AUs that cover the backstories of characters and lore or change the backstories, leaving most other things the same.
“"meh, some things are better off forgotten" – Sans, after vaguely remembering something...Handplates
“ViralTale is a Sub-AU of EntropyTale in which is inspired by Horrortale and Axetale, and...ViralTale
“Before humans and monsters, there was one dominant species, Sages. Sages create and destroy...Mystictale
“FutureTale (later known as LastTale or PastTale) is an AU of the well-known Undertale. In this...FutureTale