The game was announced in November 2015, for both the Japanese and international market. It was introduced as the first title in a line of
adventure video games by
Kadokawa Games, the
Kadokawa Game Mystery series. Each entry in the series is planned to contain the same "fictional actresses" playing different roles across different titles.
Root Letter was released for the PlayStation 4 and the PlayStation Vita by Kadokawa Games on 16 June 2016 in Japan, and by PQube on 28 October 2016 in Europe and 1 November 2016 in North America. It was also released for
Microsoft Windows in Japan on 31 March 2017 and internationally on 7 July 2017, and for
Android and
iOS in Japan on 25 August 2017. A sequel,
Root Film, was announced to be in development in 2018. with a worldwide release date set for 2021. A
live-action video project based on the original game is additionally planned to be produced by
Perfect World Pictures. In August 2018, a new version of the game,
Root Letter: Last Answer was announced. The game is a live-action remake that allows the player to either use the animated or live-action scenes/photos for the game's graphics. It includes new scenarios that take place after the game's various endings. It was released in Japan on December 20 for the PlayStation 4, PlayStation Vita and Nintendo Switch, while it was released in other parts of the world on September 2, 2019 without having a Vita release. ==Reception==