"Ender's Game" is a science fiction novelette by American writer Orson Scott Card. It first appeared in the August 1977 issue of Analog magazine and was later expanded into the 1985 novel Ender's Game. Although it serves as the foundation of the Ender's Game series, the novelette is not considered to be properly a part of the Ender's Game universe, as there are many discrepancies in continuity between it and the novel. Source: Wikipedia (en)