1 - 20 of 61,390 Works in Undertale (Video Game)
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Summary
You were just walking home. A tear in reality split open underneath your feet and suddenly you were falling.
Falling
FallingThen you fell up and onto the tiled floor of a basement lab.
Now all of a sudden you're in another world and surrounded by 6 strange skeletons (plus one's brother).
Being terrified of all things horror and monsters, what are you to do?*Will contain mature themes but no smut*
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Shota Askbox/Prompt Fic (CHECK OUT NEW YEARS EVENT ON CH 33) by Anonymous
Fandoms: RWBY, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Avatar: The Last Airbender, Avatar: Legend of Korra, Fairy Tail, Highschool DxD (Anime), Gakuen Mokushiroku | Highschool of the Dead, ダンジョンに出会いを求めるのは間違っているだろうか | DanMachi | Is It Wrong to Try to Pick Up Girls in a Dungeon? (Anime), Fate/stay night & Related Fandoms, The Owl House (Cartoon), Total Drama (Cartoon), Gravity Falls, Helltaker (Video Game), かぐや様は告らせたい | Kaguya-sama wa Kokurasetai | Kaguya-sama: Love Is War (Anime), Rick and Morty, Original Work, Scott Pilgrim - All Media Types, She-Ra and the Princesses of Power (2018), Deltarune (Video Game), Undertale (Video Game), Valkyrie Drive: Mermaid
31 Dec 2025
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An askbox fic dedicated to girls loving shotas
Just ask me for a smut one shot with a simple list for you to fill out and there you go.
Fandom:
Characters:
Kinks:
(Optional) Positions:
Prompt:
Disclaimer: I may or may not get to your prompt. A list of kinks is in the first chapter and a few things I do not do. If you have a fandom request that is not listed, please ask. Also, I will be doing more fandoms not listed, but due to Ao3 guidelines I am to only have fandoms I have written for tagged. Chapter 1 has more fandoms I am willing to write for. -
Can You Really Call it Kidnapping When they're Skeletons? by SilvermistAnimeLover
Fandoms: Undertale (Video Game)
31 Dec 2025
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When nine skeletons awaken in a strange room with vague instructions to watch Creator-made videos about one another, nobody was quite sure what to expect. Leaving that place as a family had certainly not been the plan.
OR
Nine Sanses watch animatics about one another, though not everyone there will have videos about them.
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Fandom Fuckery by Ashlee_Writes
Fandoms: Minecraft (Video Game), Undertale (Video Game), Bendy and the Ink Machine, Five Nights at Freddy's, Hazbin Hotel (Cartoon), Mouthwashing (Video Game), Red White & Royal Blue (2023), Chicago (2002), Hamilton - Miranda, The Prom (2020), Date Everything! (Sassy Chap Games Video Game), Stardew Valley (Video Game), Marvel, DCU, Fran Bow (Video Game), Little Misfortune (Video Game), Bad Parenting (2OO2STUDIO Video Game), Stray (Video Game), Unravel (Video Games), 逆転裁判 | Gyakuten Saiban | Ace Attorney, The Outsiders - S. E. Hinton, And Then There Were None - Agatha Christie (Novel), Poppy Playtime (Video Game), Subnautica (Video Game), DOORS (Roblox), Inscryption (Video Game), Baldi's Basics (Video Games), Octodad (Video Game), Kindergarten (Video Games 2017 2019), Untitled Goose Game (Video Game), No I'm not a Human (Video Game), That's not my Neighbor (Video Game), Hello Neighbor (Video Games), Friday Night Funkin' (Video Game), Supernatural (TV 2005), Lacey Games (Web Series), An Inspector Calls - Priestley, Scooby Doo Where Are You! (Cartoon), Ghostbusters (1984-1989; 2021)
31 Dec 2025
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Giving you headcanons, fanfictions (character's reading them), and character's you never thought would meet. Yes, there are OCs, but they're doing jobs. Also, feel free to request, add headcanons, or advocate for a fanfiction you want the character's to read.
Series
- Part 1 of Multiple Fandoms
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Life has been a dream ever since you met your soulmate, Sans, two years ago when he came strolling into your floral shop. Your soul-song synchronized the moment your eyes met his eye sockets, and the two of you have been bonded since. Best friends for life, at arm's length. Platonic.
Your peaceful norm turns on its head the day a mysterious machine is recovered from Waterfall. Doubles of Sans and Papyrus begin to appear after they both receive a hearty zap from the contraption. Now the three of you are wrangling all different sorts of skeletons. A few of them are even starting to show interest in you. And why shouldn’t they? You deserve love too, after all.
Maybe they’re the key to teaching you both what you really want.
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Handle With Care by AverageContentProducer
Fandoms: Deltarune (Video Game), Undertale (Video Game)
31 Dec 2025
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Summary
The barrier falls. Monsterkind goes free. Spamton and Tenna finally, at long last, reach the surface.
Everything, everything, everything is different.
(OR: Only by proving himself brave, truthful, and unselfish, can Pinocchio become A Real Boy!)
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Life isn’t fair, case in point, you didn’t expect to be trudging through the snow to the corner store to pick up some much needed, over priced, feminine hygiene products while trying not to bleed all over yourself all because you failed to remember to pick them up with your normal shopping. That’s the thing, no one ever said life was meant to be fair did they?
~*~
Promises were just words, promises of home, safety, love. Only ever worth something if the person kept those words close to their soul. That was something he learned pretty damn quick. Built for love, to be a friend, a companion, tossed into the rings to be a fighter, something he was never meant to be. The only promise he knew he could trust were the few he made to himself, the promise to never fall for the sweet lies of a pretty face again.
~*~
What happens when two souls who honestly need each other, don’t know how to open up and trust? Can love, trust, and home be found when the world has proven that trust is a dangerous thing? Can they get over the hurt that this unfair world has piled on them? Open up to each other and maybe, just maybe find the home they both need?Series
- Part 1 of Shifting Perspectives
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[[The Show Must Goon [[Art Collection]]]] by alexr05
Fandoms: Original Work, Henry Stickmin Series (Video Games), Vocaloid, Tower Defense Simulator (Roblox), Roblox, OMORI (Video Game), Undertale (Video Game), Dick Figures (Web Series)
31 Dec 2025
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NSFW art from late 2023-2025
First chapter is Q&A, rest of chapters are drawings.
(Originally posted on August 27th, 2025, had 181 kudos and 17k hits at the time before my bitchass mom went onto my account to delete my works without my permission, so this is a repost.)
Series
- Part 2 of [[Art Collection]]
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Do Ketsukane dream of Electric Foxes? by eumarthan
Fandoms: Undertale Yellow (Master Sword Video Game)
31 Dec 2025
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Summary
Void
That was all she could see, Endless void. Pain seared all through her body, everything hurts. She wanted to scream, to bite, to flail around anything to ease her pain. Suddenly a hand touches her shoulder and she wakes up.
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Killer was bored again. What does he do?
10:48 am
*kills u cutely* 💖💞🎀 added 8 people to Mentally Ill Skeletons 🗣️🔥🔥💥‼️
Yeah I. I started a chat fic. I am so sorry.
Genuinely have no idea whether this will be continued or not but I have hope at the moment
Nightmare (by Jokublog) - Mamanootmare
Dream (by Jokublog) - 🌟Dream🫶✨
Killer (by Rahafwabas) - *kills u cutely* 💖💞🎀
Horror (by Sour-Apple-Studios) - MAMAIMNOTDOINGDRUGS
Dust (by Ask-Dusttale) - hrngh soup
Cross (by Jael/Jakei) - *comically loud buzzer*
Swap (by the Undertale Community (?)) - The Supreme Swap 💠
Ink (by Comyet) - waitwhatwasmynameag
Error (by LoverOfPiggies/CrayonQueen) - GlitchInTheSystem
Lust (by NSFWShamecave) - Jealous? 🩵
Undertale by Toby Fox! -
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After a battle killer goes wandering while wounded and ends up meeting someone
Series
- Part 2 of Magical girl au! Positivity flash!
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So, I don’t like how little stories there are of Ink having a mental breakdown. So I wrote him having a mental breakdown.
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Ink is laying on the ground. How did here. Why is he here?
He should get up.
He should go to work.
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Strength to Kill the King Alone by Metal_Omegux for GagagigoTheRisen
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
31 Dec 2025
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He’s not strong enough. Clover fought Asgore, but had this depressing realization. However, after a conversation with Flowey, he knew the steps he needed to take. With more allies and power, Clover could win. He could bring Asgore to justice for all of his crimes!
Clover just had to grow stronger.
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You met him once in passing, and maybe got a bit of a crush. Him, the famed Monster scientist, a handsome and charming older gentleman.
Now, the two of you run into each other again at an impromptu New Years party...whatever could happen next?
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Better Get Going Now, No Monsters Out Here by Snide_Afreat27
Fandoms: Undertale (Video Game)
31 Dec 2025
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Monsters have invaded your home: high-ranking royal steppers, dark romantics, and base shittery that has said neighborhood of yours alive with protest.
And you?
Coming back after serving a dime for jamming a tire pressure gauge up your cheating partners nose, are none too happy at who took up residence in your leave.
Especially when the law dictates that societal rejects (their words, not yours), have their possessions tossed into the hands of monsters who make below minimum wage. And there’s not shit you can do about it.
OR
An unconventional menace of a reader who missed the ascension of monsters while serving time becomes hell-bent on enacting revenge on the skeleton who took her apartment, furniture, and car.
(And later thinks him stinking cute).
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Anti-ControlTale by MEDVEDUYM
Fandoms: Undertale (Video Game), Deltarune (Video Game), Undertale Yellow (Master Sword Video Game)
31 Dec 2025
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Summary
"What happens when a mastermind strategist is trapped in the body of a twelve-year-old girl?"
Nick is a genius, a tactician, and a pathological liar. After a chaotic soul fusion with Chara, he finds himself in a body he didn’t choose, living a life he didn’t ask for. While the Dreemurr family sees a child who needs protection, Nick is busy playing a high-stakes game of chess against destiny itself.
He’s not here to be a hero. He’s here to regain control. Whether it’s bluffing his way through scientific debates with W.D. Gaster or struggling with a body that betrays him at every turn, Nick will do whatever it takes to survive.
Anti-ControlTale: A story of identity, 22nd-century tech bluffs, and the brutal reality of being a man stuck in a vessel that isn't his own.
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The strong nuclear force is defined as the strongest of the four fundamental forces of nature. It is the force that binds protons to neutrons inside of an atomic nucleus. On the quantum level, it also binds quarks of similar charge and direction together in order to form protons and neutrons.
The summer after her graduation from undergrad with dual degrees in biotechnology and theoretical physics, the world around Vera Jefferson changed. An entire new race of people poured out of Mt. Ebott, the namesake for her university. The monsters that now populated the militarized zone around the campus and base of the mountain were strange, but kind. Having made quick friends with the sarcastic bartender/owner of the restaurant across the back alley from her apartment, it seemed as though her world had changed for the better.
Once she starts the first semester of her PhD, she realizes just how true that is when she meets some of the other monsters around campus. Life may not be easy, but with the help of the people she went through undergrad with and her new friends from underground, she feels for the first time that she just might make it through.
Series
- Part 1 of Majoring in the Soul
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Summary
An OC x Canon fic from the perspective of a moth monster named Remi :)
- Language:
- English
- Words:
- 1,023
- Chapters:
- 2/?
- Hits:
- 5
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Dementia Attack by c4nn0n_cr4sh
Fandoms: Team Fortress 2, Undertale (Video Game), Five Nights at Freddy's
31 Dec 2025
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Summary
This is basically just if you were to put FNaF, TF2, and Undertale together to make a shitty AU where everything is changed just enough to avoid a lawsuit. Medical Doctor (from Group Location 3), Large Weight (also from Group Location 3), and Sams Underpants (from the hit game Underpants by Tobias Vulpes Vulpes" are pretty explanatory I think, but they're just slightly different enough to where corpo lawyers couldn't touch me if I made this into a game. This is very much a shitpost, I don't expect anyone to actually get invested in this.
- Language:
- English
- Words:
- 587
- Chapters:
- 1/10
- Hits:
- 3