Kantai Collection: Fleet Girls Collection, often abbreviated as Kancolle, is a Japanese free-to-play web browser game developed by DMM.com and KADOKAWA. Released in 2013, the game features anthropomorphized representations of World War II naval warships, known as Fleet Girls. Players collect and manage these characters to form fleets and engage in naval battles. The gameplay involves strategic planning, resource management, and turn-based combat. Players can upgrade their ships, participate in missions, and compete against other players. The game's popularity has led to various adaptations, including anime, manga, and merchandise, expanding its reach beyond the gaming community.