1 - 20 of 1,683 Works in Muffet (Undertale)
Navigation
Listing Works
-
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
-
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
Frisk was hunting a wolf, their last prey, their last trophy to earn the right to reproduce, when they accidentally fell into the ruins.
Although their mission hasn't changed.
This is an AU where humans are savages (At best) who live in tribes and have strict and brutal traditions to prevent them from getting carried away by their savagery and sadism (in this AU the monsters were not locked up but saved by a group of sane humans who used the power of their souls to seal the Underground and save them unfortunately there was a small "crack" in this magic barrier right on Mount Ebott)
Series
- Part 1 of Anonymous Chastity/Castration
-
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
As you walked you failed to hear the screams of terror of a bus going over 100 miles per hour and the sounds of it starting to bust down- it speeds near the sidewalk—the people in it shriek. Their blood curling screams didn’t occur to you, your headphone quality being way too good. Your shoulders relaxed as you stretched your limbs; very much unaware of the danger and pain that would very much make your life way more miserable. You should move out the way. But- likewise, you are unaware. Of death flickering and time excited to cut your strings.
The bus is almost out of energy- and has been stopped.
Or so people thought.
It began to tilt- right where you were very much slowly walking. Andddddddddd—
It didn’t crush you to death.
-
Tags
Summary
Its been 6 years since monsters have been living on the surface,
sans thought he could let go of what happened to him underground but his hatred for humans and itch for killing drives him to murder in secret.
but after you came crashing into his life everything changed, how can he keep his true self from you? -
Tags
Summary
You are on a quest to die to every boss in the underground, just to see what happens.
Series
- Part 1 of R.I.P.
-
Tags
Summary
Monsters have appeared from a mountain, in your town! Interested in this new development you head home with high hopes. Sadly it seems humans will be humans, and for some reason you keep getting caught in the cross fire. Luckily you've made some new friends to help you out along the way!
You were just about to head into the nearby town when your phone went off, it was a text. From Otto of all people. A video of him, and what looked like monsters walking behind him. "You should come home (Y/n), things just got interesting."
Reader is female (sorry) there will be smut at some point, don't know when though...
Series
- Part 1 of Blood N Bones Stuff
-
The Tales of Kháos: A Reapertale Re-Take by Palito266
Fandoms: Undertale (Video Game), UTMV
19 Oct 2025
Tags
Summary
A sequel to the previous three stories: "Tales of Infinity," "Tales of Pragmatism and Fabulism," and "Zero Tales."
Follow the gods: a brand new species that had been given consciousness by a mysterious form and a body as well. Explore how these deities accustom not only to their existence but also to the world around them that they must protect.Reapertale was created and is owned by Renrink. Inktale was created and is owned by Comyet. Dreamtale was created and is owned by Jokublogs. Errortale and Fresh Sans were created and are owned by Crayon Queen.
(English is not my main language, so there may be some grammar issues.)
Series
- Part 4 of Markings of the Cosmos
-
UDY on the Surface by CommanderBullet
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Deltarune (Video Game)
19 Oct 2025
Tags
Summary
It's been a few years since Monsters returned to the Surface and lots of things have changed... Accompany your favorite characters from Undertale, Undertale Yellow and Deltarune as they try to manage their everyday responsibilities and go through a few wacky adventures while at it in this slice-of-life crossover AU.
-
Tags
Summary
It was all a struggle as Nightmare formed a team from the ground up. For 500+ years, the voice in his head pestered him, nagging him to continue this path. He begins to question all he was taught once he meets someone new and finds someone familiar.
-
Tags
Summary
Two souls in the Underground, intertwined by fate and by a prophecy that keeps them apart.
Heads up before you read:
In this fic, Chara is alive and far from a good person. They’re not a mindless killer, but a narcissistic kid. This is not a fluffy Charisk story. Chara and Frisk’s relationship is deeply toxic.Please look at the tags before you continue.
I've been experimenting with third person for a while now, and I've grown to like it a lot more than first person. For those who came from my other fic, which I promised a sequel for, I’ll try my best, but I’m not sure how that will go now that I’ve fallen in love with third person and started a new long fic. Please don’t be angry I will try to finish my other fic as well.
-
Life On the Surface by RetroWrites
Fandoms: Undertale (Video Game), Deltarune (Video Game)
17 Oct 2025
Tags
Summary
Frisk has freed the monsters.
Now all they need to do is to live on the surface.
Campy story with plot and sad stuff on top of regular Undertale shenanigans.
-
OVERWRITE Aftermath - Chapter 1: The First Domino by OVERWRITEDimp
Fandoms: Sonic the Hedgehog - All Media Types, Undertale (Video Game), Dragon Ball, Five Nights at Freddy's
16 Oct 2025
Tags
Summary
We all like crossovers, right? They couldn't possibly get out of control...right?
After a chain of events lead to Sonic and a few others getting assimilated into the world of XTale, many changes occur as the rules of the Omniverse change to keep itself stable, which sets off a chain reaction that will change reality forever. -
The Doctor's Descent by Feanyx1
Fandoms: Undertale (Video Game), Doctor Who (2005), Deltarune (Video Game), Doctor Who
15 Oct 2025
Tags
Summary
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.
-
Unexpected Hero by LemonCake64
Fandoms: Undertale (Video Game), The Legend of Zelda & Related Fandoms, The Legend of Zelda: Twilight Princess, Deltarune (Video Game), The Legend of Zelda: Ocarina of Time
15 Oct 2025
Tags
Summary
“Not so fun being stuck in some loop right? Trying to fight to protect what ya got, not getting a choice in it. If I had the choice I wouldn't remember either.” The words oddly felt comforting. Link let out a slow breath, closing his eyes for a brief moment.
He didn't feel alone for the first time in a long time.
And that?
That was terrifying.
“To be honest, I kinda gave up a while ago. Just sat back and let the chaos go on, felt like nothing I did mattered anymore. Everything would just be reset anyways. Stopped caring what happened, that was until you showed up.” The skeleton’s eyes bore back into the Hylian.
-
Half-Tale: The Fallen by HolmesJaw
Fandoms: Undertale (Video Game), Half-Life (Video Games)
15 Oct 2025
Tags
Summary
Corporal Adrian Shephard, a US Marine Corps soldier assigned to the HECU division, was sent off to Black Mesa for 'cleanup duty'. Despite all he went through, he somehow manages to escape the hellish, alien-ridden facility against any and all odds and, after being 'detained' by the ever elusive G-Man, is then assigned a new mission many years later... to the UNDERGROUND!
Accompanied by Chara Dreemurr, the first fallen human turned apparition, the two journey through the unprecedentedly large underground area for one very specific goal... but what exactly was it? And is that all there is to it?
In... time, all will be revealed.
-
Tags
Summary
Once monsters had been released from the underground, the stage was set for a new revelation in the world of science. many people saw against integrating monsters into human society, but you encouraged it. with the discovery of magic and how it can interact with modern science. Now with the new applicants, your discovery will only increase and maybe your relationships with monsters, too. stay tuned for new journeys with your monster friends and learning things that have...multiverse impacts.
-
The God Of Destruction In Undertale | DBS x Undertale | Crossover by 38q12
Fandoms: Undertale (Video Game), Dragon Ball
13 Oct 2025
Tags
Summary
Lord Beerus, the God Of Destruction, finds himself in the Underground with a small child. With no way to leave, he travels the Underground with the strange child he met, meeting new beings known as monsters. Will he do what he does best and destroy everything in his path to get out? Or will he find some new friends on his journey?
- Language:
- English
- Words:
- 10,536
- Chapters:
- 1/1
- Hits:
- 27
-
Tags
Summary
You and Frisk decide to take a day off to have a picnic in Mt. Ebott, something to take your mind off work while waiting for winter.
So why, why are you now on the police office?
Why are you putting missing posters all around the city?
Why did you take them there? Where are they? Why did your worst nightmare become something real?Where are they?
-----------------------------
I don't have a summary i just pulled this out of my ass but if you like a slow burn with a Lot of Words and Feelings™ and Sans pleaseee give it a try.