Gaster Stories

Your favorite skeleton is back at it again... and again... agagaagaag Sans has had enough. Everyone is at the surface, holding their own jobs and lives. But... Sans can't ever let it fade from his mind. The dust. The cries. Watching the screen with Alphys as a child just rampaged in the underground. He is going to snap. He is mad. He is sad. He can never forget. Cover is NOT mine, find it online if you want ::Rights for the original concept and media 'Undertale' are all under the jurisdiction of Toby Fox. All other workings are done by me.::

A/n: I got some inspiration from another story, I'll try not to make it a carbon copy. Gremory Rose, to be exact. The forgotten child. The Cursed One. Such cruel names to give a child. Alas, that's what Y/n Gremory had to endure for so long... Until he found an escape, to somewhere THEY'D never find him... The Void...

Abandoned on Mt. Ebott at the tender age of five, young Harry's unsurprisingly died, but Death's always had a weird relationship with his variant... Meanwhile, before Flowey's revival as souless talking flower, Sans makes a discovery under the mound of snow, Papyrus has always wanted to be a big brother anyways. *Edited Summary (29/09/2025)

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

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 the prison with someone following you behind your back? Who would have known an echo flower would have revealed too many things? Who would have known you'd fall in love again? Words count: 55.608

What happens when the Gaster Gang handle a human child situation? Read and find out! Based from Bun-bunmuse art story. ps. the reader is 5 year old girl ?

It is what it says on the tin. So, have those questions-a-ready! 'Cause it's about to get fun!

nothing here

Sans is a comedian, telling puns and playing pranks is part of who he is. Or is it? Resets, his parents deaths, and bringing up his brother alone has all taken its toll on the pun loving skeleton sending him into a spiralling depression. His comic front is becoming harder to uphold against the wear of time, only to be worsened by a total lack of sleep and a new threat in the underground , but will his brother ever discover ... The truth behind his mask? First ever fanfic, constructive criticism is encouraged. I don't own the characters or the art included in or on the book. Undertale and all characters belongs to Toby Fox.

He killed them all. Dust, down the waters of the the forest it runs, through the veins of the skeletons and the demons that prowl the night. It's the silent enemy, the adversary that slowly chokes and brings down entire armies to their knees. None can oppose it for none have the will or the strength. And it is the dust that emerges from the mouth of a mountain that overlooks a city, the dust that creeps and crawls through the forest and down the alleyways. It is the dust that wraps its bony hands around the throats of the damned ignorant enough to walk the streets, squeezing until the last heartbeat thrums. You are a detective in this city, a quaint area with little crime and a police force hopped up on Dunkin Donuts. But when a string of murders plagues the town, you are thrown on the case following cold leads and an ominous trail of dust. But one night, when you catch wind of a scream and follow it through the dark, you find a skeleton and the rest is history.

What if the Vessel that we made was saved? What if we were able to forge our own fate? How will this change what will happen? Only time shall tell...

I walked along the street. Everything was perfectly normal. The sun was warm, a soft breeze swept through my short (h/c) hair. Then the sound of glass shattering reached my ears making me jump. A bit frightened I backed away from the sound when something wrapped around my waist and I suddenly felt like someone was spinning me through the air. My feet hit carpet before I was tossed on a couch. "Move and you'll get your little neck snapped."

💀I did not originally write this, it's just a story I found that I rlly liked, 💀 it's a lemon fic of reader x goopy gaster, this contains adult themes such as breeding, so minors beware! I might make more than 1 chapter, so eh ( made in 2022)

read to find out

If you only care about one person, How broken will you be when they leave? How lost would you be without your light in the darkness? How far would you go to see them again; To chase the only light in your dark life?

Underfell Skelebros backstory! Technically a prequel to my story, "A Three Way SWAP," but you don't need to read that to understand what's going on. Takes place in the world of Underfell. We learn what happened to Papyrus to make him so cold and distant in Underfell. WARNING: MILDLY VIOLENT AND MENTIONS SUICIDE. GETS A LITTLE DARK. YOU'VE BEEN WARNED.

With the resets jumping back and forth, it seems to simply set the same path once more. However, this pattern breaks when the code seems to restart - and this time, there are a few more unfamiliar changes. How will Red react to the new MERCY filled Papyrus? And how will Honey adapt to the brother he loved continuously flinching away? Updates every Sunday!

forgive and regret. The Mountain East follows the journey of Chara, the first fallen, and Asriel, the first prince. Though this time, something... strange occurs, and causes the timeline to alter. Some warnings: Does contain swearing. Contains shipping, though later in the story. Implies suicide. Includes violence.

(THIS IS VERY AU BASED. ASGORE / TORIEL ARE TOGETHER AND ASRIEL IS ALIVE. CW OF ABUSE / CHILD ABUSE, TRAUMA, AND DARK THEMES ARE PRESENT) It's almost been a decade since the war of the humans and the monsters had ended and five years after Chara's death. Centuries of conflict have left the Underground in a state of repair and despair. But, only hope remains for the Dreemurrs to fix the problem with the barrier without killing humans, as Asgore has promised to find a way to fix this with the help of his scientists. But, how can Asgore juggle both his duties as a king and to his family? Another problem arises when a human child mysteriously falls out of nowhere with strange abilities attached to him that make him very unpredictable. However, on the month that arrives, could it be coincidence that a human falls? Stay tuned for the Cry of Bravery!

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 and beyond. In the 'We All have Stories' universe and linked to This spider did not eat 'Curds and Whey' and 'Ashes and Embers'