Alternate reality

Alternate reality is usually a synonym for a parallel universe.

It may also refer to:

Alternative universe (fan fiction), fiction by fan authors that deliberately alters facts of the canonical universe they are writing about
Alternate Realities (Cherryh), a 2000 anthology of science fiction by C. J. Cherryh.
Alternate Reality (series), a 1987 unfinished role-playing video game series
Alternate reality game, a type of cross-media game
Alternate history, a genre of fiction consisting of stories that are set in worlds in which historical events unfold differently from the real world
Virtual reality, simulated reality
A euphemism for "psychedelic experience"

See also