 Prior to 1988 there had been two games released with the official endorsement of Major League Baseball. In 1980 Mattel Electronics released Major League Baseball (also known as Super Challenge Baseball and Big League Baseball) for the Atari 2600 and the Intellivision. This version was developed by APh Technological Consulting. Four years later MicroLeague was licensed to develop and publish MicroLeague Baseball for the Amiga, Atari ST, Commodore 64, and PC. This version contained contemporary and classic teams and players and MicroLeague released extra disks that featured additional lineups.
