Underverse Stories

This is Glitchtale, but the beginning is different. Instead of Sans being his usual self, he turns into himself from Dusttale, where he killed all of the monsters and ga...

(So you know how we got Glitchtale, UnderVerse and The Villian Sans Squad right?. Well what if I were to tell you guys that the three seperate series were the three hors...

What if someone from our world died knowing a lot from the undertale and their multiverse/underverse? What if that person also knew about the balance and didn't creat to...

(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...

Everyone in the Doodlesphere knows of the Star Sanses. Ink, Blue, and Dream. The heroes, the guardians, the saviors. Who would have thought they would fall? Nobody. Unti...

⪼A life where our beloved [Reader/REDACTED] died a very.. 'Fun' death. ⪼upon realizing their death, they'd realize that they reincarnated into error sans, a character th...

What Would You Do If A Certain Skeleton Was In Love With You. Who Would It Be? Would He Be Cinnamon roll likeBlueberry? Or A Sinnamon Roll Like Raspberry?

You were a kind human who has a brother named Frisk. You and Frisk always get along until both of you climbed up a mountain. very curious if the legend was true or not...

B A S E D O F F U N D E R V E R S E Your name is (y/n). You're the Godess of all living things in the Universe. You live in a secluded area in space not far from e...

Elise has die from car crash and got a soul transported to Absolute!Creator by one of the God Mistake Glitch will give you 5 wish. Also Welcome to the worst fanfic story...

What if someone became papyrus from underswap? What if they gave their brother more freedom? What if they were the one that error kidnapped instead of sans? (Things wil...

What if our favorite knuklehead ninja goes to Undertale multiverse, become a monster, and has gamer system? This is my first story.

NIGHTMARE is a sadistic bastard, that's just a fact. His goal is to corrupt Dream's soul and prevent the Doodlesphere from feeling positive emotions ever again. He has a...

20 year old (Y/N) is no ordinary human. About five years ago she was taken from her universe by Ink, a Star Sans who creates and protects AUs. He claims that she's dif...

Izuku Yagi was once a happy child a part of a family of 4 but all of that ends when it's found out he was diagnosed with a quirk that society has deemed villainous despi...

This just has a bunch or oneshots with error sans in them, mostly with ships as well. rules are in the first chapter MOST EARLIER CHAPTERS ARE BAD! READ AT YOUR OWN RI...

So I have been given permission to write this from Waffurupanson. Check out their book Sleepwalker. It's REALLY REALLY good! I read it twice. An AU where Error is not co...

Why am I making this? Why are you reading this? Why are we here?

Gone. In a single moment, in the blink of an eye, everything you have ever known or cared for is eradicated. Hopes and dreams, traditions and stories that date back cent...

What happens if error was ambushed. But not to kill but for something else? What if the gang thinks he's gone but he's really not? How will the gang react if they find e...