Square Enix released Kaku San Sei Million Arthur as its first mobile card game based on the folklore of King Arthur in Japan in 2012.
Square Enix released a sequel game, titled Kai-Ri-Sei Million Arthur, in Japan in 2014.
In addition, the Operation Han-Gyaku-Sei Million Arthur (Han-Gyaku-Sei Million Arthur) massively multiplayer online role-playing game inspired a television anime that premiered in October, and the second season premiered on April 4.
Examu developed a fighting game titled Million Arthur: Arcana Blood, which launched in Japan in 2017.