushing things or himself too far. An accident occurs in the lab. Whilst trying to save him; one of his lab assistants, Y/N, gets injured. Burdening himself with even more pressure and guilt to fix it, Gaster thinks that doing all of her work for her will cover up the incident. Still, the sad reality is that the damage can't be undone. Well, Gaster ends up spending more and more time with her. As a result, both of them gain an entirely new perspective of the other, they aren't just another monster in a lab coat anymore. Hey! It's Oreo aka Writer~San! Undertale, it's characters, and it's fanart do not belong to me. However, the story does!!! I hope you enjoy it! (^w^)~
  • Doctor Darkness {Gaster x Kind!Reader} by tyjowrites
    tyjowrites
    • WpView
      Reads 331
    • WpPart
      Parts 1
    It's been a few years since monsters had poured out from Mount Ebott unexpectedly. You were always a kind soul, so you had very little problem adapting to the newcomers. Even if some monsters were bitter toward humanity, you always tried your best to befriend them and show them the kindness that your ancestors had not. Through that, you made many monster friends, none of them you would trade the world for. But perhaps you could not change everyone's mind. You always thought that with the right amount of patience and persistence, you'd eventually break through to the other side. However, this didn't seem to be the case for the mysterious man you encounter one night. His anger and hatred frightened you, yet you couldn't bring yourself to ignore him. There was just something about him the drew you in closer, even if you knew it could be dangerous. Image used for the cover can by found on http://atomicshitpost.tumblr.com/post/135177890511/is-there-anything-i-can-do-for-you
  • Dark, Darker Yet Darker AU (W.D Gaster Romance) by s1mplyp0tat0
    s1mplyp0tat0
    • WpView
      Reads 1,671
    • WpPart
      Parts 3
    Watching your determination being extracted from your soul. Fills you with fear.
  • Love's Flames [Gaster x Reader] by deadlyyaalive
    deadlyyaalive
    • WpView
      Reads 526
    • WpPart
      Parts 6
    I'm writing this for me as well for you Uhm I have no idea what I'm doing so yeah- I'm trying to make it inclusive and crud so PLEASE be patient!! TikTok is @gastermybeloved lol- Cover is by someone, idk, but google didn't say so.. If they're on this app and want me to take it down, I will. Onto the actual book description: ~~ After the incident, you lie in a limbo. No idea what happened or where you are but you're there and confused. And then your here. In your favorite game's reality. And there he is.
  • The Life Of The Former Royal Scientist  by SteampunkSilver
    SteampunkSilver
    • WpView
      Reads 177
    • WpPart
      Parts 4
    (Cover art by Zarla on Deviantart) I'm annoyed that people keep mischaracterizing my interpretation of Gaster so I'm making short stories as an attempt to characterize him 😁 I'm Gaster's wife and partner irl On that note, some of these will be x readers cuz I'm a filthy, filthy simp <3
  • Dadster (Gasterxreader) by Kittypudding
    Kittypudding
    • WpView
      Reads 777
    • WpPart
      Parts 4
    you know where this is going, you clicked on this so don't shame me! also fuck the time line dadster is alive, well and sexy "Monsters have come back and you've never seen one in real life. Sure you heard the stories and read some books, but now they're moving into your neighborhood! what's going to happen now?" WARNING: SMUT AND AGE GAP (just a little, to make it spicy ꈍ⁠ᴗ⁠ꈍ)
  • Gaster x Female Reader by FloweyTheGrouch
    FloweyTheGrouch
    • WpView
      Reads 836
    • WpPart
      Parts 8
    This story is about a girl named Y/n L/n. She barely managed to graduate highschool because she was one point away from failing. One day she decides to be a test subject to earn a little money on the side. She winds up in the company of monsters. She happens to meet a certain skeleton and her story goes from there. Disclaimer: I do not own Undertale. Undertale belongs to Toby Fox.
  • Not Alone (Gaster X Skeleton!reader fanfic) by KawaiMoonShine
    KawaiMoonShine
    • WpView
      Reads 324
    • WpPart
      Parts 3
    Author's note: Brrrr this is my first ever fanfic I've ever made sksksk and for the first time, the reason for this is bc I got an idea for Gaster X reader fanfic! I guess I got inspired by other Gaster X reader fanfics or then it's (was) just an alternative version of my OC Thiara (whose a skeleton) "arrive" to the underground rather than canonically/officially being already in there, don't know! it can be both^^ But my god- I'm a bit scared tho lol since I've never done this before, I don't really want to make the characters wrong or something (might be off-character idk),,, But uh- yea, read below for the story description now,, -- (Y/N) is a skeleton who weren't trapped underground like the rest of the monsters when barrier was casted, but instead hid with her/his/their mother and her/his/their twin, but were one day found and captured.. or at least (Y/N) was. Their family wanted to rescue them, they all managed to run to the mountain where the barrier was casted, but the humans had catched up, only (Y/N) was able to get through the barrier to safety.. or rather pushed in as their rest of the family was killed. From there (Y/N) was found by queen Toriel and were taken for better healing to a certain royal scientist; W.D.Gaster! The story continues on..... -- All the Undertale characters belongs to Toby Fox!!! Reader belongs to you^^ I might give out some additional OCs or not, depends! Now babai~ Edit: I'll be using they/them pronounces for the reader-- might've forgotten to mention it before publishing anything,,,