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Snowdin Adventures with the Skeletwins by Just_AliAnne261
Fandoms: Undertale (Video Game)
16 Dec 2025
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Summary
"You want to know what to do here in Snowdin? Grillby's has food, and the library has information... If you're tired, you can take a nap at the inn. It's right next door - my sister owns it.
"And if you're bored, you can sit outside and watch those wacky skeletons do their thing. There's two of them... Brothers, I think. They just showed up one day and... asserted themselves. The town has gotten a lot more interesting since then."
The daily lives of wacky skeleton brothers Sans and Papyrus. Watch and read as they get into all sorts of wacky adventures, cause mayhem, and learn life lessons along the way!
Series
- Part 1 of Skeletwins
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Summary
The Underground is no place for children.
Toriel rules with cruelty and caprice, Asgore kills in the name of mercy, and Sans and Papyrus enforce the Queen’s will with bloodied hands. Every human who has fallen before has been slaughtered.
But when a silent, nonverbal child falls into this world, something shifts. Spared by Toriel on a whim, caught between Sans’s suffocating loyalty and Papyrus’s cold protection, they must learn to survive without words in a kingdom built on violence.
This is not a story of heroes or redemption. It is a story of survival, miscommunication, and the fragile bonds that grow in the darkest places. -
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Summary
Papyrus hadn't been worried! ...Well. Maybe he had been, just a bit.
It'd been a while since anyone had heard from the human, so he called to check on them. But when a conversation revealed just how young they were, he realized things had to change. They were all on their own down here. And... They had nowhere to go.
Well! If there was no one else to take care of the baby bones, Papyrus would just have to do it himself!
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Sans was trying to get through life and ignore the apathy that had settled over him for Papyrus’s sake. It was just so hard to care about anything when he knew none of it mattered. But when Papyrus had him bring the anomaly home like a lost puppy, things stopped adding up.
How could such a sweet kid be responsible for the relentless time loops?
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Frisk was used to being on their own, and they were pretty good at taking care of themself. But—Well. ...Dying hurt. They just wanted to get back to the surface! With Undyne in the way, they were hopeless.
So when a phone call from Papyrus somehow ended with an offer for them to crash at his house, Frisk could only be relieved for the break.
They could afford to rest for a while, right?
Series
- Part 4 of Finding Home
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Summary
Cassidy always found herself entranced by the idea of her soulmate. Fantasized about just sitting with whoever they were in cozy company, especially after finding herself homeless in Ebbot City. Not even the emergence of monsters could hurt her hopes to one day find them and just have someone be there for her and her returning the favor.
When less than ideal circumstances do arise in which she meets him though, she can't bring herself to find him again after parting.
Why would she when the first time meeting her soulmate results in a death threat?
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Frisk hadn't exactly intended to fall, and certainly not the way that they did. They weren't exactly opposed to dissapearing, as they'd heard could happen on the mountain, but now that they knew where the kids all went they felt a little overwelmed, and alone. Maybe it was a mistake to climb mount Ebott. But then they meet people, monsters, nice ones that care more about them than the people on the surface. Maybe dissapearing was better than they thought.
I just wanted to have some fun and rewrite the events of undertale with more emphasis on Frisk and what led them to the mountain in the first place. I'm just trying to have some fun writing. Also I make Frisk non-binary in this.
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Summary
"They’re sitting in a bed of golden flowers somewhere far beneath the earth, and, as far as they can tell, for better or for worse, they’re decidedly still alive."
_ _ _ _ _
Frisk climbs a mountain and inadvertently awakens an ancient terror sleeping beneath the flowerbed they land on when they fall. If by "ancient terror" one assumes the less-popular definition of "annoying narrator-ghost princet of monsterkind who is now, unfortunately, permanently stuck in their head."
Chara doesn't want to be awake. They especially don't want to be helpless in the back of a bloodthirsty human's head, watching them ruin the only home they've ever known with no power other than their voice to fight back with. Luckily for them, that's not what's happening at all. Unluckily for them, they may have to re-evaluate a few things about their worldview. Which, for someone as set in their ways as them, is not an easy thing to do.
(Then there's the matter of the weird flower, Frisk's unusual powers, and the Longest of Long Days the underground has ever seen.)Chara & Frisk no player AU true pacifist. Completed!
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- Part 2 of FUSEVERSE
- Part 1 of aubades and nocturnes
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A Jaded Emerald by KTamao205
Fandoms: Harry Potter - J. K. Rowling, Undertale (Video Game)
06 Nov 2025
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Summary
Abandoned on Mt. Ebott at the tender age of five, young Harry's unsurprisingly died, but Death's always had a weird relationship with his variant... Meanwhile, before Flowey's revival as souless talking flower, Sans makes a discovery under the mound of snow, Papyrus has always wanted to be a big brother anyways.
*Edited Summary (29/09/2025)
Series
- Part 1 of MultiTaleVerse
- Part 1 of Arcalith
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Summary
After Frisk manages to bring W.D Gaster to the Surface, he, Sans and Papyrus are able to continue living as a family.
However, W.D Gaster begins to realise just what his children endured during his 17 year disappearance.Content Warning: Discussion about past trauma, child abuse, underage prostitution, aphobia, coersion, child abandonment, homelessness and child sexual abuse.
Series
- Part 5 of random angst
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Slay (SAVE) the Princess by CrossoverAU
Fandoms: Undertale (Video Game), Slay the Princess (Visual Novel)
01 Nov 2025
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Summary
You are in a basement in a cabin.
That cabin is in the woods.
In the woods, on his way, is a skeleton
He is coming to kill you.
Will you let him?
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Summary
Mettaton, a renowned robotic entertainer who works evenings at a nightclub, is no stranger to the art of flirting. It was part of his job, to charm, to cheer. But when an old friend begins to stop in at the nightclub, things get interesting when she brings a friend. One who immediately caught Mettaton’s eye. Now he just had to charm the fellow. Easier said than done, when the newcomer is the sweetest, most oblivious skeleton Mettaton has ever met. Seems he has his work cut out for him…
Series
- Part 1 of O&O Universe Fics 🧡💖
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Summary
While walking home, you get followed by a group of cat-callers. Panicking, you slip into the nearest gas station and call the first number you can think of, your overly intimidating neighbor and tentative friend, Black. His brother picks up instead.
Series
- Part 3 of Fluff Fics (Random Word Prompt)
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Summary
My version of Flowerfell. Frisk, Chara, and Flowey are the main focus because I think this friendship has a (skele) ton of potential that's sometimes overlooked.
I will not be shipping Frisk, Chara, or Flowey with anybody, including each other. In this story, Frisk is seven, Chara is thirteen, and Asriel/Flowey is twelve. I will include a few scenes of Sans x Grillby, and I may include Papyrus x Mettaton, but I'm not sure.
There will be angst, and a closer look at how Frisk's health would be affected by buttercups growing out of their skin. If you don't know what that would entail, please do research before reading. Saying that it isn't pretty would be an understatement.
There will be fluff and fun and shenanigans, it isn't JUST angst.
Edit: I decided to add in an original character. Boom. -
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Summary
This is a undertale au made by 💖ME~💖! It’s called Tiredtale. I was inspired to make this after finding out about a dead au called FlowerFell that I’m actually pretty mad about not being able to read it. Fuck you, you damn Frans shippers that caused that amazing au to go up in flames. Anyway, this is a au where Sans remembers each and every reset in vivid detail. He slowly starts to lose his mind each reset after another. He becomes heavily depressed and develops an extreme case of insomnia from the constant nightmares he has. Pap and other characters close to Sans notice and become extremely worried for the skeleton. The story takes place after the 999th reset when Sans has long gave up on counting how many there have been and just isn’t the same anymore. He is secretive, tired…oh so VERY tired, jumpy, always on edge. He’s closed off more than ever and rarely comes out of his room, let alone talks to is friends and his little brother….
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Between Flesh and Bones|an Oc x Canon fic by EmilytheUTfan
Fandoms: Undertale (Video Game)
29 Sep 2025
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Summary
Long ago, two races ruled over Earth: Humans and Monsters. One day war broke out between the two races, but you already knew that story, didn't you ...?
2 years have passed since Monsters were freed from the UNDERGROUND and both races have been living in peace once again ... well not completely, some humans believe that thing's would be better off if monsters weren't freed from the surface. They want to stop at nothing to make sure Humans and Monsters never live in peace.
Series
- Part 2 of LazyAngel fics(Sans x My UT OC Emily)
- Language:
- English
- Words:
- 1,051
- Chapters:
- 1/?
- Hits:
- 24
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Summary
Mettaton is ecstatic and happy for Sans and Grillby’s family and cannot wait for the wedding. But what happens when he discovers something’s off and goes to Alphys for a system checkup?
Series
- Part 3 of Undertale Life
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Summary
Aria finds out that her boyfriend had been cheating on her. She runs away ending up on the mountain and sees a small child nearing their way over the edge of the abyss. She quickly tries to stop them only to fall and the two end up in the Underground.
A Papyrus story.
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Papyrus is mourning, though he knows his lover is not dead. Only missing.
He’s only missing them to the point of wanting to rip his soul out.
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You are not a person.
But perhaps a certain skeleton can make you one.
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Or, reader is a shapeshifter that feeds off of love who hoodwinks Papyrus into thinking they’re his child. Does it count as found family if you stalk them first?
Series
- Part 6 of How To Be A Human Being
- Part 6 of I/Me/Myself
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Adventures of Papyrus: Interdimensional Social Worker by Irongor
Fandoms: Undertale (Video Game), Percy Jackson and the Olympians & Related Fandoms - All Media Types
16 Sep 2025
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Summary
Disbelief Papyrus fails to save the human from themselves in the end, but now that he's been blessed by a wizard with a social worker certification, he won't fail anymore children, he will travel across the multiverse and save as many children as he can.
This is going to be a multi-fandom work where Papyrus travels around saving kids from different bad situations from their not good situations, this is a crack fic, but it will also deal with some heavy topics, I am not attempting to make light of any of these topics, and if this story seems like it's not your cup of tea, feel free to not read. Make sure to take care of your heart and brain.
Trigger warnings for what is happening in chapters will be in the start notes for chapters because some of the kids in fandom are in not good situations that can be triggering for some people, so I will be upfront about what is in a certain chapter and will do my best to make sure it can be skipped over easily. I will also be adding any trigger warnings to the tags when I write them.
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Calcination Syndrome by Fells_Kitten (SquirrleyCow)
Fandoms: Undertale (Video Game), Underfell - Fandom
06 Sep 2025
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Summary
Calcination: The process of heating a substance just below melting point to induce change in physical and chemical properties, to remove impurities and ensure specific reactions and outcomes...
Grillby has a perfectly normal attraction to his long-time friend and nightly regular at his bar, Sans. He's been dying for a chance to act on that attraction but keeps backing-out before he can follow-through. After patiently biding his time for the perfect moment he finally makes his move.
Sans is contently unattached to anyone romantically. He has his friends, he has his brother, he has the bar and Grillby's usually quiet but comforting company. What more could he need? He hasn't considered a life outside of living with his brother and the occasional random hook-up to blow off steam. Sure, he's noticed Grillby, he's not blind after all. But from the outside looking in, it's always felt like Grillby was just as happy being single as Sans is. Being a single dad, even with a grown kid, probably changes your standards for a partner anyway. Well, until Grillby kidnaps him that is.
Waking up chained to a bed kind of changes your perception of a guy.
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Through the Looking Glasses by FandomWorld9728
Fandoms: Undertale (Video Game), Underfell - Fandom, Underswap - Fandom
30 Aug 2025
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Summary
Waking up from a nightmare, (Y/n) had expected to wake up in bed next to at least one of her boyfriends. Not thrown into a different version of her world!
Underfell Arc: Chapters 1 - ?
Underswap Arc:
Swapfell Arc:
Underlust Arc:
Horrortale Arc:
Ink & Error Arc:
Fellswap Gold Arc:Series
- Part 4 of Sans/Reader Fics
- Part 2 of Papyrus/Reader Fics
- Part 5 of Undertales Across the Multiverse
- Part 7 of Reader Inserts