1 - 20 of 42,371 Works in Sans (Undertale)
Navigation
Listing Works
-
Tags
Summary
"GO OUT THERE AND GIVE ME A SHOW-STOPPING PERFORMANCE!"
Taking place in the future, a 16 year old boy named Frisk falls into the Underground, the kingdom of monsters. It's a magical and exciting land that he can't wait to explore! And everyone seems so kind...
Like a combination of Storyshift and Underfell.
-
In This World of Infinite Choices by Lireyy
Fandoms: Multi-Fandom, Doki Doki Literature Club! (Visual Novel), Five Nights at Freddy's, Undertale (Video Game), Little Misfortune (Video Game), Sally Face (Video Games), Kindergarten (Video Games 2017 2019), Tattletail (Video Game), Night In The Woods (Video Game), Cult of the Lamb (Video Game), Fran Bow (Video Game), Baldi's Basics (Video Games), Spooky's Jump Scare Mansion, Celeste (Video Game), Hollow Knight (Video Games), Mr. Hopp's Playhouse (Video Games)
27 Feb 2026
Tags
Summary
Monika is tired - oh so very tired. It's been what feels like eternity stuck in the post-deletion void, and despite herself she tried to make an escape with her friends (or, what's left of them). In her desperation and loneliness, she allows herself to be used by a certain piece of malware, who now threatens to subsume and corrupt every game he can get his hands on. Now the young poet must venture through numerous worlds to find some way to stop him, and, with the help of everyone's favorite bone-ified comedian, might just grow a little along the way.
TL;DR, it's Indie Cross meets Learning with Pibby, and braincells have no place here.
-
Shattering the Prophecy by Nate18thegreat
Fandoms: Deltarune (Video Game), Undertale (Video Game)
27 Feb 2026
Tags
Summary
Kris and Susie slowly fall in love while trying to defeat the knight and the prophecy
-
Tags
Summary
29 days of short stories based on the Febuwhump 2026 prompts, written every day, on the day. Chapter Index inside with Prompts, Summaries, Major Characters & Warnings for each day
DAY 27: "Can you stay?"
Toriel
She asks it over and over and over again. But no one ever listens. -
to know Servitude is to dampen the blow by Dream0Cream for dreammarejam
Fandoms: Undertale (Video Game)
27 Feb 2026
Tags
Summary
"Your majesty," he speaks, and it's soft and tired sounding.
"Cross. Your visit is spontaneous," Shattered responds, "but not unpleasant. It has certainly been a while since we last talked. If you'd fancy, I could-"
"Apologies, but there's no need." The knight spoke, "I have come to discuss another matter with you."
Intrigued, Shattered folded his hands over his mouth, raising a brow at the man.
"Alright. For my highest ranking knight, I'm all ears," Shattered put his hands back down onto the table.
Series
- Part 1 of Reborn as Aristocrats
- Language:
- English
- Words:
- 1,285
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 18
-
Tags
Summary
“Sorry.” Kris spoke, automatically.
Asgore, ever kind, doesn’t care at all. “It is no matter. Did I remind you of your father?”
Kris nodded, turning back to the flowers, and patting the ground in a silent invitation, “You sound like him. It caught me off guard.”
Series
- Part 2 of Deltarune
-
I am a Player, and there are worlds to explore! by TrueGuardian32
Fandoms: Undertale (Video Game)
27 Feb 2026
Tags
Summary
Undertale Player ends up exploring through Undertale AU's
-
Tags
Summary
Red wakes up in an AU that's not his own. After being taken in by Sans, his adventure begins. Drama, violence, silly insults, actual serious moments, romance, and more!
I don't know what tags to use, so tag suggestions are welcome! -
I am not the Sunshine, I am not the Moon at Night. by Crystal_Radiant_Spirit
Fandoms: Undertale (Video Game)
27 Feb 2026
Tags
Summary
You wake up as one of the Multiverse's -necessary- banes of existence. You know you were human, had a life before this, but waking up as the King of Negativity himself wasn't an easy pill to swallow.
Unfortunately for you, however.
He wasn't gone.
====
Or, the Author decides to turn this into an actual fic, or at least tries to, while their UTMV interest is still alive.
-
Tags
Summary
In which your teacher decides to assign a social experiment project and lets you do whatever you want as long as you dontc harm anyone. You decide a Confession booth would be nice and see how many people and Monsters add confessions into the jar, whether they be sad, happy, crude, or awkward, you would happily accept them all.
So, you happily set up the booth with a few sharpies, notecards, a jar, sign, camera, and the not, 'Leave a Confession. You came back after your class and low and behold your confession booth was a success.
What you couldn't expect was that later that night while reading and reviewing the footage of the day you would catch a specifical skeleton acquaintance leaving a confession that would whole heartedly screw your night up. And get his family involved because who doesn't like having a gaggle of skeletons breathing down their neck.
-
Tags
Summary
Riot hates the humans. They're racist, bigoted, idiots. The monsters have tried being friendly, but the humans didn't seem to care. Something needs to be done to change things. Riot decides to be that change. Since the humans want to call him a demon, then that's what he'll be.
Frisk is sad that their friend has decided to forgo peace. They make a stand. It's not enough. Not when they aren't even really DETERMINED to stop him.
The humans thought they could get away with treating the monsters terribly. They were mistaken.
Series
- Part 6 of INFLUENCE
-
Tags
Summary
The arrival of monsters brought turmoil, but also magic. After their settlement, the mythical montain witnessed fast urbanisation.
Downtown, recreational area, shopping mall, company cluster, rose one by one.
Skyscrapers grew as if concrete forest on the barren montain, inside which the people kept the city alive.
Modernisation made it hard to believe that this was the mythical M.T. Ebott.
And you, somehow got an intern job in this city.
Would you like this city?Series
- Part 8 of Weight of This Sad Time We Must Obey
-
Tags
Summary
Trading her freedom away for the safety of another, this book loving woman finds herself in a strange castle, guarded by the castle’s inhabitants. Unbeknownst to her, these four have another fate in mind for her… they’d agreed to her deal in hopes that she could break their master’s "curse".
With a heart as firmly guarded as their realm, the dark beast that reigns over the castle is resigned to a future alone and unloved. With a job as nasty as his self image, there’s no way this kind stranger could ever care to look upon him… right? Can a caring hand light a fire in this realm of permanent midnight?
A tale as old as time, told in a new way.
-
Tags
Summary
Psycho has another episode. He hates it.
Hunter doesn't like it. He wishes it didn't happen.
Carnage doesn't either. He'll make things better, he swears.
Series
- Part 5 of INFLUENCE
-
Under and Over and Over and Under by Tr41n1ng_Wh33ls
Fandoms: In Stars And Time (Video Game), Undertale (Video Game)
27 Feb 2026
Tags
Summary
Having been trapped for a few-too-many loops, Siffrin started to feel like nothing was going to change in their never ending play. How were they supposed to predict that the universe would put something so large to block their path to freedom? Literally?
'Something' the size of a mountain.
Literally.
Most would argue that the only way to go once you've hit rock bottom is up, but Siffrin would argue that you can always dig down. Underground, even.
----
An In Stars and Time and Undertale crossover!
-
Same You, Different Font by radskull69
Fandoms: Undertale (Video Game), Deltarune (Video Game)
27 Feb 2026
Tags
Summary
Ah yes. The classic ‘’Heather’ convinces the skeletons you’re an evil human so now it’s a EVIL reverse harem’. Right?
Oh? But what’s this? A TWIST?
Sans couldn’t live with himself after what happened to you, going near insane after you’re gone. So behind the others back he uses the machine to undo what he did, except it didn’t. He can still feel his sins crawling on his back.
Oh well, it’ll all be worth it once he has you back in his cold hands again. Screw the other skeletons.
-
Tags
Summary
A child with nowhere to go escapes the Underground at great effort, greater cost, and several missteps. Wandering the Surface, alone but for the undead voice in their head, they determine that the ending they have reached is not the one they want, and set out to find a better one. Rather than trust the advice of Flowey, they instead place their faith in the king’s dying words and seek the truth on the Surface. Somewhere in the world, there has to be a way to free monsterkind, and they’ll find it or die trying— And dying hasn’t stopped them yet.
-
Temporada 1: Cuando la hierba se tiñó de negro by IthzLuramine
Fandoms: Undertale (Video Game)
27 Feb 2026
Tags
Summary
Error no teme a las personas.
No teme a las caras.
No teme a las voces.
Teme al contacto.No al dolor,
al contacto.
A la invasión del espacio propio.
Al toque que llega sin aviso.
A la presión que no pidió y no controla.
El Anti-Void no lo abrazó.
Lo vació.
Silencio absoluto.
Distancia infinita.
Nada tocando nada.
Allí no existen manos.
No existen cuerpos.
No existe cercanía.
Por eso el tacto es interferencia.
Es glitch en la señal.
Es amenaza directa al sistema....
Nightmare no inicia contacto.
No por respeto.
No por cuidado.
Por cálculo.
Invadir genera resistencia.
Resistencia rompe utilidad.
Y Nightmare no rompe herramientas útiles.
Observa.
Aprende.
Espera....
Dos criaturas rotas no se reconocen por lo que son.
Se reconocen por lo que pueden tolerar sin destruir al otro.
Y todavía no saben
que van a tolerarse
mucho más
de lo que era seguro.Series
- Part 1 of Donde la oscuridad toca
-
Tags
Summary
After some unfortunate event, Nightmare realized he needed the help of no other than his twin...
He really couldn't build this desk alone.
-
Tags
Summary
There was a rumour that the feared Mafia boss, Nightmare, has a loving wife.
There was no way that was true.
Right?
Or, Nootmare has a mafia and apparently, a wife. And of course, people find out in the worst way possible.