"Berserk and the Band of the Hawk" was first revealed in a short promotion video by Koei Tecmo on June 12, 2016, prior to Electronic Entertainment Expo 2016. A release for PlayStation 4, PlayStation Vita, as well as PlayStation 3 in Japan and Microsoft Windows in western territories, were confirmed. A week later, on June 20, a flyer was sent out in Japan, which confirmed a September 21 release in the country. In an interview, producer Hisashi Koinuma ensured fans that the team aims for a CERO D rating for the game in Japan and will do anything to avoid a CERO Z rating. The Z rating is the equivalent of the "Adults Only" rating by the North American board ESRB. On July 15, 2016, Koei Tecmo revealed that the western version of the game was planned to release in Fall 2016. However, when the game's official localized name was revealed, Koei Tecmo announced new release dates, being February 21, 2017 for North America and February 24, 2017 for Europe. On December 1, 2016, Koei Tecmo America revealed its Endless Eclipse Mode, a new detail for battle mechanics and alternative armaments.