1 - 20 of 41,807 Works in Sans (Undertale)
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"I'm sure you're wondering what's going on here."
"Not really."
"You are genuinely one of the most pedantic people I have ever met in my existence."
"Well, I don't know what that word means, so therefore I can't be it.".
.Ah, frick, just my luck. Reincarnation as a skeleton with godlike magic capabilities.
This should be fun.
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Two friends, split across the Multiverse.
Two friends, with opposite ROLEs of the Protector and Destroyer.
Both just want to find their friend, for them to be ok.
The Multiverse has bigger plans for them, however...
One friend fights valiantly for what is right.
The other falls into the darkness.
Or: two kids make themselves spawn in the UTMV as Ink and Error, and both are overpowered.
Generally random updates but I try to keep it consistent to once a week.
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A Female Gojo Satoru dies and somehow becomes Sans. Follow along as the strongest causes mayhem through time and space.
Gaster questions his life's choices. Papyrus wonders why his sister is like this. San's is just having the time of her life."Sans! No!"
"sans yes!"
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The Doctor's Descent by Feanyx1
Fandoms: Undertale (Video Game), Doctor Who (2005), Deltarune (Video Game), Doctor Who
15 Jan 2026
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He thought that the radiation would kill him. He thought that his time as the Doctor would come to a sad and brutal end. He was wrong. And that was so much worse.
In his efforts to find himself, and without his companions, he accidentally stumbles onto a monstrous civilization miles below the Earth. With his newfound DETERMINATION and some new allies, he'll come to realize what it truly means to be a friend, and learn how to live his last lives with his head held high.
And make sure that, just this once, everybody lives.
OR
Undertale but the Tenth Doctor replaces Frisk. Fluff, angst, AUs, and timeline shenanigans ensue.
*No knowledge of Undertale or Doctor Who is required, though it is helpful if you've experienced at least one of them.
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Shadows Cut From the Soul by CodePlanTB
Fandoms: Undertale (Video Game), Deltarune (Video Game)
15 Jan 2026
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A few days after the end of the pacifist route, Frisk finds a disturbing entity in Waterfall. They bring their friends to investigate, but they find another world cloaked in darkness. They must try to find the true nature of this entity while working to save the world from eternal dark.
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The Games We Play by FoundUser, Primordial_Rebel_Jester
Fandoms: Deltarune (Video Game), Undertale (Video Game)
15 Jan 2026
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There are infinite opportunities in this world. Infinite opportunities for dreams. Infinite opportunities for hopes. Infinite opportunities for regrets... for loss.
There are some memories you would rather just forget...
The old royal scientist knew that better than anyone.
BRIGHT, BRIGHTER, YET BRIGHTER. SO YOU STILL SHINE ON, EVEN AFTER EVERYTHING YOU ENDURED. EVEN THROUGH THE COLDEST NIGHT.
But a story doesn't have to end the same way.
EXCELLENT. TRULY, EXCELLENT. LET US BEGIN THE CREATION OF OUR NEW FUTURE.
Sometimes... a game can have a secret ending.
(A Deltarune novelization that takes some unexpected turns from canon. Based on some theories, and a little bit of imagination, even the unknown can make itself known.)
(Custom Art and beta'd by Primordial_Rebel_Jester. Story by FoundUser.)
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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)
15 Jan 2026
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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.
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As the Dust settles…(CRK x Dusttale.) by Theendcomesforall6724
Fandoms: Undertale (Video Game), Cookie Run (Video Game)
15 Jan 2026
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“How much would it take for even the worst of people to change? For some, it’s for another to pull off the blinds over their eyes. For others, it’s for someone to beat the soul out of them.
Sans was faced with the former by a human who fell into the underground. Killing everyone there over and over again until Sans decided to fight fire with fire. Doing his own genocide route in order to finally stop the human in their tracks.
But once the human helped him take care of the true evil of all these genocides, they had a mutual agreement to be more…pacifist moving forward. And so, they RESET. But oddly enough, the RESET had Sans sent somewhere more…Sweet. But with fallen heroes trapped inside trees and darkness all around.
But the question remains, Will Sans have enough DETERMINATION to SAVE them and fight through the dark? Or will his FIGHT not be enough after all? But no matter the answer…He’ll make sure to have a FUN time…”
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* There’s a crumpled up letter stuffed at the bottom of a trashcan somewhere in the Ruins…
• • •
* …where someone wrote their thoughts down for a friend to read right before deciding to trash it.
- Language:
- English
- Words:
- 496
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 5
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Frisk has had a long journey, but now he is finally at the end. Befriending every monster in his path, Loading when he died
Unfortunately, that all came to a halt when he got to Sans. A Save went wrong, and now he's trapped in another timeline that was not of his own making.
Will he have the Determination to get back home, before everything he has worked for becomes undone?
Will update every other Thursday!
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Eli is a borrower, basically what's left of humans. Most have been turn into pets for monsters, but the somewhat lucky few like Eli survive by scavenging just enough food from within monsters' homes, just enough to not be noticed. But what happens when Eli makes a wrong move and gets by the monster who owns the house, Sans? Maybe things will not be as bad as they think.
- Language:
- English
- Words:
- 878
- Chapters:
- 1/?
- Hits:
- 5
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The first? The original or the last by Glfrax
Fandoms: 전지적 독자 시점 - 싱숑 | Omniscient Reader - Sing-Shong, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 나 빼고 다 귀환자 - 토이카 | Everyone Else is a Returnee - Toika
15 Jan 2026
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The oldest dream was reading outside his multiverse as he observe he notice a world where he exist. Kim dokja was born with a dreaming quirk but coupn't prove it after the incident he got stuck in a coma as he open his eyes His voice trembeling coma out" is this the start of the circle?".
Or the oldest dream may be from the my hero academia world and seeing other world he encontered his 'original one'
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SansKirk angst 💔 by Fagalor, Funkyyy117
Fandoms: Political RPF, Wednesday (TV 2022), PHIGHTING! (Roblox), Addams Family - All Media Types, The Lorax (2012), Peanuts - Charles M. Schulz (Comics), Homestuck, Pressure (Roblox), Peppa Pig (Cartoon), The Amazing Digital Circus (Web Series), Pokemon - Fandom, 逆転裁判 | Gyakuten Saiban | Ace Attorney
15 Jan 2026
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Charlie Kirk dies and Sans his very gay lover has a breakdown on stage
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One night. One mistake.
That’s all it took for Regina Williams to step into a world she doesn’t belong in, a world ruled by secrets, blood, and debts that never die.
Black, a skeleton monster bound by his own ruthless perspective, never owed anyone anything. Until her.
When fate drags them back into each other’s orbit, their uneasy connection threatens to unravel everything they’ve both fought to protect.
Between trust and betrayal, danger and desire...
one truth remains:
some debts can’t be repaid with money… only with the heart.
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Timeline-Crossed Lovers by Spade_7513
Fandoms: Harry Potter - J. K. Rowling, Echotale AU
15 Jan 2026
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Draco Malfoy fell through a magical anomaly and ended up in some sort of a fractured timeline space. Before him, time stood still. There, he met Cael (humanoid Gaster!Sans), who's been alone for...who knows how long. Constantly watching timelines collapse and fall apart. Together, they share magic, grief, and small quiet moments in this glitchy-esk pocket of spacetime, the rift between worlds. Draco, however, started to feel something he thought he never would: Connection. Though, this rift can't hold them both for long...or can it? Maybe they could make it work out in their favor?
OR
Draco met someone in some weird spacetime rift, they get along, and slowly develop feelings for each other. Despite the face they were never supposed to meet in the first place.
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Gin has died leaving ink alone in the multiverse. Error starts destroying aus and ink has to figure out how to stop him which leads to complications
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The sound of loud ringing woke the human from their rest.
Kris groaned and whined, putting the pillow tight over their ears at the sound of their phone ringing. They had gotten barely any sleep the night before because of what their mom was doing with Sans.
They grumbled and slowly looked up, seeing it was Berdly's number.
Oh. They had forgotten.
Today was the festival, wasn't it?
OR
My fan-made version of Chapter's 5-7 of Deltarune connected to my story 'What if'. You likely won't understand anything unless you've read 'What if', as while I followed chapter's 1-4 fairly closely, there are a lot of differences.
Series
- Part 3 of Deltarune Fanfiction
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What if Dream and Nightmare were eldritch horrors beyond anyone's comprehension by ThePilotBob
Fandoms: Undertale (Video Game)
15 Jan 2026
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The title says it all.
What if Dream and Nightmare were eldritch horrors that would break the mind of anyone who saw their true form.Yes, I am indeed torturing Blue again, sorry, but in all actuality I am not sorry at all UwU
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Imagine if the person who fell to the UNDERGROUND wasn't Frisk? What if it were someone completely different, someone in control of not only their choices, but their powers as well? Meet Grace, a young adult who just happened to be walking through the woods the same day Frisk decided to fall. Grace managed to SAVE Frisk from their usual fate, but only in exchange for hers; Grace falls down into the UNDERGROUND. As she makes friends and walks through the UNDERGROUND, read to see how a different character might have made her decisions on the same path an innocent child took - and how she might ruin it.
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Monsterkind's Hero is a Title Soaked in Blood by gasbag64
Fandoms: Undertale, Undertale Yellow
15 Jan 2026
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Summary
After unintentionally leading Clover to their death and being given a title they despise for it, Martlet, Ceroba and Starlo vow to never let another human face Asgore unless their life is spared and to prevent a second human-monster war from breaking out. However, this is no easy task. They have to keep their plan secret from the Royal Guard and confront their guilt, weaknesses, and self-doubt. Despite everything... can they truly be heroes?
Meanwhile, a flower, opposed to both the Guard and Clover's friends, secretly tries to do his best to make sure the next human faces Asgore with as few hitches as possible in case he can't absorb their SOUL first. He doesn't feel the need to try too much. After all, if his plans fail, he can always reset... right?Series
- Part 3 of Clovers and Sevens
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After watching a human RESET their genocide route ad nauseam, a lone scientist decides to pull in another human to put an end to the tale. At least, hopefully one other human will be determined enough to stop them.
DoubleLight is based on DoubleTale: Rewritten by XWolf26 on Fanfiction.net.