is an action video game developed and published by Marvelous. The game is the third installment in the universe that began with Fate/Extra and the second one to be released outside of Japan. It was first announced in March 2016 and released in Japan in November 2016 for the PlayStation 4 and PlayStation Vita consoles; its release in North America and Europe occurred in January 2017. Nintendo Switch and Microsoft Windows versions were released in July 2017 for all three regions. The game's plot involved the conflict between two factions led by Nero and Tamamo from Fate/Extra fighting each other over control of the Moon Cell and the Holy Grail. They are soon joined by a third faction led by Altera who has the intent of destroying civilization as well as Saber from Fate/stay night who wishes to stop the conflict between the three factions.