Undertale
33 stories
UnderSwap'SansXReader! by SansyReditXP
UnderSwap'SansXReader!
SansyReditXP
  • Reads 16,654
  • Votes 302
  • Parts 22
Hello People! This is my first Fanfiction and Please Do not Judge me :> be good alright? "All of your Save Files Have been Wrecked,now you start to a New world.. Will you Continue to go back? Or Stay the one you Love? The Art Was by Me :> The character doesn't belong to me The original character belong to 'TobyFox
AU Undertale one-shots by DJWinterWolf
AU Undertale one-shots
DJWinterWolf
  • Reads 2,074,701
  • Votes 12,179
  • Parts 27
This will mostly be Sans and Papyrus One-shots. Some witll have a part 1-3 or will just be medium sized story's. I will do AU's! I am a wrighter who likes fluffy or sometimes sad yet comfort stories!
Fear Me- Handplates!Gaster x Reader by luckysnackcreations
Fear Me- Handplates!Gaster x Reader
luckysnackcreations
  • Reads 50,381
  • Votes 904
  • Parts 14
WARNING!!! This story WILL contain rape/noncon and gore, inhumane treatment of the reader, and NO ROMANCE until possibly very late in the book. I plan to update frequently but that may not happen. This is being written as a guilty pleasure type thing to make me feel a little better about some of my messed up fantasies. Please do not read this if you are not ok with any of the above situations in a FICTIONAL setting. When Toriel found you, you were unresponsive. She didn't know what to do, and therefore was forced to hand you over to the royal scientist in secret, hoping that he would heal you. Unfortunately, he had other plans. Cover art by anonymous reader
Staying Frisky (Male Reader X Female Frisk) by TheUnholyGodYT
Staying Frisky (Male Reader X Female Frisk)
TheUnholyGodYT
  • Reads 646
  • Votes 11
  • Parts 16
You've been friends with Frisk ever since you've been little babies at the orphanage, not exactly knowing who your parents are. You've both taken a liking to a certain thing, and thats reading. You both have so many books, the staff gave you your own three private rooms that are filled with books that you can read at any point of day. But after dealing with a few thugs that have gotten a hold of Frisk, you run to Mt. Ebott to get away from them. Just as you think that your in the clear, Frisk falls down a hole that was in the cave you were in. As your instinct came in, you instantly rushed in to go save Frisk, but now you both are now in your own Tale in the underground. Created by: TheUnholyGod. Published by: TheUnholyGod. Published on: Wattpad. Made after reading: A True Pacifist. Credits to them for giving me the courage to finally make a Reader book! WARNING!!!! There will be some swearing in this story, so watch out for them! And there will be a lot of smut in here too. This isn't a smut book, but some chapters will be smut chapters. I will say in the chapters which ones will be smut.
✔️The 9th human-  Undertale x Reader by aesthetic-saihara
✔️The 9th human- Undertale x Reader
aesthetic-saihara
  • Reads 43,002
  • Votes 931
  • Parts 20
Frisk spared everyone. The barrier was broken. All the monsters are free. But you, an 12 year old girl on a hiking trip, fall down. Now that the barrier is broken, no one should be left in the Underground, right? This is my first story, so it might not be too good... still, I hope you like it! Cover made by @Fluffy-Bush
The Time Before (Undertale) by ANinnyMouse42
The Time Before (Undertale)
ANinnyMouse42
  • Reads 365,801
  • Votes 20,740
  • Parts 59
~o0o~ Book 1 of the "Better Times" trilogy ~o0o~ (Book two: "A Name to Remember") (Book three: "No One is Happy with This") There was a time where a Royal Scientist got an idea. A time where he created two weapons, who turned out to be people. A time where he built a machine to power the Underground. There was a time when the timelines weren't messed up by a certain flower, and then a certain child. There was a time before. ~o0o~ Wattpad Featured Story on 4/28/17 - on the OLD featured list ~o0o~
Undertale X Reader by Frei_111
Undertale X Reader
Frei_111
  • Reads 325,262
  • Votes 8,442
  • Parts 39
You woke up on bed of golden flowers without having anything to remember. Going to an adventure where you met with many monsters to go home. Easy, right? Not really, actually but anyways! - I do not own any characters from undertale -i did this only for fun, don't judge me -this story is abit (alot) angsty so be prepared~ -Chara is evil(sorry i just had to-)
Can I Stay? (Underswap!Sans × Reader) by Fruityyloopz
Can I Stay? (Underswap!Sans × Reader)
Fruityyloopz
  • Reads 235,113
  • Votes 9,675
  • Parts 35
[Prolong] My name is (Y/N). I have experienced many resets, so many I have lost count. The only people who remember are Sans, Flowey, and me. The monsters down here are misunderstood, they are afraid. They kill me again and again. Even Sans kills me, actually he is the most ruthless. The only one who never did was Flowey. He is my best friend, we have been through so much together. He has taught me to fight, I never did though. I couldn't bring myself to, if I did I would be just like the other monsters. The most current timeline, I finally convinced all the monsters that they didn't need to kill or hurt each other. It was so hard. Sans was the hardest of them all, he...he was scared of moving forward, because he believed time would just turn back. So, what's the point? But! I had finally broken the barrier. I- no, We! We were happy!! ...but still time reset. Why?!?! ... But this reset was different. I wasn't in Underfell anymore. (Cover: By- Sanspar on Tumblr) [I own none of the artwork within the chapters]
A True Pacifist (Male Reader x Female Frisk) by KryogenFalls
A True Pacifist (Male Reader x Female Frisk)
KryogenFalls
  • Reads 261,873
  • Votes 3,368
  • Parts 18
Mt. Ebbot. The mountain having more questions than answers. They say that those who enter are never seen again. We'll just have to see about that when you and your best friend Frisk enter the mysterious mountain, not by choice, but by accident. This should go well. Also, like many others, it's late and I'm bored.
Reset {UNDERTALE} by emotistic-optimistic
Reset {UNDERTALE}
emotistic-optimistic
  • Reads 117,306
  • Votes 5,907
  • Parts 19
*FEATURED STORY* As Judge for King Asgore Dreemurr, Sans has seen a lot of strange stuff. But when he wakes up with the feeling that something is completely wrong, he decides it's time to investigate with the only monster who could know what was happening: Royal Scientist W.D. Gaster.