•×UNDERTALEו
17 stories
Gaster X Reader by Emilyiskawaii201
Emilyiskawaii201
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    Parts 12
I have nothing better to do so what the hell gotta take a risk now and again, eh? Hope you enjoy!❤
FRUIT OF THE VOID (Gaster X Reader) by rechtbrecher75
rechtbrecher75
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    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
Grillby x Reader: Burn the Witch by KyraP_
KyraP_
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    Parts 5
Decades after the monsters were imprisoned underground, the humans have found a new prey to hunt. Despite hiding from the humans for centuries, witch trials swept through the world killing almost all surviving mages. Almost all. The reader is one of the few mages still alive through the horror of the witch trials. Fleeing from humans, she falls into the underground. But is it truly safer than the world above? A reimagining of War Zone, where the reader never met Grillby or any of the other monsters and must navigate the surface and the Underground after the war. Cover photo belongs to: http://zoruui.tumblr.com/
Human (Gaster X reader) by ghostlycupcake
ghostlycupcake
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    Parts 3
COMPLETE!!! This story is in the past! It plays off the idea that sans and papyrus are Gaster's kids. Being the past it means that his kids aren't born/created yet. Also monster kid, Frisk, Chara, and Asriel aren't born/created
Glowing Souls (Gaster x Reader) by WolfSans88
WolfSans88
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    Parts 8
You are about 15, Gaster is 17. In this Gaster is an older brother to Sans and Paps. Asriel is about 6 along with Frisk and Chara, who show up later. You and Sans are best friends, but Gaster is amazing! At age 17 he is the royal scientist and you hope you can help him out.
- My Angel from the Sky - Gaster x Reader by MonicaGiudice
MonicaGiudice
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    Parts 30
Suddenly you find yourself in the Underground, with no memories and an unknown and painful past. Your first encounter is Flowey and he tells you how weird and different your soul is. What does it mean ? What happened to you ? A fated meeting awaits you. The beginning of everything. THE UNDERTALE P.S (GasterxReader) The beginning of the story is set some years after the war between humans and monsters. #9theories 9/05/2018 <3 Thank you guys :D #8theories 10/05/2018 <3 #1 gasterxreader 16/08/2018 <3
Dr. W.D. Gaster by ThatSideOTheInternet
ThatSideOTheInternet
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    Parts 6
Beware of the man who speaks in hands. Even though I love the headcanon that Gaster is Sans and Papyrus' father, I still can't stop wondering what the ACTUAL CANON is. Soooo I decided to compile everything that possibly has something to do with Dr. W.D. Gaster.
Gaster x reader by LillyRaven13
LillyRaven13
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    Parts 30
In this book I plan to do one shots for Gaster the royal scientist, for the underground. Requests are accepted and would really help in the making of this oneshot book. I will not do lemons due to the fact that...... (Throws hands in air and falls to knees) I do not know how to!! anyways hope you like the book. Sincerely, Lilly-pad
Gaster x Reader by EmilySkelewolf
EmilySkelewolf
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    Parts 5
You had been getting these weird warning, mainly from Sans. You packed plenty of healing items and your heart locket to see what everybody is so scared of. You soon meet not only your friend, but a fun skeleton who stole your heart (not literally!!!)
The beauty and the beast. [Gaster X Reader]  by Creepy_Madi
Creepy_Madi
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    Parts 10
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