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.

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Undertale AU Wiki
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OneInControl

Post-Genocide Sequel AUs are AUs that take place after the Genocide Route of Undertale.

The exact cut-off between an AU qualifying as a Special Event, and an AU qualifying as a Post-Genocide Sequel is the world being destroyed. In Undertale, during the final cutscene of the genocide route, the screen must be consumed by nines and the game close a few seconds later for the AU to qualify as a Post-Genocide Sequel. If an event happens while Frisk and Chara are initially talking (such as Frisk just resetting), then the AU is a Special Event. However, if an event happens while Frisk and Chara are talking in the abyss (open up the game while system_information_962 is in your appdata UNDERTALE folder), then the AU is a Post-Genocide Sequel. If, however, the game continues after the player sells their SOUL (open up the game while system_information_963 is in your appdata UNDERTALE folder), then it's a Special Event. If Frisk then continues on to achieve the conditions required for a Post-Pacifist Sequel when the Post-Genocide Sequel requirements have been previously met, then the AU is a Post-Genocide Sequel.

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