Gasterxreader Stories

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...

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...

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)

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...

OLD AND BADLY WRITTEN THE REWRITE IS POSTED ALREADY DISCLAIMER: The god figure created in this fanfic is purely fictional. He is purposefully made to be prideful and cru...

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...

Sequel to the book Subject 108. Six years after leaving the underground,the dreams of your once beloved return as well as the calling of the mountain. But, the return o...

You'll get it as you read I'm shit at describing what the heck books are about

woooaaaahhh

The True Gaster x Female Fanfiction

(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...

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...

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 gue...

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...

I lost everything in that fire, my neighbors, my memories-my bed... In a way, it was a not-so-controlled swailing, gifting me a fresh start in Ebott. So when I finally g...

Watching your determination being extracted from your soul. Fills you with fear.

(Cover art by Tumblr user rorischach) Tw for mentions of medical settings and tools, as well as possible death and light gore. Nonbinary Gaster (he/they), I will die on...

Hope You Guys Like It! its my first book I will update as soon as I can

Reader meets WD Gaster. Takes place before the monsters are freed from Underground. Enjoy.

Gaster x reader Reader named Sage bc Y/N is cringe /j I have writers block don't bully me