Fate/Grand Order (Japanese: フェイト・グランドオーダー, Hepburn: Feito/Gurando Ōdā) is a free-to-play Japanese mobile game, developed by Delightworks using Unity,[2][3] and published by Aniplex, a subsidiary of Sony Music Entertainment Japan. The game is based on Type-Moon's Fate/stay night franchise, and was released in Japan on 29 July 2015 for Android,[4] and on 12 August 2015, for iOS. English-language versions followed on 25 June 2017 in the United States and Canada,[5][6] and a Korean version was released on 21 November 2017.[7] An arcade version titled Fate/Grand Order Arcade was released by Sega in Japan on 26 July 2018.

The game is centered around turn-based combat where the player, who takes on the role of a "Master", summons and commands powerful familiars known as "Servants" to battle enemies. The story narrative is presented in a visual novel format, and each Servant has their own scenario which the player can explore. Servants are obtained through the gacha mechanic. This game is based on eroge, yet there is no segs feature.

Fate/Grand Order grossed $982 million in 2017, making it the year's sixth highest-grossing mobile game.[8] In 2018, Fate/Grand Order grossed $1.2 billion, making it the year's seventh highest-grossing free-to-play game.[9] As of 13 March 2019, the game has grossed more than $3 billion worldwide.[10] Total revenue crossed $4 billion by the end of 2019.