1 - 20 of 2,099 Works in Sans & Sans (Undertale)
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You were quiet for a long moment. “i’m supposed to be dead,” you told the skeleton.
“… you’re not,” he replied, after pausing for only a second. “there’s no supposed-to with you. you were in the anti-void, not an au. you nearly died, but i fixed you.” His voice was quieter than before, and his head was slightly tilted, like a curious dog. “i don’t normally bother to do that.”
“then why did you?” The words hurt in your mouth instead of your throat. It felt like carbonation below your tongue, and it took concentration to keep that static from leaking into your words. You weren’t used to talking. But this was important.
“why’d i fix you?” The skeleton paused, expression going blank for half a second, gaze flitting down to his scarf. “oh!”
The corners of his mouth tugged up again. “because i want a little brother of my own, of course!”
xxx
You used to be human, before what you called the Blank. You were a teenager, and you liked dogs and the sun and couldn’t remember much more than that. Then you were made into something else.
After your rescue, you try to adjust to living again - and attempt to understand why so many weird skeletons keep trying to adopt you.
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Killer can handle chaos. He can handle fights, noise, even blood.
But silence? Silence drags him back to places he’d rather forget.[Whumptober Day 5 - Phobia]
Series
- Part 54 of Undertale Fics
- Part 64 of One-Shots / Two-Shots
- Part 3 of Prompt Fics
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✨
He skidded to an unsteady halt as he finally got a close look at the two passed out Skeletons.“What the fuck?”
Blue didn’t swear often, but this? This definitely merited it.
✨Error and Ink are caught in a …little… accident and now everyone else is left to deal with the aftermath.
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A mix of fluff, angst, and crack! Universe and genre used will be in each chapter's author note, along with chapter specific warnings.
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The whiteness greeted you as you woke up again. It felt almost suffocating, especially when the only other people with you didn't exactly look or act normal. You just wanted them to emote, even a little bit.
All you wanted was to not be alone but no. You were reborn as Ink after you died in a lonely ditch. Now you have to navigate the vast Multiverse with your knoweledge of your last life. As you get friends and foes alike, you notice that not everything you know is trustworthy. Especially when you're a little lost skeleton with questionable ability to feel.
After all, anything could happen in a place this big.
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Dream’s life shattered before Nightmare’s very eyes, his brother’s future being wiped out in one bite of an apple. A golden apple. He had been eating so many that Nightmare knew the positivity would overwhelm him and his senses, it’d become toxic. Corrupting.
This wasn’t right. This wasn’t right at all.
OR
After Dream eats all the Positive apples out of the Tree of Feelings, he corrupts into Shattered Dream. Slowly, due to this error in the code, the Multiverse begins to break - and Nightmare is at the center of it all.
Series
- Part 1 of Longfics
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Blue had almost died. Because of Ink. Because Ink went too deep.
Or: Ink struggles with a paint overdose, Dream helps.
- Language:
- English
- Words:
- 586
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 15
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Error makes the ultimate trade for his sickly brother Geno. In this story Geno, Error, and Fresh are siblings.
Series
- Part 4 of Fictober 2025
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After a bad fight with the Gang, Ink is left dying as the other Star Sanses worry for him. Luckily, this isn't the first time Ink's died!
Written for Whumptober day 4: "Don't be scared, I've done this before."
Series
- Part 4 of multifandom whumptober 2025!
- Language:
- English
- Words:
- 954
- Chapters:
- 1/1
- Kudos:
- 4
- Hits:
- 25
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The Multiverse is dying. The balance has been tipped too far and now it threatens to crash down around everyone. But Dream believes the answer to their survival lies with their newfound Destroyer.
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When even Blues memories fail, can he trust his friends?
a gift to a friend :3
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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 bad Sanses respected their leader.
The god of Negativity was a fair and strategic boss. He provided shelter and food, ensured security and treated their wounds with something close to care.
What will his subordinates do, when their mighty Boss falters? When he's the one in need of care and protection?Nightmare's 'health' dips after a close call with an arrow of positivity. Nightmare would do it all again if it meant ensuring the safety of his boys.
Angst and Fluff! I know this fandom is sort of dead, but I still nonetheless will write this! Feel free to suggest crazy things, or even separate fics!
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Killer steals Cross’ favorite hoodie without asking. Cross pretends to be annoyed but ends up throwing a blanket over both of them instead.
[Flufftober Day 4 - Hoodie Weather]
Series
- Part 53 of Undertale Fics
- Part 63 of One-Shots / Two-Shots
- Part 2 of Prompt Fics
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waiting for the world to turn once more by Candy_Cryptid
Fandoms: Undertale (Video Game)
04 Oct 2025
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There’s a particular one that catches his eye. It seems bigger than Ink from where he stands, hanging from the left upper wall above some shelves.
It must have taken several hours to be this big. Despite that, it still takes Ink a moment to find himself. His figure is on the side in the display, off-centre, small.
Series
- Part 3 of Inktobertale 2025
- Part 5 of Ink’s Adventures
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Nightmare's sick of Killer's visits and attachment to Color, he finds a way to ruin the only other thing that makes Killer happy.
Series
- Part 3 of Kinktober 2025
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Dream gasps as he finally pushes Ink over into the grass, landing harshly on top of them as they struggle. He only barely caught them, and he doubts he would have been able to if not for the number of broken bones Ink was impressively managing to ignore.
Red paint. They had needed to heal, and they grabbed red first. What happened next was best described as a tornado.
But Ink's unnatural rage did not fade-- only turned on their surroundings, tearing up objects and plants and anything else they could find, avoiding Dream and the AU's residents as if barely restraining themself from turning on a person.
So that's how Dream ended up holding them down on the deep purple Waterfall ground, trying to force a vial of cyan paint on them like giving medicine to a wet, angry cat.
Series
- Part 1 of 255, 255, 255
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Error wakes up in a game he never chose to play—Until The Last Breath, a brutal survival world hidden between life and death. The only players? People trapped in comas. The only way out? Win.
To survive, he must fight through deadly floors, forge uneasy alliances, and follow three unbreakable rules:
[ 1. GAME OVER means death, both in-game and in real life. ]
[ 2. Artifacts must be crafted from Fragments found throughout the world by a Player. ]
[ 3. Reach the final floor before the chronometer runs out… or fade away forever. ]
There are no second chances. No resets. Just one question: can Error and his team beat the game before it beats them—and can love survive in a world designed to tear everything away?
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Nightmare recruits Ink into his gang of murderers. Things sure do happen!
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Cross makes breakfast for Killer, and Killer makes some progress with helping him get settled in.
Series
- Part 1 of September Mini-Fics 2025
- Part 1 of Diamond in the Rough