Gaster Gang x Reader OneShots - Mason - Wattpad

Gaster Gang x Reader OneShots

Reads 80,007
Votes 1,785
Parts 44
Time 4h 16m

Reads 80,007
Votes 1,785
Parts 44
Time 4h 16m

gastergang moreaus newtale outertale pg requests-open swapfell underfell underswap undertale

(Edit September 4 2023: requests closed as of like six years ago sorry guys)

 Read to discover which events take place in the Void as (Y/n) journeys throughout life with the five main Gasters! (And possibly more!) 

Keep in mind I am only a short kid...thanks

Enjoy!!! ;DAll Rights Reserved

gastergang moreaus newtale outertale pg requests-open swapfell underfell underswap undertale

Table of contents

44 parts

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Content Guidelines

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Darkness' Eternal Bride (Gaster x Reader) by xsfolia

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 into a life of romance, science, disappearance and misunderstanding. ________________ "When you get better, I'd like to kiss you" ... Gaster only wanted to conduct an experiment. He surely didn't want his life to be taken over by weird feelings. He also wanted the only thing he couldn't really have. He wanted you. What will he obtain? Will his research finally be completed? Or will he have to start another one? As for you, will you be able to move on from the past? Words count: 81.390 Also contains mentions of nsfw [Rankings: #1 in #gaster (08/21/2022), #5 in #xreader (08/21/2022)]

From Kind to Cold by JimmySMASH4daWIN

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.

When Worlds come together by Honey_Bee669

I've seen some Undertale fanfictions where readers and original characters are sucked from our reality and transported in to the reality of Undertale and it's several aus. I got inspiration from some of the stories, I don't exactly remember the name of the stories I apologize but I give credit of the original idea to who ever came up with it first. any how, instead of the character staying human, once they are transported they're turned to skeleton, so the magic in their body can get use to not only the transfer through the void, but so their body can be use to the magic drifting around in the monster world. cover art is made from a picrew dress up/make a character site. all credit to the creator of the picrew! slight trigger warnings for those in need racism towards monsters harassment transphobia homophobia slight panic attacks here and there onwards to the story!

An Underswap AU: A Tale of Seven Book 1 by sabermoonlight1616

The Multiverse is vast, expanding continuously as more alternate dimensions are being created. Each world possesses it's own unique laws, stories and inhabitants. This world in particular, based on the well known Underswap Canon Universe, happens to revolve around three important questions. What if the first six humans who fell after Frisk never left the Ruins? What if the world is slowly succumbing to the corruption caused by the RESETs? And. . . What if Sans' cooking improved? A/N This is my own interpretation of Grouptale, in the Underswap Universe. Please read the Disclaimer and Warnings.

UnderVanquish (True Pacifist - Book 1.) by SoulerFlare

The story officially begins when Toriel dies in her universe mysteriously. Gaster with his allies show up and take her soul remains back to his lab to save her life. Toriel then had DETERMINATION injected into her. Most of the DETERMINATION was collected from humans in multiple different universes. Gaster created the perfect solution to end RESETs and genocide routes that plague The Multiverse. A new kind of boss monster with the ability to utilize the power of the savestar. With Toriel at his side as his new daughter, he embarks on his quest to bring peace and balance to The Multiverse. However the savestar becomes corrupt, doing more than its intended function. If the RESET function is over-worked, it will erase a universe. The more universes that are gone, the more The Multiverse dies. They explore every universe they're able to, attempting to fix the savestar and rid the ability to RESET, helping others and themselves. ----- Note: This AU has themes such as Suicide, frequent swearing, mentions of needles and more medical equipment. Be careful upon reading incase you are sensitive to these topics! Also moments in the story of characters smoking and mentions of Alcohol. Note: All 6 of the finished Chapters are published. Chapter 7 is a Work-In-Progress! The AU is still in progress. Enjoy. UnderVanquish has two creators: SoulerClash and C!rquette. Co-Writers: Capt.Gunscar, Eversius, JK, Darkswaver, Hollow and Thegreatjade_yeet. UnderVanquish-Comic Creators: SoulerClash and Hollow. There is a Comic in Progress.

Don't Forget [Sans x Female Reader] by GabrielXander

You would think that with how shit your luck is, you would've been dead day one since falling into the Underground filled with scary monsters and a few spooky skeletons. However, much to your surprise, that did not happen (yet). You know how you ended up here, but you don't know... HOW. You're actually in the GAME Undertale now. And to make matters worse, there are some people who KNOW. You're surviving the best you can, but things are only going to get weirder from here on out. Gaster apparently needs your help? You're using the DJ to go to different AU's? You are gay now?- Okay, maybe that last one is just a joke, but still! You can only hope that your instincts are enough to keep you alive in these trenches. On God, they tryin' to drown you in this hoe! {Available on Patreon, Quotev, and Ao3 under GabrielXander}

€Top Star Sanses, Bottom Bad Sanses€ by HighCherryloljune

Welcome to this story! ⚠️NO REQUESTS⚠️ But otherwise enjoy:)

Undertale Au's x reader 5 by Broken-fnaf-fan

Yes, here it is the fifth book! I went ahead and decided to make the fifth one now, new book, new ideas! Anyway, request are open, but give me some time to catch up with all of the other ones I have at the moment. Thanks! I don't own any of the AU's or art unless I say so, However the outcasts do belong to me! If this is your first one shot book from me, Welcome! Now if you've read all of the others then, Welcome back! (updates are random)

Undertale: giving soul by Author-Dayo

This is a story before the last human fell around the time Chara was still alive and well. Humans were not being hunted till the adopted prince's passing, however with a new time line comes a new story and this one is not like the others. W.D gaster a father of two children is called on an unusual discovery, the product of something unknown by monsters or man. The smallest addition to his new life and others around them. With no one but the Gaster family and the protection of the Royal Family, She will learn much about herself and the people around her.

Reincarnated as Sans twin brother by Sansdoll123

The reader wakes up to a new life as a monster skeleton. In a new world, that's filled with monsters, humans, and magic. But instead of living their new life to the fullest, they will have to survive Gaster's experiments and war with humans. Just because Asgore became mad for absolute control over his citizens and the humans. Will the reader and his brothers find their freedom and a place to call home or die trying?

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Slide 1 of 10

Darkness' Eternal Bride (Gaster x Reader) cover

From Kind to Cold cover

When Worlds come together cover

An Underswap AU: A Tale of Seven Book 1 cover

UnderVanquish (True Pacifist - Book 1.) cover

Don't Forget [Sans x Female Reader] cover

€Top Star Sanses, Bottom Bad Sanses€ cover

Undertale Au's x reader 5 cover

Undertale: giving soul cover

Reincarnated as Sans twin brother cover

Darkness' Eternal Bride (Gaster x Reader)

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 into a life of romance, science, disappearance and misunderstanding. ________________ "When you get better, I'd like to kiss you" ... Gaster only wanted to conduct an experiment. He surely didn't want his life to be taken over by weird feelings. He also wanted the only thing he couldn't really have. He wanted you. What will he obtain? Will his research finally be completed? Or will he have to start another one? As for you, will you be able to move on from the past? Words count: 81.390 Also contains mentions of nsfw [Rankings: #1 in #gaster (08/21/2022), #5 in #xreader (08/21/2022)]