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Published by Idea Factory
40 games
Idea Factory — company
- Spectral ForceReleased: 1997Publisher: Idea Factory
- Steady×StudyReleased: March 25, 2004Developer: Idea Factory
- Mars of DestructionReleased: May 26, 2005Developer: Idea Factory
- Rebirth MoonReleased: November 24, 2005Developer: Idea Factory
- Hiiro no Kakera: Ano Sora no Shita deReleased: February 15, 2007Developer: Otomate, Design Factory
- Hisui no Shizuku: Hiiro no Kakera 2Released: August 9, 2007Developer: Otomate, Design Factory
- Osouji Sentai Clean KeeperReleased: April 24, 2008Developer: Lupinus, Idea Factory
- Hiiro no KakeraReleased: December 18, 2008Developer: Otomate, Design Factory
- Armen NoirReleased: December 9, 2009Publisher: Idea Factory
- Soukoku no Kusabi: Hiiro no Kakera 3Released: April 15, 2010Developer: Design Factory
- Desert KingdomReleased: May 27, 2010Developer: Otomate
- Moujuutsukai to Ouji-samaReleased: June 24, 2010Developer: Otomate, Design Factory
- Clock Zero: Shūen no IchibyōReleased: November 25, 2010Developer: Otomate
- Hiiro no Kakera: Shin Tamayori Hime Denshou - Piece of FutureReleased: July 14, 2011Developer: Otomate, Design Factory
- Kaminaru Kimi toReleased: October 20, 2011Developer: Design Factory
- Angelique Maren no RokukishiReleased: November 17, 2011Developer: Koei Tecmo Holdings
- Soukoku no Kusabi: Hiiro no Kakera 3 - Asu e no TobiraReleased: May 31, 2012Developer: Otomate, Design Factory
- Sweet Fuse: At Your SideReleased: June 14, 2012Developer: Otomate, Idea Factory
- Shirahana no Ori: Hiiro no Kakera 4Released: September 20, 2012Developer: Otomate, Design Factory
- Diabolik Lovers: Haunted Dark BridalReleased: October 11, 2012Developer: Rejet
- Koibana DaysReleased: June 20, 2013Developer: Otomate
- Shirahana no Ori: Hiiro no Kakera 4 - Shiki no UtaReleased: September 5, 2013Developer: Otomate, Design Factory
- Diabolik Lovers: Vandead CarnivalReleased: December 4, 2014Developer: Rejet
- Diabolik Lovers: Dark FateReleased: February 26, 2015Developer: Rejet
- Diabolik Lovers: Lunatic ParadeReleased: February 25, 2016Developer: Rejet
- Brothers Conflict: Precious BabyReleased: April 7, 2016Developer: Otomate, Idea Factory
- Mary Skelter: NightmaresReleased: October 13, 2016Publisher: Idea Factory
- Diabolik Lovers: Lost EdenReleased: February 16, 2017Developer: Rejet
- Code: Realize ~Wintertide Miracles~Released: December 21, 2017Developer: Design Factory
- Piofiore: Fated MemoriesReleased: 2018Developer: Otomate
- Diabolik Lovers: Chaos LineageReleased: March 28, 2019Developer: Rejet
- Super Neptunia RPGReleased: June 20, 2019Developer: Artisan Studios, Idea Factory
- Café EnchantéReleased: October 10, 2019Developer: Design Factory
- Dairoku: Agents of SakurataniReleased: May 28, 2020Publisher: Idea Factory
- Cupid ParasiteReleased: August 20, 2020Developer: Idea Factory, Studio Saizensen
- Neptunia ReVerseReleased: June 8, 2021Series: Hyperdimension Neptunia
- Winter's Wish: Spirits of EdoReleased: July 29, 2021Developer: Otomate
- Neptunia x Senran Kagura: Ninja WarsReleased: September 16, 2021Developer: Acquire, Tamsoft
- Shūen no VircheReleased: October 7, 2021Developer: Otomate
- Neptunia Game Maker R:EvolutionReleased: May 14, 2024Series: Hyperdimension Neptunia