Best Undertale Fanbooks
10 stories
Twenty-Something Years After (Sans X Reader) by mswordyq
Twenty-Something Years After (Sans X Reader)
mswordyq
  • Reads 43,674
  • Votes 2,283
  • Parts 21
[SEQUEL OF AT THE SURFACE, IF YOU HAVEN'T READ IT, READ THAT FIRST PLEASE] Summary: (y/n), even to today, was still a legend. Everywhere she went, people would honor her and still bring her gifts. All of this, because she apparently "contributed" to locking those savages away. Oh, how she hated what they thought, but they will never know the truth, and it would be better if they all didn't. Now we are 20-something years after the war, she's a divorced, single parent of a 14 year old girl. But her daughter isn't exactly what she had imagined her to be, in fact, her birth-daughter looked nothing like you or your "spouse". She looked exactly like the girl with rosy cheeks. But she didn't act anything like HER. She was a nice, and quiet girl. Of course, she grew stubborn like you, but regardless of what happened, she was always kind. So, it confused you, but you were happy with her. It's just when she disappears, when things start to twist. You were alone in this world, without parents, without a spouse, and no one to really trust. Little do you know...her disappearance, was for the better.
Silently Sleeping (Underswap!Papyrus x Reader) by GamerQueen2002
Silently Sleeping (Underswap!Papyrus x Reader)
GamerQueen2002
  • Reads 248,054
  • Votes 10,962
  • Parts 37
Underswap!Papyrus x Reader And some Fresh!Sans x Reader -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- It isn't hard to slip into a dream. You're happy with what your mind makes up and you stick with it until you wake up. Nightmares are hard to sink into. Death, tears, bloodlust, screams of terror and agony. You eventually wake up crying and wondering why your head would come up with something so sadistic. You're not in a dream. You never were. It's always been a nightmare. Always. -_-_-_-_-_-_-_-_-_-_-_-_-_- "My heart fills so... empty." "Please don't do this, (Y/n)!" "I'm sorry I caused so much pain... but we both don't have to suffer anymore."
When Two Fates Intertwine (Sans x Reader) by ZanaBSparrows
When Two Fates Intertwine (Sans x Reader)
ZanaBSparrows
  • Reads 93,776
  • Votes 2,655
  • Parts 13
[THIS IS A SEQUEL TO MY OTHER FANFIC "WHEN TWO SOULS MEET!" If you haven't read it, I would highly suggest it--the story won't make much sense otherwise.] Sans has finally found someone he can trust--Frisk's sister, the eighth fallen human. After months of step-siding and awkward interactions, the two are finally a couple. Things are finally falling into place--there are no more resets, and Chara and Flowey have been a lot more quiet in the last few months. But things can't stay this way... can they?
A Journey Together (Sansby) by Blue_Diamond5
A Journey Together (Sansby)
Blue_Diamond5
  • Reads 195,958
  • Votes 8,280
  • Parts 65
The barrier is finally down, and a new life is right up ahead. Opportunities never seen before are presented, in a world where monsters can finally feel the warmth of the sun. The world isn't perfect by any means, as there are still many obstacles to overcome, such as the discrimination monsters face at the hands of certain groups of human individuals. Despite the imperfections, the monster population is determined to make this their new home. In just a few months, monsters spread throughout the surface and bring their cultures and traditions. Grillby's bar, is no exception. Sans no longer feels that hopelessness, as he believes this is the fresh start he's been looking for. Over time, he ends up growing closer to Grillby, and their relationship grows past the stage of being best friends. Will you partake in their journey together? Read more to find out. DISCLAIMER: This book does contain sensitive topics, so read at your own discretion.
At the Surface (Sans X Reader) by mswordyq
At the Surface (Sans X Reader)
mswordyq
  • Reads 507,026
  • Votes 20,626
  • Parts 62
The monsters have finally made it to the surface and have been legalized to roam the surface as they please. The first couple of months have been spent as a paradise where humans and monsters have lived in peace and happiness. But as we all know, humans tend to be afraid of what they don't understand and the appearance of the monsters only seemed to have fueled the rising tension. You are a member of one of the biggest clubs that support the monster's appearance, known as the FMC (For Monsters Corporation). There is a rival club, known as the DM (Destroy the Monsters) that only wants to exterminate the existence of the monsters, and with every passing day, conditions only seem to be getting worse. Determined, you try to make things right and equal for all beings, but things start to alter when you meet with a certain skeleton. And with this certain skeleton, you, dear reader, reveal your biggest, most valuable secret...your little "defect". •°•°•°•°•°•°•°•°•°•°•°•°•°•°•°• COVER ART IS NOT MINE, I ONLY EDITED IT OUT FOR MY COVER. UNDERTALE DOES NOT BELONG TO ME, IT BELONGS TO TOBY FOX. I am simply writing this for the sake of my imagination, as well as for the entertainment of others. Thank you.
Painted Strings (Ink x Error)  by Ruthko32
Painted Strings (Ink x Error)
Ruthko32
  • Reads 328,826
  • Votes 8,943
  • Parts 44
Ink and Error has been fighting for many resets/years. One day Ink wanted to stop fighting confronting to Error. Error took it as an advantage attacking Ink but Ink didn't fight back... As Error caught Ink in his string Error was confused... Why is he not attacking? Why is he getting himself killed? What is this feeling burning inside of his chest when he see's him Ink like this... Why? #1 for Cream 0^0 Oml-
Chat Logs | Sans x Reader by TheShippingFairies
Chat Logs | Sans x Reader
TheShippingFairies
  • Reads 556,717
  • Votes 27,481
  • Parts 86
Sans and Alex happen to meet trough a chatbox. What will be the outcome when two completely different people become more than friends? This is an actual slow burn holy shit
(Sans x Reader) When Two Souls Meet by ZanaBSparrows
(Sans x Reader) When Two Souls Meet
ZanaBSparrows
  • Reads 957,536
  • Votes 27,522
  • Parts 28
Sans has lived through countless timelines. He's seen the kid make friends with everyone, only to give up in the final moments. He's seen the kid killed, over and over and over again. Sometimes, he'd even done the killing himself. And no one ever remembers. Not even the kid herself. It's an exhausting cycle, one that never seems to end. But there's something different about this run. Another human's fallen down... the kid's sister. Please note the the story is primarily on Quotev, so updates to Wattpad may be late, or lag behind that of Quotev. The story also has the potential to become mature. (I haven't decided yet.)
Her (Sans X reader) by AddisynDaKilla
Her (Sans X reader)
AddisynDaKilla
  • Reads 148,585
  • Votes 4,698
  • Parts 58
It's kind of a Sans x reader. I named the character. Oops. Welp, here we go! This has potential I promise. Just give it a chance. Please.
My One and Bonely (Sans x Reader) by Flutterbat276
My One and Bonely (Sans x Reader)
Flutterbat276
  • Reads 623,229
  • Votes 20,043
  • Parts 36
My first story. It's a sans x reader fic, so don't judge too harshly. Also I have some bad pacing issues, but I hope yall will ignore them. Anyways on with the summary! You see monsters everywhere. All of theme unique and friendly. You ask "how could anyone hate them?" When you save one of them, you're life takes a drastic turn.....for the better. Highest rank: #16 in Undertale (June 2020)