Key is a Japanese visual novel video game development studio and brand under the publisher Visual Arts. The video games developed by Key are initially published by Visual Arts and released for Windows; consumer ports are published by Interchannel and Prototype. Key released their debut title, Kanon, in 1999, followed by their second title, Air, in 2000. Both Kanon and Air were initially released as adult games, but Key released their third game, Clannad, in 2004 with a rating of approval for all ages. Key's fourth game, Planetarian: The Reverie of a Little Planet, was also released in 2004 with a rating for all ages, and is described as a "kinetic novel" by the development team because of its completely linear storyline.
Key's fifth game, Tomoyo After: It's a Wonderful Life, was released in 2005 as an adult game and spin-off from Clannad; it expanded on the scenario of the heroine Tomoyo Sakagami. Key released their sixth visual novel, Little Busters!, in 2007 with a rating for all ages. Key's seventh title, Little Busters! Ecstasy, was an expanded, adult version of Little Busters! released in 2008. Key's eighth game, Kud Wafter, was released in 2010 as an adult game and spin-off from Little Busters! Ecstasy; it expanded on the scenario of the heroine Kudryavka Noumi. Key released their ninth game Rewrite in 2011 with a rating for all ages. Key released a fan disc of Rewrite titled Rewrite Harvest festa! in 2012.
Key's 11th game Angel Beats! 1st Beat was released in 2015. Key released the kinetic novel Harmonia in 2016. Key's 13th game Summer Pockets was released in 2018, and an expanded version titled Summer Pockets Reflection Blue was released in 2020. Three kinetic novels were released in 2021: Loopers, Planetarian: Snow Globe and Lunaria: Virtualized Moonchild. Another kinetic novel, Stella of The End, followed in 2022. A four-volume kinetic novel series for the Prima Doll multimedia project will be released between 2023 and 2024.
As of September 2022, 62 versions of Key's 18 released visual novels have been published by VisualArt's. Of the 62, 11 were released with an adult rating, and the remaining 51 had a rating for all ages. VisualArt's has ceased manufacturing 40 versions of Key's 18 games. Key released a box set called "Key 10th Memorial Box" in July 2009 containing six of Key's visual novels with a rating for all ages. The availability of Key 10th Memorial Box was restricted to ordering online. Key released "memorial editions" of their first five games in April and May 2010 with ratings for all ages.
Visual novel list Windows + Visual novel release history Title Version Release date Rating Status Kanon Kanon (limited edition) Adult Kanon (regular edition) Adult Kanon (all ages edition) All ages Kanon Standard Edition Adult Kanon Standard Edition All ages Kanon All ages Kanon (all ages memorial edition) All ages Air Air (limited edition) Adult Air (regular edition) Adult Air (all ages edition) All ages Air Standard Edition Adult Air All ages Air (all ages memorial edition) All ages Clannad Clannad (limited edition) All ages Clannad (regular edition) All ages Clannad Full Voice All ages Clannad All ages Clannad (all ages memorial edition) All ages Planetarian: The Reverie of a Little Planet Planetarian: The Reverie of a Little Planet (Kinetic Novel edition) All ages Planetarian: The Reverie of a Little Planet (package limited edition) All ages Planetarian: The Reverie of a Little Planet (package regular edition) All ages Planetarian: The Reverie of a Little Planet All ages Planetarian: The Reverie of a Little Planet (all ages memorial edition) All ages Planetarian: The Reverie of a Little Planet (English edition) All ages Planetarian: The Reverie of a Little Planet (HD edition) All ages Planetarian Ultimate Edition All ages Tomoyo After: It's a Wonderful Life Tomoyo After: It's a Wonderful Life (limited edition) Adult Tomoyo After: It's a Wonderful Life All ages Tomoyo After: It's a Wonderful Life (all ages memorial edition) All ages Tomoyo After: It's a Wonderful Life Perfect Edition Adult Little Busters! Little Busters! (limited edition) All ages Little Busters! (regular edition) All ages Little Busters! Ecstasy Little Busters! Ecstasy (limited edition) Adult Little Busters! Ecstasy (regular edition) Adult Little Busters! Ecstasy All ages Little Busters! Perfect Edition All ages Kud Wafter Kud Wafter Adult Kud Wafter (all ages edition) All ages Rewrite Rewrite (limited edition) All ages Rewrite (regular edition) All ages Rewrite+ All ages Rewrite Harvest festa! Rewrite Harvest festa! 15+ Angel Beats! 1st Beat Angel Beats! 1st Beat All ages Harmonia Harmonia (English edition) All ages Harmonia (Japanese edition) All ages Harmonia (limited edition) All ages Harmonia (regular edition) All ages Summer Pockets Summer Pockets (limited edition) All ages Summer Pockets (regular edition) All ages Summer Pockets Reflection Blue Summer Pockets Reflection Blue (limited edition) All ages Summer Pockets Reflection Blue (special edition) All ages Loopers Loopers (download edition) All ages Loopers (limited edition) All ages Loopers (special edition) All ages Planetarian: Snow Globe Planetarian: Snow Globe (download edition) All ages Planetarian: Snow Globe (package edition) All ages Lunaria: Virtualized Moonchild Lunaria: Virtualized Moonchild (download edition) All ages Lunaria: Virtualized Moonchild (limited edition) All ages Lunaria: Virtualized Moonchild (special edition) All ages Stella of The End Stella of The End (download edition) All ages Stella of The End (limited edition) All ages Stella of The End (special edition) All ages Prima Doll Prima Doll: Fuyuzora Hanabi / Sekka Monyō All ages Prima Doll: Mumei Tenrei All ages Prima Doll: Kōto Tantei All ages Prima Doll Encore All ages
Consumer ports + Consumer ports release history Title First release date Publisher(s) CERO rating(s) Android iOS Kanon (DC) BAir (DC)Clannad (PS2)CPlanetarian: The Reverie of a Little Planet (PS2) ATomoyo After: It's a Wonderful Life CS Edition (PS2)BLittle Busters! Converted Edition (PS2)BKud Wafter Converted Edition (Android)CRewrite (PSP)CRewrite Harvest festa! (PSV)DSummer Pockets (iOS)CSummer Pockets Reflection Blue (Android)CLoopers (Android, iOS)BHeaven Burns Red (Android, iOS)Lunaria: Virtualized Moonchild (Android, iOS) Harmonia (Switch) BStella of The End (Android, iOS)
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