TOUHOU GENSOU MAHJONG is a strategy game that combines elements of traditional Japanese Riichi Mahjong with the unique abilities of characters from the series. Over 130 characters from over 20 titles are featured, each with their own unique abilities. The campaign allows players to participate in mahjong matches with three to four players across 20 different stages inspired by famous locations from the Touhou universe. The stages feature alternate rule sets that add variety and challenge to the experience. Touhou Gensou Mahjong features a wide range of mahjong rule sets, from those that mimic competitive mahjong to more unconventional house rules that can radically change the dynamics.