MICA Team originally started as a
dōjin club consisting of three people, however during the development of
Girls Frontline, gradually expanded into a company of 117 employees. The game's premise was inspired by
Kantai Collection, but with anthropomorphized warships replaced with that of firearms, based on the team's anticipations that similar
moe anthropomorphism games would become popular in China. The difference from
Kantai Collection is that rather than having combat sorties fully automated and only having the player take control over resource management and base raising,
Girls Frontline gives players greater control over the outcome of combat. During the initial stages of the game's development, game producer Huang Chong (), more commonly known by the pseudonym Yuzhong (), worked in partnership with his former university-era confidant Yao Meng () who was tasked with operations management while Yuzhong handled development. The game was originally planned to be published under Yao Meng's company, Array Network Technology. However, due to personal conflicts, the two parted ways, and Yao Meng would eventually start a new company,
Yostar, which would later publish
Azur Lane as its first major game. One major cause of the conflict arose as a result of network issues during the game's testing phase, with both parties insisting that the other side was responsible for resolving the outage; while reflecting on this era of development, Yuzhong later explained in a 2016 interview that his team only had prior experience developing
dōjin games, and had limited understanding of online games and backend development. Artist Zhong Qixiang (), more commonly known by the pseudonym Haimao (), served as the game's original art director, but later left MICA Team in 2016 to form his own game development company
Hypergryph, which would eventually release
Arknights as its first game. After Sunborn initially responded with a statement explaining that "there has been no evidence that any K7 illustrator belongs to a certain extreme feminist organisation", South Korean players responded negatively to the announcement, and K7's character was subsequently removed from the game by the developers. In an August 2020 interview, Yuzhong remarked that during the 2014-2015 era of games, many players felt spending 10 to 20 minutes on daily tasks was a chore. Thus, he aims to make game time more fragmented when designing his own games. The other servers remain unaffected. In January 2025, MICA Team announced a new PC version of
Girls Frontline, and allowed players on the Chinese server to transfer game progress from the mobile version to the Steam version. On September 4, 2025, a
Steam release for the Japanese version of the game was announced, which later released on September 26, 2025. ==Collaboration events==