Undertale Fanfictions
21 stories
Ungrateful (Geno!Sans x Reader) by BubbleBerryUniverse
BubbleBerryUniverse
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    Parts 33
account inactive. you can find me on @Mini_Crushies
UF!Sans X Reader (Finished) by _The_Creator_
_The_Creator_
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Unlike other stories, monsters and humans have already joined. Nothing was ever easy for you AT ALL. Your mom died when you were 6, and ever since then, your dad was.... different. Your a 17 year old girl, and you ran away when you were 15. You decided you couldn't take the pain. Hope you enjoy my story, and sorry if I misspell some words. Autocorrect never works correctly.
Underrising Love (Sans X Reader) by Styla_Mythic
Styla_Mythic
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Monsters have returned! (Y/N) is waisting no time to find out more! After running into a hyper skeleton twice you slowly start meeting and growing attached to a new group of monster friends. One however is more likeable then you thought. (This is Sans x Female reader)
Kitten (-gaster!sans x reader-) by Ghost_noodle
Ghost_noodle
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The monsters were freed from the under ground. The humans are racist toward the monsters but the leaders of the human race have decided to restrict any human or monster to harm another to prevent another war.
Dancing on my Own {Sans x Reader} Dancetale by _Kochii_
_Kochii_
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Why don't you read and find out? *eyebrow raise*
Start A New Again •Sans X Reader• by artsyTrashpile
artsyTrashpile
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Knife in your hand. The still air in the hall sends chills down your spine. You've been here many times before, why does it feel different now? I've been here about 50 times... the same faces, the same bloodshed, the same timelines all over again. But this time, it... this. This doesn't feel right. There he is, as always. "Let's just get on with it. You're not gonna keep this going as long as I'm here, Demon." And all the same attacks, over and over and over. And over. And over. But you always managed to kill him in even less turns as the timelines went by. "*SLASH*" It has been done. Again. You didn't even feel pleasure from this anymore. You changed. "And there you go, *cough* you'll reset again. You'll kill again. Y/n, you used to be so different on the FIRST *cough* timeline. What happened?" He managed to say, still gripping tightly his wound. "Easy. I became a BETTER person." I chuckled evilly, moving onto the Throneroom, killing Asgore and into the dark abyss where I always press the same button. "WAIT! Before you press it, please heed my words!!" A voice. A different one from my ultimate bestie, Chara. "Who are you, and what are you talking about?" I looked around. No one. (Who was it? Find out in 1!) -Hallo! A new book, as promised. In chapter 12 or 13, Im gonna play a song related to the book title, for which Caleb Hyles collabed with Jonathan Young, hence the name Start a new again. Part of the song. I bet you already know what the song is. Just wait. OK bai BTW, this is my cover art. You can find it in My Artbook, and you can most definitely use it! Just PM me and mention me about the art. Start date: Nov. 27, 2016 End date: January 15, 2017 (wow, I wrote this book in the midst of 2 months or lesser)
{Broken Already} Gaster Sans x Reader by _Kochii_
_Kochii_
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"That's how I ended up here." "Seems bad." "Oh no, it was hell."
Cryophobia - (Sans x Reader) by trainerblueoak
trainerblueoak
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Next person to comment on this monstrosity gets fucking vored!! × ❝You made your choice a long time ago.❞
A Tree, For Us (Sans X Reader) by TheAbandonedQuiche
TheAbandonedQuiche
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CONTAINS SPOILERS FROM BOTH PACIFIST AND GENOCIDE RUNS After a horrible situation, I (Y/N) scaped from home to avenge my (sibling). In a failed attempt, I got lost and fell through a hole, in there I found another world... "the underground". I meet many friendly monsters, one, specifically, changed my whole life. Both of us will try to give the monsters the liberty they deserve. And this is how all happened... (Cover made by me :3)