
#1
Poppy Playtime ~ An Angel's Bleedi...by Godly_Dragon_Knight
He did not want to go back, he really didn't want to. But the more he tried to shake the thought out of his head, the letter will always reappear, crawling from the dept...

#2
Bromance Romance ~ sansby fanficti...by Howdy I'm Jay
One last reset, Frisk promised. One that will fix everything. But they made Sans promise something in return for getting everyone on the surface.
~ This is a story that...
Completed
![Divided [ Sans X Reader ] by morrow-](https://img.wattpad.com/cover/79695931-512-k737626.jpg)
#3
Divided [ Sans X Reader ]by space sloth
Almost four years marking the anniversary of monster kind reaching the surface, the human ambassador Frisk goes missing. Severing the link between the two species, an al...
Completed
![Male reader x UNDERTALE [FINISHED] by Simon-san](https://img.wattpad.com/cover/175354211-512-k679593.jpg)
#4
Male reader x UNDERTALE [FINISHED]by Simon
With no memory of your past, you find yourself in the underground. Your path to regain memory will be as eventful as it comes but try not to dive in the abiss...
Completed

#5
A Destiny's Promise (UT Sans X Fri...by Jadeite
*COMPLETED*
DISCLAMER: Cringe warning. This is my first book I have ever written so please bear with the grammar and spelling issues inside. DO NOT READ IF YOU DON'T KNO...
Completed

#6
Just SING | Sans X Readerby -
--Long ago, two races ruled over Earth--
--HUMANS and MONSTERS--
--One day, war broke out between the two races--
--After a long battle, the Humans were victorious--
--T...
Completed

#7
senseless | l.hby witch mom
"Oh, baby, senseless is a relative term."
⋆ in which a girl who ironically hates
change, meets a boy who ironically
endures pain to deal with a...
Completed

#8
My Anomaly (An Error Sans X Reader...by Nightmare
When your sibling Chara goes missing you fear the worst, but life takes a surprising turn for the better when they release the monsters trapped underground. Living this...

#9
Frisk: God of the Worldby HeroicSpectre
It has been one year since Frisk freed the monsters. Asriel is still missing, and dear Chara is still trapped inside his head. Meanwhile, Sans confronts Frisk about his...
Completed

#10
Power to Heal (Underfell!Sans X Re...by Justmonika
You wanted to help but it was too late...
So, you left.
Tears filled your eyes as you thought of the one person that needed you the most...
They were gone and it's your...
Completed

#11
Can I Stay? (Underswap!Sans × Read...by Justmonika
[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...

#12
Sans x Reader | Empireby 𝙻𝚊𝚣𝚊𝚛𝚞𝚜
(Adult Lazarus here - I wrote this when I was like 14 years old. Forgive me.)
Sometimes life gets to the point where you feel like you're a paper airplane.
One minute yo...
Completed

#13
Not Just Evil (Underfell Papyrus X...by Indie
Underfell Papyrus is viewed as one of the most ruthless monsters in the underground but what is really under that tough persona?
Thanks to Tamqul on Deviantart for letti...
Completed

#14
Last Chance For Redemption (Chara...by alguemimportante100
After commencing the neutral genocide path, "(Y/N) (L/N)" regrets slaying all the monsters and decides to start again, with a new objective in mind: Free all m...
![Undertale - Fight For Your Future [Frans] [Book 1] by SepticGirl88](https://img.wattpad.com/cover/80499803-512-k776401.jpg)
#15
Undertale - Fight For Your Future...by SepticGirl88
It's not easy to not be haunted by things in the past. Especially when those things from the past just won't stop coming back. They won't stop coming back, and they won'...
Completed

#16
Undertale: Tales from the Dreemurr...by AlphaAndOmegaWolves
Join Frisk, Chara, Asriel, and their younger sister, Aria, as they share many happy moments together!
11 months after Frisk's most recent True Pacifist Run, they, Chara...
![Turn Me On [Mettaton X Reader] by Levirne](https://img.wattpad.com/cover/58215983-512-k236710.jpg)
#17
Turn Me On [Mettaton X Reader]by Levirne
COMPLETE
These feelings were just a bug. A bug Alphys couldn't figure out.
That's all that Mettaton knew, because after all, he was a robot and you were a human. He ran...
Completed

#18
Chara x Female Reader - Be Their N...by badbloodkiller
This is a continuation of @CreativeCurses unfinished story of similar name. Be sure to read their other story Chara x Reader - Erase Them All But You, so you know whats...

#19
Changing The Gameby Starlessz
One month before Frisk falls into the Underground a different human falls, someone that is not from this world, but from ours, and now they have the power to change the...

#20
Saving Them (an Undertale fanficti...by ded
The barrier is broken, monsters and humans are living in peace, everyone is happy except for one person. Frisk has been getting waking nightmares about not saving Asriel...
Completed