Sega Sports' World Series Baseball, or simply World Series Baseball, is a sports game developed by BlueSky Software and published by Sega for the Genesis/Mega Drive. It is the first game in the series and was originally released in 1994. A Sega CD version was planned, but later cancelled. The game was a major advancement in Sega baseball games in that it included licensed MLB players and teams (the first baseball video game to have both such licenses [previous baseball video games only had one license]; they are based on the rosters for the 1994 MLB season), and relatively accurate gameplay. San Diego Padres broadcaster Jerry Coleman provides the play-by-play for the game.