Idea Factory

Idea Factory Holdings Co., Ltd. (アイディアファクトリー株式会社) is a Japanese video game developer and publisher founded by former Data East employees in October 1994. A division of the company makes otome games under the name of Otomate (see list below). An international branch, Idea Factory International, was opened in California in 2013.

Otomate games
The following sublist are otome games that were developed by Idea Factory's Otomate division.

Playstation 2 games

 * 1) Fushigi Yuugi Genbu Kaiden Gaiden: Kagami no Miko (June 23, 2005)
 * 2) Hoshi no Furu Toki (September 22, 2005)
 * 3) Mitsu x Mitsu Drops: Love x Love Honey Life (April 6, 2006)
 * 4) Hiiro no Kakera (July 6, 2006)
 * 5) Hiiro no Kakera ~Ano Sora no Shita de~ (February 15, 2007)
 * 6) Ouran High School Host Club (April 19, 2007)
 * 7) Hisui no Shizuku - Hiiro no Kakera 2 (August 9, 2007)
 * 8) Will O' Wisp (September 6, 2007)
 * 9) Towa no Sakura (September 27, 2007)
 * 10) Petit four (28 February 2008)
 * 11) Edel Blume (April 24, 2008)
 * 12) Fushigi Yuugi Suzaku Ibun (May 29, 2008)
 * 13) "ppoi!" Hitonatsu no Keiken!? (July 17, 2008)
 * 14) Soukoku no Kusabi Hiiro no Kakera 3 (August 7, 2008)
 * 15) Hakuouki ~Shinsengumi Kitan~ (September 18, 2008)
 * 16) Kanuchi - Shiroki Tsubasa no Shou (October 2, 2008)
 * 17) Will o' Wisp ~Easter no Kiseki~ (October 9, 2008)
 * 18) Kanuchi - Kuroki Tsubasa no Shou (23 April 2009)
 * 19) Arcobaleno! (May 14, 2009)
 * 20) Wand Of Fortune, June 25, 2009
 * 21) L2 Love×Loop (August 20, 2009)
 * 22) S.Y.K ~Shinsetsu Saiyuuki~ (August 20, 2009)
 * 23) Hakuouki Zuisouroku (August 27, 2009)
 * 24) Hiiro no Kakera - Shin Tamayorihime Denshou (October 1, 2009)
 * 25) Death Connection, December 17, 2009
 * 26) Wand Of Fortune ~Mirai e no Prologue~ (February 25, 2010)
 * 27) S.Y.K ~Renshouden~ (March 11, 2010)
 * 28) Desert Kingdom (May 27, 2010)
 * 29) Moujuutsukai to Ouji-sama (June 24, 2010)
 * 30) Natsuzora no Monologue (July 29, 2010)
 * 31) Hakuouki Reimeiroku (October 28, 2010)
 * 32) Clock Zero ~Shuuen no Ichibyou~ (November 25, 2010)
 * 33) Pandora ~Kimi no Namae o, Boku wa Shiru~ (November 25, 2010)
 * 34) Armen Noir (December 9, 2010)
 * 35) Moujuutsukai to Ouji-sama ~Snow Bride~ (24 February 2011)