Development on the game started in early 2015, with its first announcement occurring in September 2015, at that year's
Tokyo Game Show. The game was revealed as a new project by
Masato Kato, who had written and directed
Chrono Cross, and wrote parts of
Xenogears and
Chrono Trigger. Additionally, a "day and night" theme is also in the game. The game's soundtrack was primarily composed by Shunsuke Tsuchiya and Mariam Abounnasr, with the opening theme and a few additional tracks by
Yasunori Mitsuda, who had previously worked with Kato on
Xenogears and the
Chrono series. The development team was initially unsure on whether or not
voice acting should be implemented into the game, though after an impromptu questionnaire was issued to fans, over 70% favored its inclusion, so the team decided in favor of it. However, the limitations of the game being on mobile platforms lead to it only being partial voice acting, not full voice acting for every scene. The game was initially targeting a release in mid-2016, Post-release, the game received large-scale advertising and promotional support from GREE, including regularly released updates featuring new gameplay content. It was first released in English in selected countries on January 28, 2019, and in more regions on June 26, 2019. A
Microsoft Windows port was released on March 31, 2021, with one for
Nintendo Switch under development. In February 2026, a reworked version of the game,
Another Eden Begins, was announced for Nintendo Switch,
Nintendo Switch 2, and Windows, for release later in the year. ==Reception==