1 - 20 of 39,868 Works in Sans (Undertale)
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- Language:
- English
- Words:
- 3,950
- Chapters:
- 12/12
- Hits:
- 0
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The Apple's Skin by LazyJ
Fandoms: Fundamental Paper Education (Web Series), Undertale (Video Game)
08 Jul 2025
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Summary
After Abbie is killed by Ms. Circle he finds himself in a cold, dark, damp lab with two other skeletons. What now? And what is under Papyrus's sink?
Deviation from Cannon
Idea from Anomidae's Interloper ARG and youtuber Injustifixibilaity- Language:
- English
- Words:
- 1,141
- Chapters:
- 2/2
- Hits:
- 0
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Summary
Jimmy kills himself.. but, there's jail!??!?!?!?!?!?!??!? there's consequences??!???!?!? naurrr!!!
Series
- Part 2 of Dhar man plauge
- Language:
- English
- Words:
- 1,449
- Chapters:
- 1/?
- Hits:
- 2
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Instead of dancing alone, I should be dancing with you by xpswag
Fandoms: Undertale (Video Game)
07 Jul 2025
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Summary
Last year of high-school; exams, friends, recess. Cross shouldn't be nervous, but this year was the year a new person will enter his life: Killer. Between home, struggles and a lot of gossips (mostly gossips), Cross will have to work on himself. But with this new boy invading his thoughts, it won't always be easy to focus...
Especially when , after some mistakes, he will have to repair things like he can.
Aka Cross and Killer are two cringe teenagers (probably) falling in love with each other.(high school and human au as well)
Series
- Part 1 of UTMV HighSchool/Modern AU
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Summary
Disclaimers:
Several details in this fic are heavily inspired by 'Blue joins the bad sanses' comic, so go check that out
Canon innacuracies: Passive and Corrupted Nightmare are the same person, Ink is the creator and not the protector, Ink, Error, Nightmare, and Dream, are all gods, Blue, Killer, Horror, and Dust's specific au timelines were all destroyed, and i took liberties with how the void works. Also, no Cross sans will be mentioned, i don't know enough about underverse, and there will be some OC non-sans God/entity/things later on. The fic will be split into parts, each lasting nine chapters.
Schedule: Once a week, on Saturday, Sunday, or Monday, and i will post art or a reference sheet with every chapter. Trigger warnings will be specified in chapter notes. I've never written for undertale before, so please let me know what you guys think :3With that said, the actual plot: After an injured Error crashes into Nightmare and Co's home, a close bond starts to form between the two gods, both forced villains. In light of Ink's attempt to kill Error, Dream finally starts to lose it, and Blue gets dragged along.
Average chapter length is 500-2000
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The Serif household has been through many odd scenarios. After all, they are entirely comprised of other versions of the same two skeletons who got stuck in the world they have called home for six years, unable to return to their worlds and thus forced to carve out a life for themselves until further notice. All things considered, they found their stride and adapted to the ongoing weirdness of universe hopping.
That is, until she arrived. Flora, a woman so out of left field and disrupting their normality, appeared in the basement, battered and bloodied to hell and back. Stuck like all the others who had appeared before her, the Serif household is forced to accommodate her until she stabilizes, slowly beginning to get to know the lackluster and stone-faced woman who ensures they don't injure themselves via stupid means.
Few expect her to open up. Fewer expect her to accept becoming friends.
None expect for any of them to become much, much more.
Series
- Part 1 of The Interloper Stories
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Lagnya time by CherioCatbean, V_stellarshrooms_V
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game), Undertale (Video Game)
07 Jul 2025
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Summary
Sans and Jing Yuan have a picnic, idk!
Series
- Language:
- English
- Words:
- 292
- Chapters:
- 1/1
- Hits:
- 0
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Beautiful Times by CaptainExtremis
Fandoms: Undertale (Video Game), Deltarune (Video Game)
07 Jul 2025
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Summary
A look into the time after the Barrier between worlds was broken, told in separate but connected vignettes.
Or:
The story of three humans, the monsters they knew, and how they worked toward a common goal without realizing it.
I fought all through the night, oh, oh, but I made it alive.
The sun's starting to rise, oh, oh, these are beautiful times.
This fight of my life is so hard, so hard, so hard...
But I'm gonna survive.
Oh, oh, these are beautiful times.Series
- Part 2 of Crazy Mirror AU
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The end of the world (doesn't come soon enough.) by achromas_vee
Fandoms: Deltarune (Video Game)
07 Jul 2025
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Summary
Not even after destroying a world-ending threat, does Kris' life stop shattering around him.
(THIS FIC OPERATES UNDER THE SCENARIO THAT WE DON'T KNOW WHERE TORIEL IS DURING THE EVENTS OF CHAPTER 4 AFTER ENTERING THE CHURCH DARK WORLD.)- Language:
- English
- Words:
- 897
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 59
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First the dead rise and now SKELETONS? by Fern_butternut
Fandoms: Undertale (Video Game)
07 Jul 2025
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Summary
You never thought life in the apocalypse would be easy. Since you were young you always had a plan on what to do in different situations but this. This was the worst.
You grunted as your back hit the wall and you shuffled along it to stay out of sight. The groaning of the dead body around the corner grew closer to where you hid. Why did you have to run out of food and need to run to the store today. -
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A mysterious young woman wakes up in the underground, but this isn't her first rodeo. After reconnecting with her friends, she chooses the player name 'Koala' and her journey begins - for what feels like the 1000th time. When 'Koala' finds her human friend - a young child who she has yet to learn the name of - things aren't quite right at first. They both try to shrug it off and focus on breaking the barrier to free their friends. However, as memories of a darker timeline start to come back to Koala, she suspects the answer to their conundrum might not be so simple. Hints start to pile up that there may be an extra passenger hijacking their souls, but is this strange entity to blame or is it trying to help them?
Guilt is a sort of Alternate Timeline where The Player becomes a fully diegetic character. Inspired by the old "Who's to blame for bad choices?" days of the fandom, this fic will point its finger at everyone. The answer may be not so cut and dry when The Player isn't aware of her own role in the universe.
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When Nightmare orders Error to kneel for them—in the privacy of their bedroom, where the implication couldn't be misunderstood—they never expected him to actually obey.
"We wonder… how else you'd look, on your knees," they mused, the appendage shifting so the end could brush teasingly over his teeth, "With your face against the ground and your hips in the air for us."
A strangled noise left the Destroyer, his hands curling into fists, but he didn't look away. Didn't look away even as Nightmare slowly began adding pressure, guiding him forward until his face was pressed against the tent in their pants. It had been there since the beginning of this little encounter, although they weren't sure if the glitch had noticed that tidbit before. Judging by the way he was reacting, perhaps he hadn't dared sneak a glance.
Error had frozen, his breath coming to a halt entirely as the King pressed his cheekbone firmly into the clothed erection.
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Home Is Where the Soul Is by muse_writer
Fandoms: Stardew Valley (Video Game), Undertale (Video Game), Deltarune (Video Game)
07 Jul 2025
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Twenty-five years ago, a farmer took over her grandfather's old farm and turned into one of the most important farms in the Ferngill Republic.
You are her child.
You know the farm and the Valley like the back of your hand, having been raised in it your whole life. But now, with your parents going away for important business, the farm and its responsibilities fall onto you. Sure, maybe there is a lot of new weird stuff happening in the Valley that started as soon as they left and you were holding it all together with the skin of your teeth, but you got this! Totally. 100%
That is, until you turn on the TV one morning and it tells you that your little sister friend Frisk had broken a barrier and was now an ambassador to a bunch of monsters. Only for said monsters to drag you into their shenanigans and problems.
What could go wrong?
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Upon falling into an Xtale timeline with no memory of how they got there or who they are, a human encounters someone they've selfshipped with for years. But, being foreign to this "perfect world," they're quickly hunted down and forced to clean up the mess they accidentally caused - no matter the cost to their life, love, or humanity.
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Momento Mori (So Don't Fuck Life Up, You Don't Get A Second Chance.......Normally) by CrossoverAU
Fandoms: Undertale (Video Game)
07 Jul 2025
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Momento Mori- Latin for 'remember, you must die'
What is death, if not the end of one chapter, and the start of the next. Raine is dead. She wanted to be dead. She made her bed. Cleaned her room. Said her goodbyes. And tied the noose. When that didn't work, she slit her wrists. And when that didn't work, she took her grandfather's gun off the wall and shot herself in the head. That time, she finally did something right. Now she could sleep peacefully....
Why was she awake? She was definitely dead this time, why the hell was she awake?! And is that......Sans?! As in, Sans from Undertale?! As in the game that was one of her only reasons for not killing herself in high school?! That Undertale? That Sans? Why was he multiplying? And is that Papyrus?!
Death hurts. It causes pain to those around it even when it isn't attacking them. Then it comes for them next. If she wanted to get out of the Undertale world and back to her hopefully peaceful afterlife, she would need to show some bitches that before they bled out their marrow..... all over her damn floors?! Dammit Mutt, she just cleaned those!
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Alrighty, take 2 here we go!
A collection of ideas for characters from Undertale and its AUs. Some of these ideas will be inspired by other works, some by songs, some by other fandoms. Some will be submitted by readers. Regardless, all ideas in this book are free for people to use to create stories.
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Series
- Part 6 of Underverse Oneshots
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A Tale from Brockton Bay by NoctisVonReturnsis
Fandoms: Parahumans Series - Wildbow, Undertale (Video Game), Deltarune (Video Game)
07 Jul 2025
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Summary
A Friendly Worm Fanfic where no one has to die!
Series
- Part 3 of timelines jumping left and right
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Wrong Warp by Hideyoshi Faz (FreddyFazbutt)
Fandoms: Deltarune (Video Game), Undertale (Video Game)
07 Jul 2025
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Summary
A fic in which Frisk dies in undertale and is reincarnated as Ralsei's little sibling in the closet dark world. How will the prophecy be affected by the addition of Frisk?
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Summary
Papyrus is acting strange.
What will sans do about it?
- Language:
- English
- Words:
- 1,531
- Chapters:
- 2/?
- Hits:
- 10