Popular games for collection MJ (Sega)

The third entry in Sega's MJ series of Riichi Mahjong arcade games. This entry adds a Jansou Mode where you can bet your gold to potentially earn more, as well as general enhancements over MJ2.

The first installment in Sega's MJ series of Riichi Mahjong arcade games. Although the game initially only supported local play with linked cabinets, it would later be updated in 2003 to support online play. Online service was discontinued on March 31, 2005.

The sequel to Sega Yonin Uchi Mahjong MJ, and the second overall entry in Sega's MJ series of Riichi Mahjong arcade games. This game had a higher focus on online play than its predecessor, introducing the League Battle mode. In addition to the buttons, a touch screen was also added for ease of operation, something the original game lacked.

The fourth entry in Sega's MJ series of arcade games. Most notably, this installment adds a Sanma (3 Player) league, a training mode, and an improved 16:9 Live terminal. It received numerous minor updates, with features such as a customizable narrator and a visible tile wall when spectating being added, before eventually receiving a significant upgrade in 2010 called Sega Network Taisen Mahjong MJ4 Evolution.

A home version of Sega's MJ series of arcade mahjong games for PC and mobile devices, released in 2013 in Japan. Notable features include a gacha system for acquiring new characters, music, etc. and match commentary. It was later translated and released in North America for mobile devices in 2020, although this version had its online service shut down less than a year later.