Bad News Baseball, originally released as Gekitō!! Stadium (激闘スタジアム, Gekitō Sutajiamu?, lit. "Fierce Fighting!! Stadium") in Japan, is a baseball game for the Nintendo Entertainment System. The goal for players was to defeat every other team in the game. Gameplay could continue indefinitely until this occurred.

Baseball (ベースボール Bēsubōru?) is a video game made by Nintendo in 1983 for the Nintendo Family Computer, making it one of the first games released for the Famicom. It was later one of the NES's 18 launch titles when it was released in 1985 in the United States. As in real baseball, the object of the game is to score the most runs. Up to two players are supported. Each player can select from one of six teams. The game's team names are intended to represent members of the Japanese Central League in the Famicom version and members of Major League Baseball (MLB) for the American version.

Baseball Simulator 1.000 (超人ウルトラベースボール?, Choujin Ultra Baseball) is a baseball game released on the NES. It was released in 1989 in Japan, 1990 in North America.

Baseball Stars 2 (ベースボールスター2, Bēsubōru Sutā 2?) is a 2-player baseball arcade game released by SNK in 1992 for the Neo-Geo console. A less cartoony console version was released for the NES by Romstar the same year. The Neo-Geo version was released for Virtual Console on December 10, 2007 and the PlayStation 2, PlayStation Portable and Wii as part of SNK Arcade Classics Vol. 1.

Little League Baseball and Softball (officially, Little League International) is a non-profit organization based in South Williamsport, Pennsylvania, United States, which organizes local youth baseball and softball leagues throughout the U.S. and the rest of the world. Founded by Carl Stotz in 1939 as a three-team league in Williamsport, Pennsylvania, Little League Baseball encourages local volunteers to organize and operate Little League programs that are annually chartered through Little League International. Each league can structure itself to best serve the children in the area in which the league operates. Several specific divisions of Little League baseball and softball are available to children ages 4 to 18. The organization holds a congressional charter under Title 36 of the United States Code. The organization's administrative office is located in South Williamsport. The first Little League Baseball World Series was played in Williamsport in 1947. The Little League International Complex hosts the annual Little League Baseball World Series at Howard J. Lamade Stadium and Little League Volunteer Stadium, and is also the site of the Peter J. McGovern Little League Museum, which provides a history of Little League Baseball and Softball through interactive exhibits for children.

Major League Baseball (MLB) is a professional baseball organization that constitutes one of the four major professional sports leagues in North America. MLB teams play in the American League (AL) and National League (NL), which operated as separate legal entities from 1901 and 1876 respectively. In 2000, the leagues merged into a single organization led by the Commissioner of Baseball. The organization oversees minor league baseball leagues, which operate about 240 teams affiliated with the major-league clubs. With the International Baseball Federation, the league also manages the international World Baseball Classic tournament. Baseball's first professional team was founded in Cincinnati in 1869. The first few decades of professional baseball were characterized by rivalries between leagues and by players who often jumped from one team or league to another. The period before 1920 in baseball was known as the dead-ball era; players rarely hit home runs during this time. Baseball survived a game-throwing incident known as the Black Sox Scandal in the 1919 World Series. Baseball rose in popularity in the 1920s, and survived potential downturns during the Great Depression and World War II. Shortly after the war, baseball's color barrier was broken by Jackie Robinson. The 1950s and 1960s were a time of expansion for the AL and NL, then new stadiums and artificial turf surfaces began to change the game in the 1970s and 1980s. Home runs dominated the game during the 1990s, and media reports began to discuss the use of anabolic steroids among MLB players in the mid-2000s. In 2006, an investigation produced the Mitchell Report, which implicated many MLB players in the use of performance-enhancing substances, including at least one player from each MLB team. Today, MLB is composed of thirty teams: twenty-nine in the United States and one in Canada. Teams in MLB play 162 games each season. Five teams in each league advance to a four-round postseason tournament that culminates in the World Series, a best-of-seven championship series between the two league champions that dates to 1903. Baseball broadcasts are aired throughout North America and in several other countries throughout the world. Games are aired on television, radio, and the internet. MLB has the highest season attendance of any sports league in the world with more than 74 million spectators in 2013.

R.B.I. Baseball (known as Pro Yakyuu Family Stadium in Japan) is a baseball video game for the Nintendo Entertainment System (NES). It was developed by Namco and published by Tengen and originally released in 1986. R.B.I. spawned two sequels on the NES as well as versions for the Mega Drive/Genesis, TurboGrafx-16 (PC Engine), Sega 32X, Commodore Amiga, Super NES, Sega Game Gear, and Atari ST. R.B.I. is an initialism for "run batted in".