Also known as: 游戏开发部, ゲーム開発部
In Blue Archive, Game Development Department is one of the clubs at Millennium Science School.
In contrast to their school's motto, this Department is focused on making retro-styled games; one can mistake it for a typical gaming club.
This club is the main focus of the Millennium Arc, Clockwork Flower Pavane. During the arc, the club is in danger of being dissolved due to A.) only having three members and B.) not having made any notable accomplishments throughout the school year. They often clash with Yuuka (Blue Archive) due to the club's issues.
Being a faction tag, this should only be used when all four or five members of the group are present and equally in focus, with the exception of Tendou Kei, as she did not appear in the story as a member initially.