Gaster Stories

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...

UNDERTALE None of these pictures are mine. All credit goes to the owner(s). This is just for fun

NOTE: I'm rewriting this book to incorporate more details and a better plot line amongst other things. I'm keeping this up for anyone who wants to read it, but it isn't...

DISCLAIMER: The god figure created in this fanfic is purely fictional. He is purposefully made to be prideful and cruel and is not supposed to represent any god. I am re...

A long time ago, a human, Chara, fell down into the Underground and was adopted by the monsters. Nevertheless, in this AU, Chara never died. Grown-up and married to Asri...

"How rude, not even gonna ask for a name??" He teased. "Why are you here?" You glowered, raising the whisk. The skeleton scoffed: "Well, glad yo...

Is it still considered a backstory if the protagonist doesn't exist? Companion story to "Reset".

A week after the death of Asriel and Chara, you fell. You become the new hope of the Underground, but problems complicate things. You have to leave the Underground. When...

Maybe a truly happy ending is possible after all. Not all humans are horrible creatures. Chara learned it when the Underground Kingdom accepted humans other than her, wh...

(cover draw by me. It's just a version from an inspiration I saw from another artist that I forgot their name by the way-) read this story if you like a Canon character...

Sans is brought to the world of BNHA. He wakes on the roof of UA.He'll meet new friends and enemies, old and new. But will he ever get over the jar, filled with his bro...

Gaster was born and raised in a world torn apart by human greed, then... it ended. The great barrier seal, trapping them underground. Gaster's True story, to the Core an...

The queen has left King Asgore after both of their children have died and the king has killed one human already. His majesty appears to be in a stage of long-term grief...

You are the elder brother of Frisk. I'll explain later. This book will not be updated for a while, sorry. Completed: December 2nd, 2020 SC Book# 12

Error didn't know what to expect after being pushed into the Void. He didn't expect to be transformed into a teenager. He didn't expect to fall into a world full of drag...

"This is how it came to be. And now I can finally show you." I say to...myself? "Error, there is no time for this!" Ink screams at me. It's weird bei...

There was one's a high school girl 16 year's old a big fan of Undertale. She decided to make here own Oc of Sans of her self and make a story... While the girl was waiti...

I was bored oh well but this is a scenario book so be warned this is my first and probably not my last so let us start and by the way your gonna start out as a baby to m...

Gaster was working, as always. He had created his two subjects and was supposed to research on them, but when the time came to choose.. He chose mercy. Now, the real que...

[Warning: Characters in the story are human!] Snowdin High School was ranked the most boring schools in Snowdin Village itself. You, a normal student attending the schoo...