Kanon

Kanon is a Japanese adult visual novel developed by Key and released on June 4, 1999 for the PC. An all ages version for the PC was released in January 2000, and was later ported to the Dreamcast, PlayStation 2, and PlayStation Portable. The Kanon Standard Edition was released for the PC in November 2004 playable as a DVD-ROM in adult and all-ages versions; this version incorporates the few extra graphics added to the earlier all-ages version of the game. Both Standard Editions add support for Windows 2000/XP and other technical changes such as more save slots. Otherwise, the all-ages Kanon Standard Edition is the same as the original all-ages version released for the game.

The gameplay in Kanon follows a linear plot line where the player interacts at predetermined times to choose several options that appear on the screen. The game was developed so that the focus for the player would be an intricate plot and the appeal of the five female main characters. The title is generally believed to be derived from the musical term canon; the second TV adaptation plays on this association by using of Pachelbel's Kanon D-dur, or Canon in D major, as a background piece at certain instances throughout the series.