*Have you thought about a world where everything is exactly the same...
*Except you don't exist?
This AU has no further presence online than this page.
Eviltale is an AU where Frisk came through and did a major genocide route. Sans did not know that so he fled. He ended up in a place called the limpo-void. Later you're sent to eliminate him. After you fight him you can either kill him which will make you close the app, or you can spare him and help him reunite his friends and live together in harmony.
Frisk came through and did a major genocide route but whenever she gets to the Judgement Hall she see's she lost determination. Now she can't reset or save.