1 - 20 of 289 Works in Parental Dreamtale Nightmare Sans (Undertale)
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Summary
Where Killer drinks one of Ink’s paints on a dare, and you reap the consequences.
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You'd never expected to be one of those people who bonded with a random stray, and if you did, you never expected it to turn out like this. The tiny... blob of an animal was cute, affectionate, and melted your heart before you'd even named him. Unfortunately, not everything is as it seems. You've met this lovely creature before, and he definitely remembers you...
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This fic is more of a what if situation. What if instead of Nightmare taking Cross in, Error ended up doing that? How different would things be?
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Error watches, unflinching, as the skeleton's giant knife materializes, slicing through the stillness of the void. The vibrant glitches around his fingers pulsate more vividly in response, mirroring the tension. Despite the display of power, Error’s demeanor remains composed, almost amused by the dramatic reaction.
"You can call me Error. As for how I arrived here," he gestures loosely around them with a hand threaded with glitches, "I travel where the code calls, where anomalies beckon. Where the multiverse needs cleaned of anything that could harm it, and this place," he pauses, glancing around the stark whiteness, much like his own home, "Screamed for attention."
His gaze settles back on Cross, the colorful chaos of his form stark against the void. "You, however, are an interesting anomaly. Fighting so fiercely, clinging to existence in a world that has seemingly been erased." Error hummed, eyes still searching.
[[[ Slow Updates ]]]
Series
- Part 45 of Undertale Fics
- Part 5 of Roleplays
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When Killer’s voice gives out, the castle falls still. Nightmare brews tea.
[Novembmare - Day 3: Tea]
Series
- Part 69 of Undertale Fics
- Part 79 of One-Shots / Two-Shots
- Part 17 of Prompt Fics
- Part 4 of Undertale Fandom Event fics
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Just some short stories. Most of them are based off actually real stories I've heard before, others, are just from my mind.
I'd say their pretty good. (but no promises)
They're about Undertale AU ships. You may request a ship or even story ideas.
Please read. Or don't. I don't care. -
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After a traumatizing near-death experience, Cross, and the gang, have to deal with the fallout. It brings some changes, not necessarily bad ones.
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Taming Strays by prescriptionk9, skullscooper (prescriptionk9)
Fandoms: Undertale (Video Game)
28 Oct 2025
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error wasn't part of nightmare's gang in any meaningful way. he popped in now and then when their goals aligned, or when Night pulled strings to make sure that his compliance would benefit them both. bit at the end of the day, he ruled himself, and he liked it.
however, after having his skull all but smashed in, who else could he call?
alternatively : the bad sanses try to coax Error into their polycule like a stray cat
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NIGHTMARE has everything he could ever want- power, godhood, a bloodline, total control, and a partner who worships his every step. He had a few inconveniences along the way, but he could handle them with ease. His focus is now on raising his daughter and taking care of his wife and team. Despite being much more relaxed, he's still a deadly threat.
CORE FRISK is the only surviving hero. The Star Sanses and even Error are either dead, infected, or brainwashed. They're running the DRA, the Doodlesphere Rescue Alliance, and have three current goals. One, find a cure to the parasite running rampant through the multiverse. Two, find a way to save their friends from Nightmare's mind control. Three, kill the king himself and restore peace to everyone. But that . . . is much more difficult than they can manage.
DREAM is the heartless ruler of the Omega Timeline. Trapped under Nightmare's spell, he has no empathy for anyone. He hasn't had any for the past 7 years. Yet something still haunts him. The cursed gold heart locket he always wore, that he hated, yet couldn't find the heart to get rid of. It gave him the motivation to fight back, so did the corruption in his soul and his smoking addiction slowly killing him.
Series
- Part 3 of Imperare
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”The fuck do they mean ‘Sell you’? What the hell?” Killer snapped, his soul twisting in his mounting agitation. Horror growled low, eyesockets narrowed while Nightmare and Error trembled with rage. It’s Dust that puts the pieces together and asks the dreaded question.
“Cross…were you a child bride?”
The question hangs heavy in the air, no one daring to even breathe. Nightmare and Error are hoping beyond hope that Cross will denying it, that their youngest hasn’t been subjected to such atrocities. Their souls break when Cross gives a small miserable nod.
Series
- Part 21 of Nightmare’s gang as a family drabbles
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Hi- uhm- Story with Blue joins the Bad Guys and FGoD Error In one- Bad Dream, Ink gets a redemption arc.
Das it.
Also, UnderFell, UnderSwap and Undertale Skeleton Brothers are all brothers, so no Red/Classic.
Also, gray Echo Flowers inspo is from the story For The Forgotten Ones. I forgot who wrote it T^T.... But It's a good story, go check them out!
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Killer had his babybones, Crescent, very recently. This seemed to have just amplified his own selves instincts up to 100.
But,when Dream eats a negative apple,band becomes shattered..
Nightmare had changed too..
Passive didn't remember him. Passive was never him.
He attempts to join shattered, to keep his child safe. But shattered didn't want to risk killer's life.
So he advised killer to leave this multiverse, and find a safer one. For his and his child's sake.
He travels and finds many, many multiverses that wouldn't take him..or his child.
But, when he accidentally falls into a portal, leading to a nightmare variants home...
Will he find himself a home there?
Or will he and his child have to keep looking?
Series
- Part 1 of Multiversal chaos:)
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Dust wants to run away but Nightmare notice his shift of mood
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Dream revirava seu sótão.
Porque revirava seu sótão?Em meio de tantas boas lembranças com Nightmare algo no fundo da existência fala que tudo que foi vivido valeu a pena.
Sim, boas memórias valem a pena..._________________________________________
Essa é uma história sobre o Dream e Nightmare lembrando de boas coisas do passado.
- Language:
- Português brasileiro
- Words:
- 1,365
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 35
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A collection of Undertale UTMV one-shots and small drabbles that I don't want to make entire stories for.
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Killer had to have heard him wrong. He MUST have misheard Dust. Only... he didn't. And that thought filled him with more panic than an unexpected RESET, because... how else was he supposed to handle the casual comment about his brother dusting himself?
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Killer grossly misunderstands something Dust says, and a series of events happen to feed his worries. Really, Dust should've thought about his wording a little more.
Nightmare just wants his idiots to sit down and talk about shit before they freak out.
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Okay, you just wanted to get your energy drink then finish your homework then cap off the night with reading some fanfiction.
So why exactly are you sitting in front of Sans and Papyrus, skeletons who were very much fiction in your universe.
Series
- Part 1 of Reader Inserts
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The Fallen Hero Trio (first fanfic) by Rocket_Scientist
Fandoms: The Mandela Catalogue (Web Series), Undertale (Video Game), The Dragon Prince (Cartoon)
07 Oct 2025
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Three different characters from three different fandoms. All of them are the most popular amongst their fandoms they belong to. All of them are considered handsome, but alas, a fallen hero.
All of them are manipulative. Somewhat vintinctive. Their intelligence is valued. They plan to cause chaos across universes.
What would happen if those three characters came together and becomes allies for the better purpose?
The plan surely would work. But it would also cause chaos.
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An octopus is calling you “Moonbeam”, go figure. by Vin_cant_sea
Fandoms: Undertale (Video Game), Five Nights at Freddy's
06 Oct 2025
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Reader is a time-traveler, a universe-hopper, whatever you want to say. They often wake up with a need to explore consuming them, so they do what they do best, go off into random universes and multiverse, and well, fuck around. Problem is: now they’ve caught the eye of a certain God, who looks a bit too much like a slime covered octopus for you to take them seriously. Said octopus has decided that they’ll die before they let you out of sight and is now chasing you through the multiverse.
Basically: You’re a literal chaos incarnation, and you’ve caught Nightmare’s eye. We don’t know if he wants you dead, or if he just wants you—but you fucked around, and now you’ll probably find out.
Series
- Part 1 of Universe-hopping
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Where Have You Buried All Your Children? by Estel_dreamer
Fandoms: Undertale (Video Game)
30 Sep 2025
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Ink was familiar with creating, it’s what he was created to do after all. It was woven into his very magic and essence. Every universe, every variant derived from him in some way, whether it be from being formed by his own hands or splitting off from his own creation into something new. But even so, they were never truly his own. He gave them tangibility, but they gave themselves form, they took his starting point and rushed headlong into the unknown. He loved them all the same, as fleeting as they were.
Ink knew he shouldn’t have done it. He was putting more than just himself and this new universe at stake. But he wanted something that he could call his own, he wanted to be selfish and greedy just this once. He’d seen others have children, have beings tied so closely to themselves that they loved and called their own. He wanted that, he wanted his own child, his own creation.
A choice to be selfish may be just what the multiverse needs though to start repairing broken bonds, to form a happy family once more. Or it might break it all apart once and for all. Only time will tell
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In a world of gods and guardians, it would be expected that some would fall for mortals, and inevitable in such cases that demigods would result.
Killer and Cross are two such beings, half god and half mortal. With abilities mortals shouldn't have, but also not quite as durable as full deities, they reside somewhere in the middle, and unfortunately certain people would take advantage of that. Without parents around who would protect them, they must fend for themselves as they run to escape the prison they were trapped in, and this was how they ended up inside a tentacled skeleton's mansion without knowing what they were getting into. While the brothers now must figure out who they can trust, Nightmare and his friends have to discover these two teenagers' past before what or whoever they are running from finds and drags them back into their personal hell.
Hopefully these two can warm up to the guardians and gods despite what they've been told...