Undertale/Undertale AU stuff to read
16 stories
Kustard Soul Mates (in writing process) by Yuki_TheDarkWolf
Yuki_TheDarkWolf
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sOoo I've had this idea where they have soul mates. Like everyone is born with a half heart necklace. Every time the person gets near their soul mate it will heat up as they go farther away it gets colder. EEE I couldn't decide wether I wanted this to be errorfresh or kustard so not many people like errorfresh so it's kustard ;-;
Sancest one shots (Completed) by _forgotten_soul_3
_forgotten_soul_3
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Yeah I'm doing this now. If you want more info go to the first chapter there will be some rules like how to request. Okay? Okay. Let's go! Also take whatever you think is cannon and leave it here because this book ain't about any of that. (Non of the art is mine unless stated otherwise.)
The Bad Time Heroes - Bad Time Trio Meets MHA by BurningWoodGaming
BurningWoodGaming
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The Bad Time Trio Meets MHA!!!! I hope you enjoy!!
Rarepair Oneshots - Undertale AUs by FallenAsleepYetAgain
FallenAsleepYetAgain
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Rarepair - A ship or paring that not many people ship or is very rare to find fanfiction and fanart of. This book is going to be a collection of oneshots for ships that I would like to show to you all. They will usually be my personal favorites but if you have any ships, feel free to throw them at me! I'm always up to suggestions! Don't forget: popular ships are also included, but it will be mainly rarepairs, the popular ones may come, but they will be turned on their heads, not sure yet haha. Please remember that this isn't limited to monogamous ships either, I'll happily write poly things too! Please note! In every story it is unlikely that Dream and Nightmare will be related to each other! If you see something that might pair the two romantically, please be aware that I DO NOT write them as brothers, thank you.
Killermare Oneshots by coppermeadows
coppermeadows
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An assortment of oneshots revolving around Killermare, a ship between Killer!Sans and Nightmare!Sans. Requests are open. Cover by me, message for proof.
Homey by coppermeadows
coppermeadows
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    Parts 21
A Killer x Nightmare story. Completed✔️ Rewriting. After killing everyone within his timeline, a mysterious figure appears in his house, permanently changing his life. He offers Killer a position on his team of murderers, only for a certain someone to prey on the newest recruit. As Killer slowly starts to unravel the truth, he finds himself developing feelings for the very man who landed him in this entire situation and changing the group for the better along the way. Trigger Warnings: Depersonalization, derealization, depression, intrusive thoughts, manipulation, anxiety attacks, anxiety, self-depricating thoughts, mentions of suicide,(descriptive) gore, torture, and death. NightKiller Killermare NightKill Human universe. Medium burn. No sin/smut. The cover is drawn by me.
~Skeleton Love~ ((Killer x Nightmare)) by dremisgae
dremisgae
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He loves me... He loves me NOT. Art on cover is not mine and I do not claim it as my own. I will do research and eventually figure out who made it. [[THERE IS SWEARING!!]]
Chara x Reader by anjistar
anjistar
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    Parts 46
It's been a few months since monsters entered the human realm, but there's something else biting on the mind of your best friend Frisk - and she bears a lot of history. Whilst you and Chara grow closer together as two young adults on the surface, you learn that the hardest problems are the ones you made yourself. Why are some people luckier than others and what does it take to be human? Perhaps there's beauty in normality. Why do these questions feel so pointless to me? ~ (16/F) Chara x (16/M) Reader ~ Includes Sexual/Mature Scenes And Possible Unhappy Themes ~ Five Continuous Story Arcs ~ Grammar [British English] *1st August 2017
Fading Ink by FaeMytho
FaeMytho
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The Multiverse is fragile. Even the slightest shift in the fabric of time, even the slightest wrinkle, could cause everything to disappear. If one universe collapses, so do many more. But as long as most of them are healthy, the Protector is alive. The Multiverse depends on Balance. But where no Balance exists, no Protector can live. Just how many universes did the anti-void take with it when it collapsed? Certainly enough, because the Protector seems to be dying. How ironic is it, that the Protector must ask the Destroyer to save the Multiverse? [note: I do NOT own the cover image, I just edited it. Kell0x owns the original image on tumblr] IF THIS IS YOUR FIRST TIME SEEING THIS FIC, SKIP TO THE END CHAPTER! YOU'LL BE ABLE TO FIND THIS FIC ON AO3 FROM NOW ON!
Human killermare short stories by KillerMare_Vist
KillerMare_Vist
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Just some human au killermare stories I came up with. They will be short doe. Both are still male too.