"i'm sans. sans the skeleton." – sans the skeleton Sans is the older brother of Papyrus and a major character in Undertale. He first appears in the Snowdin forest after the protagonist exits the Ruins. He serves as a supporting character in the Neutral and True Pacifist routes and as …

"i'm sans. sans the skeleton." – Sans Characters who is a AU Variant (or have the appearance) of Sans the Skeleton.

Insanity Sans is an alternate version of Sans that goes insane after Dr. W.D. Gaster injected him with determination during his experiments. He was originally created by Zero Danteero, but ownership was transferred to UTF in late 2022.

This Wiki is dedicated to all things Undertale and its Fanon! It is a home for those who love this great game and wish to express their fondness by expanding on the world created by Toby Fox in their own way!

Hi there, this a system/list that is here to show the threat level of what your character, item, verse, and so on may be in the Undertale AU Multiverse. It is a list divided up into nine tiers that each go up in power.

"It wants to be your friend." – Text from the original comic's caption SIXBONES (also known as the Bromalgamate) is a fanmade amalgamate of Papyrus and Sans. The story is set mainly before Frisk comes to the underground, and with Sixbones (the amalgamate's name) living in the True Lab. Sans's...

Sans Seraphim San is a Sans that began existing after Sans killed Frisk and then absorbed the other six human Souls. After a Genocide Route, Sans becomes fearful that Frisk would not come back (and reset the...

Dream (along with Nightmare) aren't truly Undertale OCs as they originated from a world outside of the Undertale Multiverse, With that said, it is stated that he will obtain his true Guardian at the true ending.

Decadent Society Sans is a version of Underfell Sans based on Swapfell-violet Papyrus. Originally, he was Underfell Sans in the style of Swapfell, but he went through a controversial redesign which lead to his AU being given to the community and the original design being reinstated as canon.

He was a Sans who was trapped within an unfinished, empty AU and out of sadness, he ripped apart his own soul to escape it. One day paint from the Undertale AU Creators or Community splashed onto him, giving him feelings and abilities that made him capable of feeling emotions.