1 - 20 of 198 Works in Error Sans/Dreamtale Nightmare Sans (Undertale)
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Today was not a good day.
Yet still, he was forced to stroll through the crowded Gyftmas streets, with a disguise in tow, just to keep Ink off his ass. All of this just to get some presents for his ‘allies’. Which he hadn’t even wanted to do, but apparently they had gotten him gifts every year and he had yet to return the favor, Killer’s words not his.
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De petites histoires sur de méchants squelettes (collection de one-shots sur les Bad Sanses) by Lazyfire, Stygi0_medusa
Fandoms: Undertale (Video Game)
14 Dec 2025
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Une collection de courtes histoires concernant les Bad Sans et leurs relations, que ce soit romantique ou platonique <3
☆ Les tags sont ajoutés à chaque chapitre
☆ Vous pouvez interpréter les relations comme romantiques ou platoniques
☆ Les histoires ne sont pas interconnectées☆
Mises à jours très lentes
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Canon to Nobody asks to be a god, but understandable on it's own.
All you need to know if you arent coming form that fic:
Killer is only female in chapters that take place less than a year ago
Nightmare, Dream, Ink, and Error are all gods
There are greater gods that are mentionedIf you are coming from NBATBAG, there are spoilers for the general plot for a couple unfinished part four chapters
general
Trigger warnings are specified per chapter
All chapters are from Nightmare's perspective
He is a sad boi
Not nearly as evil as he thinks he is
when it takes place will be mentioned per chapter as wellenjoy
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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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A collection of Undertale UTMV one-shots and small drabbles that I don't want to make entire stories for.
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Nightmare, candy, and error created a child by combining their magic(by accident)
- Language:
- English
- Words:
- 677
- Chapters:
- 1/?
- Kudos:
- 1
- Hits:
- 50
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“My ecto-o isn’t unsummoning.”
He kept his gaze firmly locked on the carpet, refusing to look the other God in the eye. The tentacle in his grasp curled around his radius and ulna, and he squeezed it.
There was an awful, crushing silence for a few moments, before his husband spoke: “…you don’t think..?”
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After their mating cycles lined up, the "evil" Gods of Destruction and Negativity find themselves in quite the predicament. They must figure out how to balance their dangerous work with the task of ensuring their baby's development is healthy. That, and they have to ensure the Council does not find out.
No matter what, Ink cannot find out.
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A wish for connection that would never be, for all that he would receive from that loveless relationship was the act of twisted desires. Manipulated into committing heinous acts. Error was doomed from the moment he uttered “I love you” Oh how he began to loathe those words.
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Working through issues with a shunned diety by Hellian_Eden, Jesus_fox
Fandoms: Undertale (Video Game)
15 Nov 2025
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The Multiverse is vast and nigh infinite, possibilities, concepts, the very function of a world's reality only limited by sheer creativity.
Within this realm, Dreamtale exists as an enigma, plucked from another Multiverse entirely. The tragedy of it's Story forced to continue beyond it's Endings, for it forced the concept of Balance into the Multiverse's rules. Now open-ended, the only two Characters wanders throughout the Multiverse as one of it's Outcodes.
Dream broke out of stone to one colorful and curious Inkblot, so much to comprehend for someone so small. But alive nonetheless.
Nightmare woke up freshly dead.
Au: Get it? Cuzhe died lmao
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Nightmare and Error were two sides of the same coin, yet they never got along. One's goals were beyond the others understanding. But as the tides shift, they have to work together to survive. Eventually, reluctant alliance shifts into something more. Something deeper.
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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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Taming Strays by halfeatencorpse, skullscooper (halfeatencorpse)
Fandoms: Undertale (Video Game)
03 Nov 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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i have hands for building altars， lips to pray to reckless gods， i was made to be a devotee by necropathy
Fandoms: Undertale (Video Game)
27 Oct 2025
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The Guardian of Negativity writhes in his threads as Error works, each twist of his body only tightening the noose around him. He’s nearly finished now. Nightmare should’ve known better than to step into this place—“business” or not. This isn’t an AU, not exactly—but it is his territory. And here, the rules bend for him.
The creators like him in this place.
Even now, their voices echo around him, clamoring with delight like a distant war drum, hungry and laughing.
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“Hey- hey, you okay?”, Ink asked before mentally slapping himself.
Error was obviously not okay at the moment.The Artist silently cursed himself for not paying more attention when Swap had explained empathy to him.
Ah! How did it go again..?“Uhm- what are 5 things you can smell, 5 things you can feel-“
“In-K-k-K! Ju-juST ShuT tHE fUCK-k UP!”, Error shouted before going back to his uneven breathing.
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Or Ink and Error patching themselves up after a battle!Basically Error gets put through the wringer.
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Hope by nightmare_sanss_husband
Fandoms: Undertale (Video Game), Undertale Multiverse - Fandom, UTMV
19 Oct 2025
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Killer deserves all the angst.
TW: abuse, self-harm, eating disorder, animal cruelty, no comfort(?)
INCLUDES:
-Toxic Kist (Killer x Dust)
-HorrorDust
-Errormare (Toxic old men yaoi)
-(SPOILER) x Killer (you'll be shocked)- Language:
- English
- Words:
- 172
- Chapters:
- 1/?
- Kudos:
- 4
- Hits:
- 68
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Fresh meant to call his brother for help. That was the number he dialed, but when his pleading voice spoke out a darker voice answered his call for help. After all, Fresh was Error’s brother. -Prompt based on a WebRead Novel ad-
Series
- Part 1 of Fresh Adoption
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Deity-verse world-building and deleted scenes. by Jesus_fox
Fandoms: Undertale (Video Game)
14 Oct 2025
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Scrapped scenes that didn't make it from the main fic.
"Working through issues with a shunned Die-ty" (pun-intended) will be updated monthly unless something happens to me.
I don't know if it will be at the start, or end, or middle even! Of the month but it will. Episodes of productivity may not apply.
Comments feed my ego and get ideas out faster Idk what to tell you.
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An Errortober challenge to myself to write a fanfiction cenetered around the best Out-Code in the multiverse: Error!
Thanks to those who read and requested. Though it is now finished I felt like I learned a lot. Thank you.
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Day 8: Free day (Mate) by Geeky_Forever
Fandoms: X-Men - All Media Types, X-Men '97 (Cartoon 2024)
02 Oct 2025
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Tis my final fanfic for this years Morpherine Week so I decided to treat you all for a good old fic featuring Logan having more animalistic traits
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If you have read the old version that I am too lazy to edit please erase it from your mind and put this work in its place instead pretty please.
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TLDR: Error carries around a Miniature version of Nightmare around with him for like half or 3/4 of this fanfic