Undertale AU Wiki |
Welcome to the biggest encyclopedia on Undertale and Deltarune AUs.
There are currently 609 articles, 2,806 files, and 28 active users on the site! Just know that it is REQUIRED for you to read the Rules and Guidelines and the Policy of the Wiki BEFORE contributing to our Wiki. This site contains spoilers for Undertale. If you have not completed the game, you may get spoiled. |
About Undertale AUs |
Undertale Alternate Universes, or "AUs", are alterations to the story, world, and/or characters of Undertale, be it crossovers, changes in aesthetic, or role-swaps.
"AU" is an umbrella term that includes "ATs". |
Featured Article Inverted Fate |
Inverted Fate is an Undertale AU taking place after a failed True Pacifist run. Asriel won the final battle and started to reset time, but lost control of his powers, resulting in the six main characters or "lost souls" swapping places but not personalities. This ends up creating a very different Underground.(more...)
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