
#1
Fallen Angel(Gaster x Reader) REWR...by Big Simp
(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 su...

#2
We Speak In Hands (Gaster x Female...by ~Oreo~
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 ta...
Completed
![Love's Flames [Gaster x Reader] by deadlyyaalive](https://img.wattpad.com/cover/271891694-512-k491856.jpg)
#3
Love's Flames [Gaster x Reader]by deadlyyaalive
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 @gastermybel...

#4
Darkness' Eternal Bride (Gaster x...by everail
WARNING: THIS CONTAINS HIGHLY MATURE CONTENT (BLOOD, VIOLENCE) READ AT YOUR OWN RISK
Money can change a lot of things.
It can even change your destiny.
Plunge yourself i...
Completed

#5
The Ghost Above Me (Gaster x Reade...by everail
Even though the Underground is now empty, except for some people, you still stupidly managed to fall in the once prison for monsters.
Who knew you would get away from th...
Completed

#6
- My Angel from the Sky - Gaster x...by Flame96
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...

#7
Scientist - GASTER X READERby jamdews
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 missin...
Completed

#8
FRUIT OF THE VOID (Gaster X Reader)by rechtbrecher75
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 ever...

#9
Falling For a Monster (Glitchtale...by ❁💮ғʟᴜғғʏ ᴀɴɪᴍᴇ🏵️✫
Y/N or (Sky) Grey was Jessica's younger sister who works as a supervisee, where her older sister was the head of the Anti-Monsters Department, the District Leader of Det...

#10
Doctor Darkness {Gaster x Kind!Rea...by tyjo.
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...

#11
Glowing Souls (Gaster x Reader)by Rose
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 be...

#12
Part of You (Gaster X Reader)by KowloonFox11
You'll get it as you read I'm shit at describing what the heck books are about
![Living With Gasters (One-shots) [Gaster Gang x AU!Readers] by rubybadappledream](https://img.wattpad.com/cover/93251804-512-k213b9a.jpg)
#13
Living With Gasters (One-shots) [G...by RubyBadAppleDream
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 bl...

#14
_~^ May This Be? ^~_ {Gaster x Nek...by S·c·a·r·e·d
Your a neko: (deal with it) your 'Master' has thrown you into a pond that had a waterfall going to the underground. After falling 1000ft down, you landed on a soft yello...

#15
Some Random Shitby 𝓓𝓪𝓷𝓲
⚠️ Trigger Warning ⚠️
The content in this may be disturbing for some readers so veiwers discretion is advised.
Here are some of the following fandoms that might be in th...

#16
CREEPY SMILES |Gaster x Readerby >♠️<~|Krou|~>♠️<
You've always have had a creepy smile, and it doesn't help that you have these scars on your face now.... It doesn't matter though, you're fine with it, and he's happy t...

#17
~If Only~by Mörderin + Gaster
Just a regular girl... until that one day...
Xalva just wanted to go to school... finish college... and maybe become a... rocket engineer. Her whole life she had looked...

#18
Meeting WD Gasterby writing noodles
Reader meets WD Gaster. Takes place before the monsters are freed from Underground. Enjoy.
Completed

#20
The Life Of The Former Royal Scien...by SteampunkSilver
(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 h...