Undertale AU Wiki

Welcome to the Undertale AU Wiki, the main place for documenting Undertale's AUs. If you wish to contribute, just know that it is REQUIRED for you to read the Rules and Guidelines and the Policy of the Wiki BEFORE doing so.

As this is an AU Wiki, this wiki is NOT meant for characters. The Undertale OC Wiki exists for those. This Wiki is also not meant for AUs that do not have presence anywhere else, and those should be put on the Undertale AU Ideas Wiki.

READ MORE

Undertale AU Wiki
Advertisement
SansWink
*kid, listen. there are spoilers on this page; be careful when you're reading.

*you don't want a bad time, do ya?

To access just the story, click here.

WARNING! This story is the sequel for Undertale: Chronicle. It is advised that you read that story first, before proceeding to Lost.
It's been nearly 4 years since the War For Monsterkind was won. Most have moved on, and started adapting to new lives. For now, peace reigns across the world. However, Frisk and his friends are about to be thrust into a whole new adventure, which will see them discover new places, new faces, and encounter challenges unlike anything they have seen before.

Characters[]

Undertale Characters[]

Alphys Almaro[]

Alphys is a monster scientist that lives in the town of Ebott near the base of Mount Ebott. She is the head of a secret project with Sans, and several other scientists, mostly human.

Asriel Dreemurr[]

Asriel Dreemurr is the son of Toriel and Asgore Dreemurr. He presently lives with Toriel, and his adopted brother, Frisk. Asriel still has a piece of Flowey in him, and the two personalities sometimes struggle for control.

Frisk Dreemurr[]

Frisk was adopted officially by Toriel just after the war. Following the events of Undertale: Chronicle, Frisk is making an effort to live a normal life, something he did not get to do in his past life.

Sans Gaster[]

Sans tends to come off more lazy, especially after the War For Monsterkind. However a few months ago, he began working on a secret project with Alphys and her team.

Story[]

Advertisement