1 - 20 of 281 Works in Parental Dreamtale Nightmare Sans (Undertale)
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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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A collection of Undertale UTMV one-shots and small drabbles that I don't want to make entire stories for.
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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...
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silence is sometimes enough words by Nevascaisgonnagetyoass for Evans_Multiverse
Fandoms: Undertale AU's - Fandom
27 Sep 2025
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What if, instead of Nightmare initially having
adoptedsought out the Murder Trio, they were the ones who went out of their way to dig out a place for themselves in the bitter and jaded spirit's heart? -
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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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Yeah… you are not gonna recover from this.
Nightmare is hosting a castle full of mentally ill people and it just goes off-the-rails so Nightmare doesn’t know what to do..
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Ink saw with his own eyes when Error was thrown into the abyss because of his attack. He thought Error was lost forever. Worse, the Multiverse began to destroy itself because too many Aus were appearing there and no one was there to destroy them.
So until the last moment, some action was taken.
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If you don’t heal your scars, you’ll bleed from people that didn’t hurt you by Estel_dreamer
Fandoms: Undertale (Video Game)
16 Sep 2025
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Cross learnt from a young age to not complain, to keep his head down, to do tasks without being asked to do them and not seek credit for them. He learnt from a young age how to manage other people’s emotions, to keep them happy because the alternative always ended in tears and pain.
Life with Nightmare and the gang is different. They don’t expect things from him, don’t wish him harm. But years of trauma cannot simply be forgotten. Habits that helped him survive don’t just go away overnight. He tries to keep it together, tries to go about his life as he always has. But the others are starting to notice and they know things cannot continue as they are.
Series
- Part 19 of Nightmare’s gang as a family drabbles
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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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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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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.
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- Part 3 of Imperare
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Being a scholar struggling with mental health isn't easy. The days feel like they're repeating themselves, and my stomach has been getting an unusually sour feeling recently. But when a student that I've never seen before keeps appearing, the cycle is broken. Who are they? Why is that hood always covering their face? Why are they always wearing gloves? When the student reveals themselves to be a skeleton from another universe, I jump at the opportunity to leave this place and join their gang of misfits. (This story is platonic and the main character is a teenager. Let it be known that this is from an OC pov, but is written in a way that it could be a reader insert, so I tagged it as such. I am not affiliated with any of the creators of these characters, nor do I support the actions of some of these creators.)
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System Error: Accidental Acquisition of Children by Frikisbits231
Fandoms: Undertale (Video Game)
05 Sep 2025
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Error slid down, glued to the tree, his back to the ground, into the lush green grass on the ground. Later, he'd take a look at his current situation and possibly eliminate the place without a problem. Meanwhile, Error was resting, leaning against this comfortable, curvy tree, closing his eyes to feel something, something of the place.
Feel... the familiar ambient magic?
Still no monsters, humans, or standard souls around. Well, no one could hurt him if he got some rest, right?
This time, he mentally prepared himself and repeated the safety tests he felt like a mantra so he could get some rest.
He fell asleep shortly after.
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Sweetness with hints of security, calm, and the tranquility of dawning rest captured his senses. Something... familiar. Like... like chocolate melting on his tongue. He didn't know how he recognized that either. Still, he pulled the tongue out of his space, to capture it. He caught the sensations, almost becoming overwhelmed by them.
(O: The one where Error acquires an abandoned baby bone, which is, of course, his offspring too, yay...)
Series
- Part 3 of Glitches & Errors Fics
- Part 2 of Random Writing
- Part 1 of ❤️🩹💞 Caring for Babybones 💞🥰
- Part 1 of Oh, look at a fanfic with one of the fanchilds!
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"This isn't a daycare, Dream!" -Nightmare, probably. by Frikisbits231
Fandoms: Undertale (Video Game)
04 Sep 2025
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Or: A baby Lux accidentally encounters a version of her uncle Nightmare, who is much calmer than the one from her multiverse. She leaves Nightmare no choice but to take care of her.
(Summary to be changed later, I hope...)
Series
- Part 3 of ❤️🩹💞 Caring for Babybones 💞🥰
- Part 2 of Oh, look at a fanfic with one of the fanchilds!
- Part 1 of This is Lux *slurps* and this is Lux's mom
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Nightmare finds a child while roaming the void, and decides to take it in. Not to raise of course, but to feed of it's negativity of course.. that has to be the reason. Follow along as Nightmare and his gaggle of nitwits struggle to raise a child, as hyjinx ensue! What will this wacky gang get up to?
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Artsy's UnderTale, DeltaRune, & AU Headcanons! by artsycloudysleepy
Fandoms: Undertale (Video Game)
29 Aug 2025
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This is not a fic, just a list of headcanons! Expect much autism and queerness to be poured into this lol :3
Will update when I remember to and at my own leisure!
(As of writing, there is only UnderTale AU content here - there WILL be base game + DR content too, but please be aware that currently there isn't any!)
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When the Minor Star follows the Small Moon by Frikisbits231
Fandoms: Undertale (Video Game)
29 Aug 2025
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Or: In which baby Lux attacks, again, but this time a Guardian of Feelings (child), Nightmare. And everyone in Dreamtale is confused.
- A protective (and survival) instinct is reborn in Nightmare (also known to Lux as Ma).
- Dream (child) helps his brother in every way he can... and his niece? (he creates confusion shhh-).
- And the Dreamtale villagers reconsider in their minds (finally) their attacks on Nightmare in the face of the purity that baby Lux emanates.(Yesss, I don't even know what I do during my periods of writer's block.)
Series
- Part 2 of Another Dreamy-tale...
- Part 4 of ❤️🩹💞 Caring for Babybones 💞🥰
- Part 3 of Oh, look at a fanfic with one of the fanchilds!
- Part 2 of This is Lux *slurps* and this is Lux's mom
- Language:
- English
- Words:
- 1,840
- Chapters:
- 1/?
- Kudos:
- 8
- Hits:
- 68
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Dream is desperate and he resorts to the one method he swore he'd never try—killing Nightmare. But things don't always go as planned, fortunately, things changed for the better.
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It's been six years since the notorious Bad Guys have been imprisoned. They were the cause of the destruction and chaos in multiple universes. Or were they?
When the multiverse is colliding in on itself, Cross, a 14 year old skeleton, is determined to save it! But that might mean teaming up with the baddest of bad and betraying Ink and Dream, the heroic Star Sanses who raised him since he was a kid. As Cross goes to save the multiverse, nothing is quite as it seems, not even his identity. Secrets emerge, drama ensues, and friendships are tested. After all, who says doing what’s right is easy?