Moon (styled as Moon.) is a Japanese adult visual novel developed by Tactics, a brand of Nexton, released on November 21, 1997 playable on Windows PCs. The game was described by the development team as a . The story follows the protagonist Ikumi Amasawa, a teenage girl who joins a mysterious organization called Fargo in the hopes of discovering why and how her mother died, who was a member of the same group. The gameplay in "Moon" follows a branching plot line which offers pre-determined scenarios with courses of interaction, and focuses on the three female main characters. The game ranked twice in the national top 50 for best-selling PC games sold in Japan.