Clannad(クラナドKuranado) is a Japanese visual novel created by the software company Key, who also produced the successful titles Kanon and Air. Key released a limited version for the PC on April 28, 2004, and the regular version less than four months later on August 8, 2004. The visual novel was later ported to the PlayStation 2, PlayStation Portable, Xbox 360, and PlayStation 3. The gameplay in Clannad follows a linear plot line, which offers pre-determined scenarios and courses of interaction, and focuses on the appeal of the five female main characters.