Undertale AUs, Headcanons, and Other Dumb Things - Marshie - Wattpad

Undertale AUs, Headcanons, and Other Dumb Things

Reads 6,968
Votes 189
Parts 39
Time 53m

Reads 6,968
Votes 189
Parts 39
Time 53m

headcanon spoilers undertale undertaleau

WARNING: This book (thing) contains spoilers for the game Undertale. If you have not beaten the game and don't want it spoiled for you then back out now! 

If you want to know more about any of these just ask.
Note: some AUs may have plot holes. I'm working on them (I'm open to suggestions)

Undertale (c) Toby FoxAll Rights Reserved

headcanon spoilers undertale undertaleau

Table of contents

39 parts

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Deltarune Scenarios (+Oneshots) by RoryTheVoidWriter

Seriously though. I'm just joining the bandwagon. Feel free to jump in for a ride. (A/N: A super, SUPER duper old dump of headcanons I wrote waaay back when I was DT-obsessed. I didn't have the heart to delete it, so I'm keeping it public, for old times' sake.)

A Nutcracker's Wish by LJadeite

☆ A Nutcracker Frans Au ☆ ~ COMPLETED ~ On the day before Christmas Eve, Frisk was contented to be celebrating such wonderful event with her sister Chara and aunt Toriel But things turn out to be more interesting when her Uncle Asgore surprises her with a toy. But not just any toy, a nutcracker one! Who would ever thought that this toy would make Frisk's Christmas much more magical than it was before... °•°•°•°•°•°•°•° TAKE NOTE: If you don't know anything about the game "Undertale" by Toby Fox then I would suggest for you to leave this book as it may contain some things that may leave you to your confusion and may spoil you about the game. Thank you. 😁 I hope you all enjoy... 😊 Total Chapters: 6 chapters + Prologue & Epilogue (14,389 words in total) Started on: December 20, 2019 Ended on: December 29, 2019

Undertale : Secrets (REMASTERED) by ItIsComic

Sans has had an interesting past. A past that even his beloved brother barely even knows of. A past that, despite being so long ago, always finds a way to bite back. A past that defines who he is - but he longs to erase. A past that doesn't let go, it clings to him despite his endless attempts to escape. And when someone finally attempts to uncover the veil, and fails in the process, what happens next? This book is a complete remake of the original Undertale: Secrets that was made nearly 3 years ago. By remake, I mean that this book takes the general plot of Secrets and basically "tries again". This will reuse elements of the original and cut out the parts I don't like while adding my own new ideas, effectively creating a new book. Whether you liked the original or didn't even read it, I hope you like this!! Inspirations: The "Better Times" trilogy by: @ANinnyMouse42 "Royal Blue" by: @dealialestine Started: 17 March 2024 Finished: Not yet! Undertale by Toby Fox

Protect One Another - US!Papyrus x Reader by robin-rights

Trauma is a powerful thing, and not something to be taken lightly. Especially if your "best friend" is the cause of it. But friendship, understanding, and love, are also powerful things. They can save someone from the depths of despair. And those people that pull us from terror are often the ones we fall in love with. Platonically... and sometimes, romantically. *** Undertale and all original characters belong to Toby Fox, Underswap and its characters belong to Popcorn Pr1nce (inactive tumblr now). Date Started: March 7,2021 Date Ended: June 12, 2021 Impressive Rankings: #717 in undertale (of 48.3k stories) #3 in undertaleau (of 5.1k stories) !!WARNING!! VIOLENCE, SUGGESTIVE HUMOR, MENTIONS OF "ALCOHOL," SUPER BAD AND OLD WRITING Cover done by me, art isn't mine though. No art in this book belongs to me - credit goes to amazing artists who put in their effort to make amazing stuff for us.

A Destiny's Promise (UT Sans X Frisk) by LJadeite

*COMPLETED* DISCLAMER: Cringe warning. This is my first book I have ever written so please bear with the grammar and spelling issues inside. DO NOT READ IF YOU DON'T KNOW UNDERTALE. Life isn't that easy like we've always thought off. Everything changes as days went by. And that's a fact. After the years, Frisk started to fall for a certain skeleton, which has the same mutual feelings as her. But what they didn't know is that they are putting everyone they love in grave danger... HOPE YOU ENJOY THE STORY!!! (Undertale and its respective characters belongs to Toby Fox. Story plot and OC's made by me) Started on: 10/16/17 Ended on: 8/11/18

𝐒𝐀𝐍𝐒𝐗𝐑𝐄𝐀𝐃𝐄𝐑 𝐎𝐍𝐄𝐒𝐇𝐎𝐓𝐒 by luiexette

helloooo ~ feel free to check what's inside~! the title says everything, contains all sorts of genres, weird plotlines, scenes, and a LOT of cringe. votes and comments are highly appreciated! <33 (even though i don't reply often, the comment box is open for your thoughts! ^-^) ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ꒰🖇꒱ 私は安定していると思う。♡꙼̈ ࿐࿔ status; ongoing‚ slow updates. » oneshots cover belongs to ? (can't find orig. artist yet) spotify playlist: https://open.spotify.com/playlist/39HK38sNbGPoBCwY3FdNTP?si=N3ZlqrtWTy-woloSpJQTcw&pi=5BzB0YqyTwS_S • weird plots and such ✧ @luiexette

UNDERVERSE by isimpforanimeboys1

!THIS BOOK WILL NOT BE UPDATED!FOR FULL STORY, CHECK OUT JAKEI ON YOUTUBE AND PATREON! The story takes place in a post-Pacifist timeline in the original universe of Undertale, where half of Sans' soul is stolen by a corrupted alternate version of himself known as Cross, who has his Chara inside his body. With the help of Ink -the guardian of the AUs- Sans will travel through the Alternate Universes to recover his soul while he discovers the origin of Cross and the imminent danger that will put the Multiverse at risk: The Overwrite button. Undertale - Toby Fox XTale - Jakei Inktale/Ink - Comyet/Myebi Error - Crayon Queen Fresh - Crayon Queen Aftertale/Geno - Crayon Queen Dreamtale/Dream/Nightmare - Joku Underfell - AU Community (The creator wishes to remain anonymous) Underswap - AU Community (The creator wishes to remain anonymous) Outertale - 2mi127 Core! Frisk - Dokudoki Undernovela - Pig-Demon Killer! Sans - Rahafwabas Fatal! Error - Xedramon Mild Swear and Violence Warning. Hope yall enjoy my suffering :D (Original story by Jakei - Transcribed by isimpforanimeboys1) Hey! You've reached the bottom. Quick note, the editing in this is quite bad. I wrote this in 6th grade, and I'm not very proud of it. There are multiple mistakes, such as me calling Underswap!Chara Frisk, and referring to X!Chara as they/them. PLEASE DON'T PAY ATTENTION TO THESE MISTAKES. THANKS FOR READING THIS.

Undertale:Secrets by ItIsComic

Remaster on my page - check it out! Sans has had an interesting past. A past that even his beloved brother barely even knows of. A past that he wishes could remain a secret. But when the questions start being asked, what does he do? These questions seem so little, yet they cause so much to happen. One little question. "Who is ??????" can change so much. A chain reaction from a single sentence can cause an entire world to crumble. Or maybe two. This is my first book so dont expect anything great. Inspirations: The "Better Times" trilogy by: @ANinnyMouse42 "Royal Blue" by: @dealialestine Started: 24th May 2021 Finished: 29th December 2021 A full 7 months of great fun with this book! Cover art by someone? I couldn't find the original owner :( Undertale by Toby Fox

Sanscest One-Shots by NightDragon574

First book One-Shots for any ships. Will do anything request, including •Angst •Fluff •Lemons May make into full books if wanted. All characters belong to original creators and Undertale belongs to Toby Fox I suck at description 😃

Sanstastic (Sans x Reader) by InsertAestheticName

~Undertale Spoilers~ The barrier has been broken and now monsters roam the surface again and you find a familiar face with some new friends. Maybe some are even more... Credit to Toby Fox for anything in this story from Undertale. Also Credit to whoever created the fanart. I don't know whose it is, but it isn't mine. UPDATE: I REGRET THIS 100%

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Slide 1 of 10

Deltarune Scenarios (+Oneshots) cover

A Nutcracker's Wish cover

Undertale : Secrets (REMASTERED) cover

Protect One Another - US!Papyrus x Reader cover

A Destiny's Promise (UT Sans X Frisk) cover

𝐒𝐀𝐍𝐒𝐗𝐑𝐄𝐀𝐃𝐄𝐑 𝐎𝐍𝐄𝐒𝐇𝐎𝐓𝐒 cover

UNDERVERSE cover

Undertale:Secrets cover

Sanscest One-Shots cover

Sanstastic (Sans x Reader) cover

Deltarune Scenarios (+Oneshots)

Seriously though. I'm just joining the bandwagon. Feel free to jump in for a ride. (A/N: A super, SUPER duper old dump of headcanons I wrote waaay back when I was DT-obsessed. I didn't have the heart to delete it, so I'm keeping it public, for old times' sake.)