スパイク・チュンソフト
The game was first announced in July 2015, as a collaboration between Spike Chunsoft and tri-Ace in a fourteen-page article in "Weekly Famitsu". The game will be developed by much of the same tri-Ace staff that had worked on the first "Valkyrie Profile" game, with assistance from Spike Chunsoft staff as well. Other key staff for the game include character designer Mino Taro of Konamis "Love Plus" series, and music composer Motoi Sakuraba, composer for tri-Ace's "Valkyrie Profile" and "Star Ocean" series. A trailer for the game was shown at the Tokyo Game Show in September 2015. Trailers for each of the game's characters were released over time through "Famitsu"s YouTube channel. The game was first announced to be released on November 26, 2015, before being delayed to its final release date, December 17, 2015. Shortly after the game's Japanese release, Spike Chunsoft announced that there would be downloadable content collaborations some of tri-Ace's other games, including "Valkyrie Profile" and "Star Ocean 5" games. The collaborations, released in March 2016, consisted of character costumes based on character's from the two aforementioned titles, along with a costume to dress up as Monokuma, the primary antagonist from Spike Chunsoft's "Danganronpa" series of video games.