1 - 20 of 41,155 Works in Sans (Undertale)
Navigation
Listing Works
-
Without History (maybe some things should stay forgotten) by Human_with_no_life
Fandoms: Undertale (Video Game)
21 Oct 2025
Tags
Summary
After the barrier breaks, Monsters and Humans have learnt to live together on the surface, there is still many mysteries hidden in the underground. Most of them will stay forgotten or buried forever.
Until a ‘promise’ Sans made with Frisk leads to him telling a long and complicated story. His story, well not exactly 'his', but with as many questions as it answers, it seems to raise more. One thing is for sure; this tale will change everything.
-
Tags
Summary
One day, you meet a skeleton. He's strange yet funny, easy to get along with. A few days later, you meet him again. You don't remember him, but he remembers you. He remembers every time you two first met. It's eating away at him, and you're none the wiser. Is it even worth telling you? Wold you believe him?
-
Tags
Summary
Killer piensa que cada una de las decisiones que ha tomado hasta ahora han sido las incorrectas, pero aún así acepta el trato con el guardián de Au's, quién tiene la teoría de que el asesino puede redimirse si está dispuesto a cambiar.
Le entrega viales con la esperanza de que sentir algo nuevo lo motive a superarse y le regala un diario para que escriba en él.La historia está narrada en base a lo que él escribe ahí con excepción de uno que otro capítulo extra desde la perspectiva de otros personajes...
Intento apegarme lo mejor que puedo al canon de cada personaje...sus personalidades, ideales e historia, pero obviamente, por mera ficción, hay cosas que salen de eso.
- Language:
- Español
- Words:
- 6,418
- Chapters:
- 4/?
- Hits:
- 23
-
Here Comes the Bride by FandomWorld9728
Fandoms: Undertale (Video Game), Underfell - Fandom, Underswap - Fandom, Swapfell red - Fandom, Fellswap Gold - Fandom, Horrortale - Fandom, Underlust - Fandom
20 Oct 2025
Tags
Summary
You were so excited to finally get married to your long time fiancé, only for him to leave you for another girl with nothing but a note. Lucky for you, your two best friends were there to help you through this rough patch of your life.
Series
- Part 12 of Undertales Across the Multiverse
- Part 8 of Papyrus/Reader Fics
- Part 8 of Sans/Reader Fics
- Part 1 of Here Comes the Bride
-
Rainbowtale by Spring_Winter201013
Fandoms: Undertale (Video Game), Underverse-dreamtale, Underverse-Rainbowtale
21 Oct 2025
Tags
Summary
"During Rainbow!Sans's brother's party, Rainbow decided to leave and calm down. As it turned out, someone had been watching his every move, a slimey black skeleton, Nightmare, offering a deal that Dream rudely interrupts. Will Rainbow accept this mysterious offer, even after Dream's warnings? Will Nightmare go through with his deal and hold true to his word?"
- Language:
- English
- Words:
- 1,474
- Chapters:
- 1/1
- Hits:
- 1
-
Tags
Summary
_.;⊛;._
Após serem trancafiados em um subsolo completamente desconhecido e repleto de mistérios e abismos perigosos, os monstros puderam finalmente sentir o gosto da paz. Porém, para os humanos, a herança da guerra se manteve e espalhou-se por toda a superfície, graças à ganância dos reis, trazendo morte e destruição para os mais fracos.Frisk, uma pobre criança assolada pela guerra em que nasceu, fora obrigada a fugir de seu vilarejo destruído para o Monte Ebott, mas, por causa de um descuido - ou talvez obra do destino-, teve sua história ligada às dos monstros e de seu passado.
Sua vida nas mãos daqueles que juraram vingança à sua espécie. Como tudo se desenrolará no fim?
_.;⊛;._
"✞⚐👍☜ ☠✌⚐ 🏱⚐👎☜ ☞🕆☝✋☼ 👎⚐ 💧☜🕆 👎☜💧❄✋☠⚐"
"Jamais..."Obs cronológica: Esse universo alternativo se passa antes de Lewstale (uma outra au minha) e os personagens que nela aparecem ainda não tiveram contato com nenhuma au.
_.;⊛;._
Universo alternativo de Undertale (by Toby Fox)
As capas dessa história, tal como a história em si é de minha autoria. Tenha uma boa leitura. :)
_.;⊛;._
- Language:
- Português brasileiro
- Words:
- 18,510
- Chapters:
- 1/11
- Hits:
- 1
-
Tags
Summary
Killer is an average, gender-conflicted "woman" living her life in early 1950s Boston, dreaming of something more interesting and searching for her "One" until one day, a close friend reveals his secret and suddenly her life changes in an impossible way.
-
Tags
Summary
You'd never expected to be one of those people who bonded with a random stray, and if you did, you never expected it to turn out like this. The tiny... blob of an animal was cute, affectionate, and melted your heart before you'd even named him. Unfortunately, not everything is as it seems. You've met this lovely creature before, and he definitely remembers you...
-
Tags
Summary
In the year 40XX humans and monsters have successfully established colonies in planets far away from our own, in other galaxies. Polaris VI is one of the many missions to deliver supplies to a space station overseeing one such colony. With Cross as the commander, Killer as the pilot, Dust as the medical staff onboard, and Horror as the engineer, this mission should be successful and be back on earth ten years after departure, as scheduled… little do they know this mission will change their lives forever.
Updates every monday!
-
Tags
Summary
Sans looked at the ceiling in pure boredom, unable to sleep as he listened the guards opening the gates of the inmates one by one. It didn't take long for him to hear a guard slamming his club against the bars of his cell.
He'd been told a doctor wanted to do check up on all the inmates, so he didn't really question it when he was forcibly pulled out of his cell so early.
Being pushed around wasn't fun, but at least it was exciting to meet new people that weren't convicts. They had a tendency to be assholes and not appreciate his humour anyway.
"Sans?"
He saw you, with half on your face covered by a mask as your eyes squinted in curiosity.
You were looking at him so intensively, it almost made him feel uncomfortable.
"Please, have a seat."
-
Op school battlegrounds by Unrelatedperson
Fandoms: Undertale (Video Game), Super Mario Bros. (Video Games), 崩坏:星穹铁道 | Honkai: Star Rail (Video Game), プロジェクトセカイ カラフルステージ!| Project SEKAI COLORFUL STAGE! (Video Game), 逆転裁判 | Gyakuten Saiban | Ace Attorney
20 Oct 2025
Tags
Summary
Humans are afraid of the unknown. The solution to this problem? Welllll uhh... it's obviously to shove the problem in area 51 one and then build a school the size of America's need for healthcare since copies of the problem JUST. WON'T. STOP. SPAWNING. So follow the story of the troublemakers of wing 4-B I guess..
or
I shoved a bunch of random characters in area 51 and built a massive school on top of it because why not at this point. And characters are very ooc.
- Language:
- English
- Words:
- 6,998
- Chapters:
- 6/?
- Hits:
- 53
-
Tags
Summary
OG universe but the siblings are Swapdream instead of normal Dreamtale and Swan (Swapdream Nightmare) has the Bad Sanses with him (Killer, Horror, Dust and Cross) and then they all kiss
(and no, there is no incest..)
-
Tags
Summary
You should be dead. Everyone else in this god forsaken city died as soon as the barrier came down and these creatures, these MONSTERS, invaded Ebott City. You got lucky, or maybe not.
You had the bloodline of a mage. Which meant you could create barriers. In a moment of panic you had created a barrier in your apartment, locking you and your neighbor inside, and the monsters out.
But now the clock was ticking and you had a group of skeletons sniffing around your apartment, telling you that they couldn’t wait to drag you back to their den.
They meant as food…. r-right?
-
Tags
Summary
She had been stripped of her bravery a long time ago. She was so fearful of many things, but a pair of skeletons challenged her to change that. Y/n had to learn to be courageous as well. Otherwise, she would never see Sans again.
-
Tags
Summary
As a person, falling in love wasn't on the top of your priority list. If it happened, it happened, but you weren't all too bitter if it didn't. Maybe whatever social higher power wasn't too happy about that, so it just had to partner you up with some nerdy idiot who flew too close to the sun and ripped a self-shaped hole in the middle of reality itself.
And then you also fell in love with his brother. Too bad that you aren't too up for polygamy.
Inspired by Milk Tea and Souls by Lady_Flame96 and Soulfound by yeo_sin, Title inspired by Baile Involvidable by Bad Bunny
-
Tags
Summary
After the Visitor left behind that angelic abomination who wipe out 90% of humanity, Sam know's that they can't stay in the city. Searching in the former room of Sybil he found the former research of the astronomers and discover a place that was not affected by the visitor, Mt Ebott. He doesn't know why but it seems there is some kind of barrier that keep the place safe during the end of the world.
With only that as his last hope to survive, Sam and his friends go to Mt Ebott but the exalted four find them, taking them one by one until it was only Sam and the childrens.
-
Tags
Summary
So, I heard you like skeletons...
Reader insert prompt fills for @skeletonh0e's sans-centric Kinktober challenge on tumblr
-
Tags
Summary
Sans Multiverse Chatfic + Deltarune + Delta in the Star Sanses because it just kinda makes sense to me.
Also featuring some custom AU stuff on my end.
All AUs belong to their respective owners, including specific interpretations.
- Language:
- English
- Words:
- 976
- Chapters:
- 1/?
- Hits:
- 4
-
Tags
Summary
Working at a bar wasn’t all that bad. Sure, sketchy people would show up, and sure, there have been some fights, but besides that, it wasn’t that hard for her to focus on her job. Of course, the only person who made Muffet’s shift bearable was Fell, who had become a regular.
This is an image roleplay format & podfic loosely inspired by Sooner or Later You're Gonna be Mine by Staringback ( A03).
So if you are a Frans shipper, I'm sorry, but adult Frisk will not be in roleplay. Muffet will be taking her place as Sans' love interest... DunkinDonut.
Please enjoy.
- Language:
- English
- Words:
- 0
- Chapters:
- 3/?
- Hits:
- 452
-
Tags
Summary
Welp. Here we are. I'm doing this trope because I wanted to put my own take on it. There's a lot of skeletons and there's only one you. At least the only other human in the house is only rooting for you.