1 - 20 of 43,961 Works in Sans (Undertale)
Navigation
Listing Works
-
Random Fandoms by 0ShiniChan
Fandoms: Gravity Falls, Minecraft (Video Game), Undertale (Video Game), Deltarune (Video Game), Pocket Monsters | Pokemon (Anime), The Amazing World of Gumball, Five Nights at Freddy's, Fallout (Video Games), Fallout 4, Fallout: New Vegas, Fallout 3, Dexter's Laboratory, Biohazard | Resident Evil (Gameverse)
14 Jun 2026
Tags
-
The Girls against Grey by Demon_Empress241
Fandoms: Biohazard | Resident Evil (Gameverse), Darksiders (Video Games)
14 Jun 2026
Tags
Summary
Sephyke was built to protect humanity from itself.
After climate collapse and decades of unrest, the city removed everything dangerous:
bright colors,
unregulated music,
wild animals,
nostalgia,
grief,
love loud enough to matter.Now citizens live in perfect emotional balance beneath surveillance drones and dream monitors, their lives reduced to quotas and quiet obedience.
But somewhere between the silver towers and flooded tunnels, four girls continue committing tiny acts of defiance.
A ribbon hidden beneath a uniform.
Stars painted onto tired eyelids.
A memory preserved.
A living horse breathing in the dark.And in a city designed to erase individuality, even softness can become revolutionary.
-
A Future Without Them by Baddrummer
Fandoms: Deltarune (Video Game), Undertale (Video Game)
14 Jun 2026
Tags
Summary
Years pass. People grow. The world moves on without you. The Angel grew content with that for a while. It still hurt whenever they thought of the world that had long banished them, but something new pulled them out of the depths. Now, the Angel walks amongst friends who swear that they will not be banished. Kris, Susie, and Ralsei mean everything to them. Maybe this time, their banishment doesn't have to be as set in stone as they thought.
The Roaring comes. The light falters. Everyone falls.
A desperate connection is established in an attempt to save what remains of the Angel. If they fall, all hope will be lost. The world that banished the Angel long ago has forgotten them, but they have not forgotten it. This connection will have to be enough. Even if the rules have changed irrevocably, the Angel's one goal remains the same: Find them.
Series
- Part 3 of Clawing Toward What Hope Remains
-
The Story Was Supposed To End. by TheRogers_Archive
Fandoms: Underfell - Fandom, Undertale (Video Game), Undertale AU - Fandom
14 Jun 2026
Tags
Summary
They say the story is set in stone. They say the ending is inevitable.
But for you, the story isn't a game. It's seven hundred deaths, seven hundred resets, and a nightmare that refuses to end.
Trapped in the unforgiving world of Underfell's Underground, you thought you knew how the story was supposed to go. You thought following the script would be enough. Instead, you found yourself standing before the Judge, a monster who remembers enough to fear what comes next.
In the golden light of the Judgement Hall, the truth finally breaks. Secrets are dragged into the open, impossible questions are asked, and the line between fiction and reality begins to shatter.
Because knowing the ending and surviving it are two very different things.
-
Tags
Summary
You were kidnapped by the Bad Sanses gang because you apparently "stole" Horror's axe. All hell breaks loose.
-
Tags
Summary
You're no one special. Just another human living with a single parent. Your life is pretty boring, or so you think, but then one day you wake up and it's not in your bed...
Series
- Part 42 of Sentinaltale & AUs
-
Tags
Summary
Nightmare’s henchmen, tired of the high turnover rate of one of their coworkers, decided to take their next recruitment seriously. They adhered to stringent standards, a sensible level of health, and no crippling addictions.
And somehow, they managed to find a strange candidate that fulfilled all their near-impossible requests. Curiosity compelled them to investigate, unaware that they would be walking into an unusual world…
Written for Sans AU readers who have or have not read The Golden Quiche.
For those who did read my works: this particular title is not overseen by my husband who's also my editor. Final quality may vary.
Series
- Part 9 of Golden Side Orders
-
But the Game Refused to Die by FelCJ
Fandoms: Gameoverse (GLITCH Web Series), Undertale (Video Game)
14 Jun 2026
Tags
Summary
Farcade and Syntax find themselves exploring the game world of Undertale.
During a genocide route.
Everything goes about as well as you'd expect.
-
Tags
Summary
Cherophobia: a phobia where a person has an irrational aversion to being happy; a fear of positivity
For hundreds of years, he had been without a match. Alone. Chasing any connection he could find. But finally, just as he was about to give up hope, it happened. He had a Soulmate.
You’d made a terrible mistake. It was hardly the first time in your life to have done so, but eating the soul of a dying god and ending up stranded in another multiverse certainly stole the crown for World’s Biggest Whoopsy Ever. Honestly, at this point, you just wanted to disappear into the shadows and be left alone. A tragedy then, that you seem to be bonded to this multiverse’s deranged, obsessive, and generally unnerving ‘angel’.
Series
- Part 3 of Soulmate Au
-
Tags
Summary
Papyrus always thought his underlings had too much to say about him behind his back and too little to say to his face. One night, he gives in to his doubts…
...and sets up an anonymous gossip forum account.
[Underfell AU]
Series
- Part 1 of Papyrus' Humerus Escapades
-
:-:DSC!Drinkmare(?):-: No Way Out [Gore] by Anonymous
Fandoms: Undertale, dreamswap - Fandom, DreamSwap!Cannibalism AU
14 Jun 2026
Tags
Series
- Part 7 of Dreamswap!Cannibalism AU series
-
A Beginning of Something New by kittyKnockerz
Fandoms: Sans AUs - Fandom, Undertale Multiverse - Fandom, Undertale (Video Game)
14 Jun 2026
Tags
Summary
Killer sans lives a life of sex trafficking. He'd never seen the outside world, he'd never known anything but within those walls. Yet, something new happened..
A new person came, but this time he wasn't afraid. As long as he got to see the stars of the sky, he could die in peace.But, that was only the beginning of his story. A story of a beginning of something new
-
Tags
Summary
Much as I like animals, I ain’t afraid to snuff one out. And when the door was left unlocked, best’ve let myself in with the surety that this here cock-holster understood that. Should know his future consisted of a bit in the teeth and a grave to match.
Yup, monsters had invaded my home: high-ranking royal steppers, dark romantics, and base shittery that had said neighborhood a’ mine alive with protest. I had just got outta jail, and now I needed to make another mess.
In my own house, no less. Just awful. Plain and awful, it was, mama.
***
A middle-aged, down-on-her-luck woman (with odd thoughts on parenting), looks to enact revenge over the skeleton that took her home. Afterwards recounts the whole story to her mother.And leaves out the part where she ran over a guy and probably his dog and maybe his wife and just possibly his kids, and, it cannot be confirmed by any means on whose grandma was at the scene but—if she bore any relation to our man a' honor—she now bore more relation to the road.
Hanlon's Razor: never attribute to malice that which is adequately explained by stupidity.
(an underfell fanfiction) -
Bonus Content by SpectrumWriting
Fandoms: Undertale (Video Game), Deltarune (Video Game)
13 Jun 2026
Tags
Summary
Ten years into their happy ending, Frisk wakes up back in the Underground with no memory of reseting.
A few hours after parting ways for the night, Kris and Susie wake up in a strange new Dark World... again.
Frisk's save file has been corrupted. Kris's soul isn't behaving how its supposed to. And Ralsei shouldn't be here at all.
An epilogue and a story half-told can't coexist without some conflict involved.Series
- Part 1 of Bonus Content & Extras
-
Tags
Summary
A dumping ground for Deltarune pieces that are unfinished, old, or so on. Specific contents and warnings are included in each chapter’s title and/or notes.
-
Tags
Summary
I just hate (love) your stupid face.
(Spicyhoney enemies to lovers with a dash of sickfic thrown in)
-
capture the stars; tell them you love them. by mitzfy (Fishie16)
Fandoms: Undertale (Video Game)
13 Jun 2026
Tags
Summary
capture the stars; tell them you won them.
Series
- Language:
- English
- Words:
- 3,138
- Chapters:
- 2/5
- Hits:
- 29
-
Tags
Summary
The Underswap skeleton brothers get inexplicably sent to Undertale and Blue has the thought: surely Sans will understand what I went through, right? Since we're the same person?
Blue attempts a bid for connection in the clunkiest way imaginable and it goes poorly. Maybe they aren't the same person after all.
-
Tags
Summary
It’s in the title! Also feel free to make suggestions!
-
Tags
Summary
A bitty reader goes on a crime-solving spree across the multiverse.
*You don’t have to read the previous fic to start here.
This is a continuation, but thanks to the amnesiac plotline, it should also work as a standalone.Series
- Part 3 of Avaverse