Alternative versions of Superman establish a new continuity for DC, affecting not only Superman, but all of the DC Comics characters. The versions of Superman from this time period are traditionally divided into three main periods. The first version of Superman began being published by DC Comics in 1938 appearing in "Action Comics" #1. To explain discrepancies in the aging of Superman across several decades, his earliest stories were retroactively portrayed as having taken place on an alternative world called Earth-Two. These stories take place from 1938 until the late 1950s, although the exact dividing line is unclear and some stories happened identically to
Superman: The Man of Steel (2002 video game) certain objectives. Superman: The Man of Steel (2002 video game) Superman: The Man of Steel is an action-adventure video game for Xbox, based on DC Comics' character Superman. It was developed by Circus Freak, and published by Infogrames under the Atari brand name and released in conjunction with Warner Bros. Interactive Entertainment and DC Comics. It is based on the comic book mythos, as opposed to most other Superman games which are adaptations of the character in other mediums besides the source material. Many portions of the game are given a time limit within which you must complete several objectives.