Yakuman Houou is a Mahjong Board Game developed and published by Nintendo for the Nintendo 3DS. It was released exclusively in Japan on February 18, 2015. Yakuman Houou offers a digital rendition of Riichi Mahjong, a popular variant of Japanese mahjong. Key features include: Players can download and begin playing for free, with optional in-game purchases to unlock additional content or features. The game provides tutorials to help newcomers learn the rules and strategies of Riichi Mahjong. Supports up to four players in online matches, allowing for competitive play with others.