1 - 20 of 4,285 Works in Alternate Universe - Underfell (Undertale)
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What if you're finally free? On the surface with all your dear friends? But then an incident...
What if a reset happens?
I'm back with another what if for my first fic (a new life with a bunch of monsters (and annoying humans))
God i need to stop😭- Language:
- English
- Words:
- 3,789
- Chapters:
- 2/?
- Hits:
- 12
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Summary
The Puzzle Honey Bandits are at it again!
Their reign of terror must end!
We all know they are monsters who only burgle other monsters.
What fiends they must be?
Who would dare?
They need to be brought down, by any means!
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In a reality where existence is a jigsaw puzzle of shattered worlds, a certain doctor has survived the collapse of his own universe and now embarks on a mission to build something new. Join one W.D Gaster utilizing the Observer, a creation of his own design, and navigate a realm where perfection is a mirage and every piece of a broken world holds the key to a bold new beginning.
Your choices can influence what will come to pass, and what the end result will be.
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Working as a waitress has it’s downsides, working as a waitress in a place that makes you wear a skimpy outfit around drunk customers is even worse. Though honestly, you are more than used to it and not about to take that sort of behavior. What you didn’t expect was for the perpetrator of the latest assault on your assets to be a rather adorable short skeleton monster.
Blue hated how everyone at the house kept treating him like he was some sort of little kid, especially Edge and Red. The frustration building till he does something he never thought he would ever do in a million years, what he didn’t expect was for a pretty waitress to see right through him and reach out to help.
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oh but how inviting is the void.
Sans doesnt know how this happened, but the Resets arent making him feel awake again.
He needs to visit floor 81 again.(underfell au)
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These Skeletons Need an Emotional Support Human by Crooked4913
Fandoms: Undertale (Video Game)
08 Feb 2025
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You were a human who had made mistakes in your life, but then again who hadn't. Your mistakes however led to you barely scraping by, pinching every penny to afford food and rent.
Until a chance encounter with a skeleton in a grocery store gives you the opportunity of a lifetime. He says his roommates fight over everything; Cooking, cleaning, shopping, yardwork, ect.
So, what if they hired you to do all those things? That would stop all the fighting, right?
You can't turn it down for the kind of money that there offering to pay you.
besides, it isn't like monsters are actually dangerous right? -
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Magic.
It's such a funny, fickle, temperamental thing, isn't it?
Will you truly ever be able to heal?
Or will the VOID in your soul claim you?
(Also known as: help I've fallen back into the Undertale fandom and I wanna write. Is it perfect? Absolutely not. Buuut as long as we have fun together hehehehehe)
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One Shots Mixtos (Sanscest / Sansby / Sanscest + Grillby / +18) by jack12frost
Fandoms: Undertale (Video Game)
07 Feb 2025
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One shots diversos de estás relaciones
Tenemos:Dreammare
Kustrad
Dustberry
Horrorlust
Crosskiller
Sansby
Y más
Series
- Part 3 of Sansby Multiverse
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It takes 10 Skeletons, not a village by Donewith_life
Fandoms: Undertale (Video Game), Underfell (alternate universe), Underswap (Alternate Universe), Swapfell purple (Alternate Universe), Horrortale (Alternate Universe)
07 Feb 2025
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You mum drags you to her boring science lab, forcing you to help her with her research, against your will and interest, until late at night. You're in a lab late at night, what could go wrong?
(Reader is 15 so NOT a romance between reader and the skelebois.)
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Waking up, reader decided that today was gonna be her last day. she skipped breakfast, went to work, came back to watch her favorite show and drink herself away for 4 hours before taking a bus to this local bridge, where she sat and contemplated jumping.
Killer, who had just finished a mission and had come to this AU for a break, saw her sitting there and decided to join her.
This book is gonna be kinda dark, i've been reading a lot of dark romance recently, and i realised i havent seen a good quality dark romance of the bad sanses, so i took it upon myself to make one, with my favorite idiot <3
Warnings include:
Stalking
rape/noncon
Cnc
bondage
somnophilia
knife play
blood play
masochism
sadism
choking
suicide
depression/anxiety
self harm
alcoholism
nicotine addictions
Use of marijuana & other drugs
A lot of sexand so much more.
Not sure if this book really classifies as a proper dark romance, but seeming as it's based on what i'm interested in, and i'm fucked up inside out,
Your mental health matters.
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Sans did not remember his previous name, only that he had been human. Rebirth in Undertale was novel, but he adapted, until he realized that the universe he was in was not the original one.
Unfortunately, it was too late when the machine took him to another universe, into a room full of skeletons.
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Sans no recordaba su nombre anterior, solo haber sido un humano. Renacer en Undertale fue una novedad, pero se adaptó, hasta que cayó en cuenta de que el universo en el que estaba no era el original.Lamentablemente, ya era tarde cuando la máquina lo llevo a otro universo en un cuarto lleno de esqueletos.
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"I could smell ya from a block away. This is going to happen and it’s going to happen tonight. Ya can fight me, kick, scream, and tell me “no” all ya want if it will ease ya conscious.
Ya can rest easy knowin’ that ya didn’t technically cheat on your husband because I wouldn’t take no for an answer. Call it a gift for your wounded pride.
But I’m still gonna fuck ya. And you’re gonna cum for me." -
"Sooner Or Later You're Gonna Be Mine" As Seen On TV - Now With Added Ending! by And_So_The_World_Went_Quiet for All you LOVELY people!
Fandoms: Undertale (Video Game)
06 Feb 2025
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You heard right, folks! I've taken it upon myself to rewrite the INFAMOUS "Sooner Or Later You're Gonna Be Mine" Fanfic by Staringback!*
Come one, come all, to see An Ending of this miraculous Fan-Fiction! come for the ending, stay for the rewrite, as I intend to do my best to make it not only easy to recap, but with added content and editing that’s enjoyable for the whole family!
... or, at least most ages over 18!Chapters are posted every Sunday!
*please read the author's note in the first chapter and all applicable tags, thank you
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You're a Mer-siren and you live off the coast of Ireland in a lagoon on the island named Burrow Rock. You used to live with your parents, but even they couldn't help but be caught by those damn fishers.
The island was mostly abandoned, except for the occasional dolphins and seagulls. Because of self-isolation getting to you, you started talking to the fish, and everything seemed a lot more fun from then.
Burrow Rock wasn't too special, but it had its times when it never seemed to stop amazing you, which only made you long for the power to walk through it.
But alas, you were cursed with a shiny, green, glittery that bound you to the waters for obvious reasons, how are you supposed to walk with no feet? It's not like you had a wheelchair!
Everything was fine, besides the sailor men trying to kill your friends 24/7, everything was chill. Nobody was going to take anything from the island, or the island from you.
But who knew you were bound to end up in a bathtub of all things, on a cruise ship, miles away from your home, and with a skele-ton of new roommates for the next 5 days? You didn't, but golly this is gonna be fun.
Series
- Part 4 of Undertale Stories
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In a post apocalyptic world reader and her child survive the best they can, but they get brought somewhere safe?
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Monsters emerged from Mt. Ebott only a year ago, many had accepted monsters, but many had not been as accepting of the new race.
You lived in a small town of Ebott a few hours drive outside of the borders of New Ebott city, you owned and ran a small shop. You knew just about everybody in this small town, but it seems there’s a few new comers, more specifically skeletons that move into the property down from yours.
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Kiss Me, Kill Me (And a Secret Third Option) by Embrace_the_Deep (DefinitelyNotABee)
Fandoms: Undertale (Video Game)
06 Feb 2025
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What had Ink tried calling him again?
Someone named Killer?
As fitting as that name would have been for the previous owner of his body, he clearly remembered that he had been referred to as 'Sans' in the blurred bits of memories.
Maybe he was being mistaken for someone else.
He hopes he never meets this actual 'Killer', but even if they were some sort of shady person- skeleton- thing, that doesn't excuse kidnapping a stranger and chaining them to the floor of your home after nearly killing them!
With the most unimpressed expression he could muster, Quill forced the aching phalanges of his right hand into a wrist-up fist, and extended his middle finger.i.e. A self-indulgent crack-treated-seriously fic featuring isekai!Killer vs. the Multiverse. Enjoy!
Series
- Part 1 of The Third Secret Option
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This fanfiction is based on the excellent work "Sooner or Later You're Gonna Be Mine" by Staringback. What if Frisk, after dating Sans, still doesn't change her beliefs about him and refuses Sans' advances...again. What would be the consequences?
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In order to summon a small version of your Soulmate you need few ingredients: Milk, a Love Bloom flower, a small fragment of your soul and a monster to perform the ritual.
You wanted to feel less lonely in your apartment.
You did not expect to find yourself with your hands so full.
I sometimes stream my writing, feel free to join! https://www.twitch.tv/ladyflame
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A fanfic set in Underfell focusing on Flowey and the events that occur.