Undertale
25 stories
Black Roses (Overprotective!Bad Guy Sans' x Child!Reader) by JulesRedenger
JulesRedenger
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Nightmare found a young child a long time ago. When they fell into a coma it sent him over the edge. several hundred years later the child wakes up in a castle of darkness, surrounded by people, er... skeletons, that they don't know. Now they are being raised by murderers, cannibals, and world destroyers. Oh yeah! And their Uncle is the god of Death. Fun. WARNING (but not really): This story has been known to give people heart attacks and possible death from wholesome cuteness. I am not responsible for said medical emergencies or deaths. Read at your own risk. ~~~~~~ || Few things. 1) The first couple of chapters are going to basically just be Nightmare, but it's for plot reasons. 2) Dream is definitely going to be a little ooc. Don't like it, don't read. This is just for fun. 3) Like I said, this is just for fun. So, updates are when I feel like it. 4) I'mma try to keep the pronouns for (Y/N) gender neutral, but I may just drop that at some point. Depends mostly on what you guys prefer. 5) any art or videos added are not my own unless explicitly stated. Cool? Great. Let's get started.
We Speak In Hands (Gaster x Female!Reader) by OreoDaSkeleton
OreoDaSkeleton
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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 task is clear, since he'll make whatever sacrifice necessary to complete it. However, even a perfectionist can be blind to some of their own flaws. Gaster has a habit of pushing things or himself too far. An accident occurs in the lab. Whilst trying to save him; one of his lab assistants, Y/N, gets injured. Burdening himself with even more pressure and guilt to fix it, Gaster thinks that doing all of her work for her will cover up the incident. Still, the sad reality is that the damage can't be undone. Well, Gaster ends up spending more and more time with her. As a result, both of them gain an entirely new perspective of the other, they aren't just another monster in a lab coat anymore. Hey! It's Oreo aka Writer~San! Undertale, it's characters, and it's fanart do not belong to me. However, the story does!!! I hope you enjoy it! (^w^)~
PROTECTIVE [Dreamtale Nightmare x reader] by WindyArtist
WindyArtist
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[Y/N] a human who never truly understood why people hated negativity, and enjoyed any form of positivity. Even if it harmed them. They believed negativity was positivity in disguise. Everything good comes from something bad, so why hate negativity? DISCONTINUED πŸŽπŸ–€ Swear warning for those who dont like it. And sensitive topics later on, nothing too bad but some people may get triggered and I know some people are VERY sensitive to things that the reader will have had problems with! Just a good warning :) This will not have any form of smut or lemon, I get very uncomfortable writing those kinds of things. Thank you This is gender-neutral! For those who don't know what Gender neutral is, it basically means for any gender, this story is nonspecific. If I mess up with pronouns sorry about that! For fillers, I can do imagines.
Undertale AU Sibling Oneshots by CrowBorn666
CrowBorn666
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Yup! They're back! A thing I started back in my older account UndertaleKyannaKitty. They're your siblings now! Cute, edgy, as much angst as you want, sad-whatever! Requests are closed as I'm no longer writing for this book. Some milestones: #1 in Sans #1 in Kris
~ π„π±π©π’πšπ­π’π¨π§ ~     {π‘΅π’Šπ’ˆπ’‰π’•π’Žπ’‚π’“π’† 𝒙 𝑹𝒆𝒂𝒅𝒆𝒓} by dream_syzygy
dream_syzygy
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100 years after the tragic events of Dreamtale, the two brothers continue a war of hate and love. Any AU unfortunate enough to get in the way of the darker brother's path is either conquered or destroyed. Your universe, Recoveryswap, just so happens to be in the most recent crossfire. But with your personality and luck, you may just find yourself on the path you've always wanted. A path of violence, a path of excitement. And who knows. You might be the saving grace for a fallen prince. (It is highly recommended that you read 'Dreamtale: Origins' before this book.) [All characters belong to their respective creators. I am only the creator of Recoverytale/swap.] -Cover Art by Unknown- Book 2 of the Dreamtale Trilogy
~ π™³πš’πšŸπš’πš—πš’πšπš’ ~     [π·π‘Ÿπ‘’π‘Žπ‘š π‘₯ π‘…π‘’π‘Žπ‘‘π‘’π‘Ÿ] by dream_syzygy
dream_syzygy
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100 years after the tragic events of Dreamtale, the two brothers continue a war of hate and love. Any AU unfortunate enough to get in the way of the darker brother's path is either conquered or destroyed. Your universe, Recoverytale, is a peaceful universe. Monsters and humans live together in harmony, and you simply love helping others. Everything was absolutely perfect-yet it felt like something was missing. But then the attack happens, and you're pulled into a whirlpool of magic, emotions, and more universes than you can remember. But don't worry. You'll have a new team by your side. And who knows? Maybe you'll find that missing piece. (It is highly recommended that you read 'Dreamtale: Origins' before this book.) [All characters belong to their respective creators. I am only the creator of Recoverytale/swap.] -Cover Art by Unknown- Book 2 of the Dreamtale Trilogy
The void in my heart (Gaster X Reader) by InaJSendie
InaJSendie
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You're a human girl, living on the surface with Frisk, who is your younger sibling. You one day find two children, who's been chased away from neighborhood to neighborhood. And with you're kind soul, you couldn't leave them to live in the streets. You take them in, and meet their father. But will one day, lose them, because of a war. There is some ErrorBerry, and PaperFresh in this too.
Adopted By Monsters  -Undertale Γ— Baby Reader- by Mirror-Moon
Mirror-Moon
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Spoilers! If you have not seen both pacifist and genocide routes of Undertale, get out! You have been warned! Sans finds a baby on the streets. The monsters of Undertale decide to adopt them. What can possibly go wrong? More than they thought. Undertale, images, music, and all that stuff does not belong to me. All credit to them!
HP (W.D. Gaster x Reader) by Dunce_Reads
Dunce_Reads
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You lost your father in the war against the monsters. If it was up to you every last being that fought against man would be sent to execution. But it wasn't your choice.... unless it was? That's when you decide to visit the underground. All you needed was one excuse to rage another war against the monsters this time without showing mercy. But what you didn't expect was HIM. The monster that gave made you question your own methods. The monster that didn't treat you like a freak. The monster that gave you the only aspect you lacked.... HOPE.
βˆ†Β°{The Darkest Souls}Β°βˆ† | Gaster x Reader by LilPotatoTrash
LilPotatoTrash
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When the monsters were sealed in the Underground, a few humans, still loyal to monsterkind, went with. (Y/N) Was one of them. She was a Scientist, one of the most brilliant minds of the monster world, and ended up working alongside the Royal Scientist. W. D. Gaster. And, despite her knowing better, began to grow attached to the mysterious Scientist... °°° *Does Potato Dance* dippity dee, fanfiction from me! (Get ready for some cringe, but with proper punctuation and spell check! XD) This is my first x Reader, so advice is always appreciated! Oh, and for my sinners out there, a lot o' foreplay is in order. STAHP MORAL PEOPLES ?-( Ν‘Β° ΝœΚ– Ν‘Β°)-?? Enjoy the read! Potato Forever, LilPotatoTrash