Sega Network Taisen Mahjong MJ
"Sega Network Taisen Mahjong MJ2", the first sequel, switched arcade boards to the Sega Chihiro, and brought in nationwide online play. "Sega Network Taisen Mahjong MJ3" was released and expanded the ruleset. "Sega Network Taisen Mahjong MJ4" switched arcade boards to the Sega Lindbergh, and a training mode was added. "Sega Network Taisen Mahjong MJ5 was" on the Sega RingEdge and had multi-touch touchscreens. It was updated as "Sega Network Taisen Mahjong MJ5R Evolution". Eleven years later after launch of the first game, "Sega Network Taisen Mahjong MJ" was ported outside of the arcade  with a version on PC and mobile. A full English localization of the mobile version was also released, however was shut down. English and Traditional Chinese languages was available in the Japanese version. It was also available on the free to play companion app of "Yakuza 0" on PlayStation Vita. A new version for arcades was also released, called "Sega Network Taisen Mahjong MJ Arcade."