Undertale AUs
20 stories
Hey, Doll | Gaster!Sans x Reader by dacatnxtdoor
dacatnxtdoor
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Alone in a condemned world where monsters and humans fight for power constantly, Y/N survives off of the wood's riches and the small scraps of shelter she can find in ghost towns. Allies and friends have come and gone during the war, either killed or have parted ways. It's not all that bad. She could be dead, after all. One afternoon when shipments from the Human Capital come on a train, she meets a mysterious stranger who saves her life. He's a monster, no doubt, a skeleton to be exact. Y/N is intrigued by the monster and decides to follow him into the next town over where he disappears into an abandoned warehouse. Y/N follows him in only to be pinned to the wall for questioning. After answering all his questions, introductions are made and Y/N learns that the skeleton's name is G. Y/N likes G despite his hateful nature and somehow convinces him to let her come along on a quest he's taking to save his brother from the Monster Capital where they took him for war. After surviving assaults, the government, and Mother Nature herself, Y/N and G start to form a special bond that neither of them wants to break. But when everything goes wrong and neither of them is strong enough to prevent it, Y/N finds that the capitals that she had always hated are far more sinister than she could've ever imagined. ((COVER ART IS NOT MINE))
Rad one shot brah. (Sansy fresh x Reader) by _LeviAckerman
_LeviAckerman
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broski, i tried everywhere looking for a one shot or a story for my main man fresh, ya dig? but what the friggidy fresh, there are like close to none brah. decided to make one cause this freshness cant be contained. cya on the flip side my broski.
UnderFresh Sans x Reader by Hick-dog
Hick-dog
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first story. I'm sorry reader-chan for what you are about to read. ENJOY!
My Princess (Male! Chara X Fem! Reader[DISCONTINUE] by Possibly-Chara
Possibly-Chara
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~Cover is not mine darlings~ (In this story Chara is 19 and you are 18) ❝Greetings, I am Chara❞ After finishing the genocide route, as your first gameplay, you restart and do a pacifist route, but gave your soul up to do so. You realize that everything is much more satisfying and quaint on the pacafist route. You even got Sans to believe that you changed your ways. Though you always got messages in your head at the most specific of times by a mystery someone. You had less power over most of your decisions though, even when Sans asked you out, and you wanted to say yes.....you declined. After Frisk broke the barrier and acted as the ambassador of monsters to humans, the humans declined, yet did not cause commotion over it. Monsters, and Frisk, stayed in the Underground, and you decided to stay as well. The barrier was resealed. ~1 year later~ You now live in MTT resort, alone. You get more messages in your mind though when alone. Then one fateful day, they ask of you to let them out of your mind. You do so. Next thing you know, Chara appears in front of you with the cheekiest of grins. ❝I must thank you greatly for letting me free❞
You're a masterpeice (Ink Sans X Artistic Female Reader) [DISCONTINUED] by Possibly-Chara
Possibly-Chara
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So monsters and humans now live together in harmony and stuff thanks to Frisk. And one day you were in a forest by a pond filled with lilypads. You decided to sketch them. Which is when you get a drop in by a very specific skeleton who changes your life forever.
The 6th Soul: How to Kill a Man | Sans x Reader by TheShippingFairies
TheShippingFairies
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[ SEQUEL TO THE 6TH SOUL ] "What do we do now? "Simple. We hunt the Hunter." -
Changes (ink sans X borrower oc) by cookiecat1231
cookiecat1231
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It's hard living with a host that changes EVERYTHING since he is the creator of the of the AU's but what happens if violet gets caught in one of those changes?
Reset (Sans x Older!Frisk) by error-code-707
error-code-707
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There are some things you just can't take back. No matter how many times you reset. After breaking free of Chara's grip, Frisk decides to do one final reset before defeating Sans or proceeding to the throne room. But some memories last longer than others, and broken trust isn't easy to repair. Female, aged-up Frisk. Starts out canon and then diverges. Eventual Sans x Frisk. Undertale was created by Toby Fox. I do not own Undertale, nor any of the characters. Some violent action scenes. Cover art is by amazing artists at http://www.zerochan.net/Undertale,Fanart and http://www.zerochan.net/Chara+(Undertale),Fanart
At The Mercy Of A Flower by gracemar100
gracemar100
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THIS IS THE SEQUEL OF SO THIS IS DETERMINATION READ THAT FIRST OR ELSE YOU WILL HAVE A BAD TIME! Now Sans is at the mercy of a certain flower, who is the only one that can save Frisk from an almost inescapable fate.
Be Skeptical Of Their Smiles Of Plated Gold by DeadDJButterflies
DeadDJButterflies
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What if Frisk never freed the monsters, what if they were never banished in the first place? Monsters have been showing up dead on sidewalks and behind alleyways. It's now Frisk's job to find the killer before they can cause any more damage. But her teenage mind is distracting her. (Very intense undertaletale fanfic, be warned!)