Undertales aus
110 stories
Curiosity | Sans x Reader by ChLuKa
ChLuKa
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[This was my first ever story and I hate it. Read at your own risk.] "Legends say, those who climb The Mountain, Never return." {COMPLETED 22-6-17} ((UNEDITED)) (22nd June 2017)
My treasure : Dust x Blueberry by FKathleen19
FKathleen19
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Part five of the My treasure series, centered around the Dustberry.
LORN by EinPierce
EinPierce
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Lorn: Adjective. Meaning: *Pitiable in circumstances especially through abandonment.* (UNDER HEAVY EDITING) Sans Aus X BSD!Child!Reader What do you think could happen to a young child abandoned by all? Forgotten by his own older brother and tormented for actions he never committed. Only to be saved by skeleton who only wishes to take him for pure entertainment. Will Error learn what it is truly like to be a father or stay forever evil and manipulative? Read to find out as I try to write this story without a ton of cringe. :)
When Death becomes an accidental Cupid. by FKathleen19
FKathleen19
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Who would have guessed peace would be achieved between the Bad and the Star thank to Geno and Reaper... BY ACCIDENT ?!
FGOD Error in Dreamswap (COMPLETED) by AstrileWritesStuff
AstrileWritesStuff
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NOTE: A old fanfiction created by me during Covid 2021-2022 back when I was invested in Undertale/Undertale AU's. If you're looking for angst or topics being covered more seriously this story may not be made for you as it's mostly light hearted and written during long car trips or when I was bored. I would like to thank you for all the support this story has received despite it being written with poor grammar and little to no plot, and it always makes my day reading your comments left on the story, (yes, I still read them) thank you all! It's all thank you to you guys as the readers who got this story to 82k reads and 2k votes <3 I will not be altering or editing this in any way, if I had to suffer reading grammar mistakes now you do too 😔 What would happen to Error if instead of ending up in the NaJ universe he ended up in Dream swap? (THIS BOOK IT COMPLETED) (I dont own book cover or FGoD Error) (origanal?) (I created Erranuam)
SwapFell! Sans x Shy/Scared! Reader by EmilySkelewolf
EmilySkelewolf
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You'd often dream, you never actually had.. um... friends... When you fell down and met the skeleton brothers... Why do you feel weird around Sans?
I wonder how we got here... (swapfell sans x Mercyful!Funny!Reader) by Undertale_Kit
Undertale_Kit
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NO LEMON
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^)~
Tip The Scale (EV!Dream x Reader x EV!Nightmare) by OreoDaSkeleton
OreoDaSkeleton
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The war between the two guardian rulers and their kingdoms lasted for countless generations. Then came the news that Nightmare went ahead and got himself some new "friends".. Dream's soldiers were easily overpowered. Battles were being lost and the shadows began to completely overpower the sunlight's rays. With the scale of life's balance beginning to tip, Dream needed a quick solution.. The King needed a Queen. The arranged marriage would spread positivity and hope throughout his entire kingdom. Maybe, just maybe, it would give them the boost they needed to defeat Nightmare once and for all. Hi, it's Writer~San aka OreoDaSkeleton! Undertale and it's aus, characters, and fanart do not belong to me. However, this story is genuine and 100% mine! Thanks for checking it out! -w-
Gaster x Reader by MoonReader109
MoonReader109
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Pretty self explanatory. This takes place after the Pacifist route in Undertale. Through determination, Frisk was able to bring back Chara, Asriel (Asriel is Flowey per say), and Gaster. I believe that Gaster is the father of Sans and Papyrus. I also don't believe that Chara is evil. The monsters are on the surface, and although they are amongst humans, most humans have accepted them.