Nightmaregang Stories

Cherry, an unusual swap-sans type, draws the attention of Dream and Nightmare when he is left the only survivor in his underground. With his Papy's gaster blasters follo...

They died. They had died alone, scared, cold.... only to reborn in a new life, as royalty of all things! Things were confusing, and scary, and maybe she should probably...

(Obsessed)Nightmare Sans x Blind Reader Trigger Warning! Abuse! For Mature Audiences ~~~ Y/n has known nothing but darkness her entire life. Blinded by the cruelty of h...

#3 out of 8k stories tagged as Ink (>.<) Omen was created as the Guardian of Hope and, indirectly, healing. If anybody can help the balancers of this multiverse, i...

After being trapped in a research facility for their entire life, babybones Cookie finally finds themself in the ocean, free to explore the place that should always have...

After dying, someone is reincarnated as a Shadow Papyri and settles into a routine. However, that routine seems to be continuously disturbed and constantly needs to be a...

Someone dies and is Reborn as Sans. Not just any normal Sans like they assume as first, but a HORROR Sans. As if dealing with Gaster when they were young wasn't enough...

Chaotic babybones Tiny is searching for his twin brother, who he's pretty sure was also thrown somewhere out into the omniverse. He's not going to let anything get in hi...

(This is a re-work of my old fanfic, and the original idea of this is M1lun4 while the Fgod is from Harrish6 the cover of the book was made by me, please do not steal it...

Error Sans had enough of Ink's Creativity so he stop destroying. Ink never realized it until the multiverse collapse. What will they do now?

What if...no one even appreciates reaper for all that he does as death? What if..even those on yin side hated him? Well not everyone but he doesn't know that there are a...

She had died laughing. Her parents had killed her siblings. She had let it happen. Despite promising to protect them, she let them die. Maybe that's why she ended up reb...

a story about a multiverse chaos happening around the whole multiverse , and this is the story that what happen in the outertale . it gonna have multiverse characters li...

originally posted this on AO3 and decided to repost here. just some one shots about our favorite creepy crawly parasite. (also the cover is mine.)

Every single Sans in the Undertale AUs know about Dream and Nightmare, after all, they used to be the protectors of the Tree of Feeling. If it weren't for them, then no...

It started back when Ink found himself not able to find his vial's, then it started with Ink and Error's fight, now it's ending with the collapse of multiple AU's caused...

Cross... Was a complicated individual. If you asked someone to describe him 'Complicated' would no doubt be used. However what many people didn't know was that Cross had...

You, (Y/N) (L/N), are a murderer. A serial killer. Monster has come up to the surface and you reveal in the chaos and opportunity. More victims. Easier to get away with...

Y/n, who was a member of the army in her universe before it was destroyed and she was rescued into the Omega Timeline, has seen some really rough stuff. The Omega Timeli...

Killer gets told to leave the house for a week to train in the woods to get better after being beaten by Cross for the millionth time. What will happen? Will he get kid...