air is a japanese adult visual novel developed by key released on september 8, 2000 playable on windows pcs. key later released versions of "air" without the erotic content, and the game was ported to the dreamcast, playstation 2 and playstation portable. comic anthologies and art books were also published, as were audio dramas and several albums of music. kyoto animation produced a 13-episode anime television series and a two-episode anime mini-series in 2005, and toei animation produced an anime film in 2005.