Splatoon is a third-person shooter video game franchise developed and published by Nintendo. The series features fictional, anthropomorphic, cephalopodic characters known as Inklings and Octolings, based on squids and octopus respectively, that transform between humanoid and cephalopod forms at will. They frequently engage in turf wars with each other and use a variety of weapons that produce and shoot colored ink while in humanoid form, or swim and hide in surfaces covered in their own colored ink while in cephalopodic form.
The first game in the series, Splatoon was released for the Wii U in May 2015.1 A sequel, Splatoon 2, was released for the Nintendo Switch in July 2017,2 followed by an expansion pack, Octo Expansion, in June 2018. The series has received positive reviews for its style, gameplay mechanics and soundtrack, with both games in the series having been nominated and awarded several year-end accolades from various gaming publications. The series has sold over 15 million copies.
Splatoon has spawned numerous collaborations with third-party companies and established its own esports tournament circuit in 2018.4,5 It has spawned a manga series6 as well as music concerts in Japan.7