Jinkō Shōjo 3 Hannari (Expansion, June 2, 2008).

Jinkō Shōjo 3 Privilege Disc (Bonus Disc, ? 2008).

Jinkō Shōjo 3 (' Artificial Girl 3', November 30, 2007).

BotuPlay (Extra Disc, RapeLay, July 21, 2007).

Sexy Beach 3 Plus (Expansion, December 15, 2006).

Jinkō Shōjo 2 ('Artificial Girl 2', November 26, 2004).

Jinkō Shōjo ('Artificial Girl', July 23, 2004).

Chiku Chiku Beach (Expansion, December 9, 2003).

Des Blood 4: Lost Alone (September 13, 2002).

Requiem Hurts: Chisame's Escape (Expansion, ?).

Orgy Onnai Tsuri - Mokkoriman no Nani de Nushi Tsuri - ☆ (August 11, 1995).

Kito Island Women's Prison (November 2, 1994).

Sex Warrior Mokkoriman (August 27, 1993).

Neither Illusion nor Illgames responds to the speculations. Some players speculate about the relationship between Illusion and Illgames for the similarity of their products. On August 4, 2023, a new company Illgames (stylized in all caps) announced their new game Honey Comb.

All development and sales will cease on August 18, 2023. Illusion announced its closure on July 14, 2023. Prior to this change in policy, they were often translated and released in English and other languages by fans. However, with the release of Honey Select Unlimited in coordination with the online English erotic game storefront FAKKU, Illusion's policy has since changed. Originally, in response to the controversy of RapeLay, the products were not allowed to be sold or used outside Japan, and official support was only given in Japanese and for use in Japan. TEATIME and FULLTIME are linked as sister brands on the top page of the official website. There were many sister brands such as Illusion Core, Illusion Pro, Vision, MOTION, Dreams, mixwill soft, TEATIME, and FULLTIME, but currently only Illusion and IVR are active. In July of the same year, a hackathon related to 'VR Kanojo' was held, and the establishment of 'ILLUSION VR' (later IVR), a brand that mainly handles VR content, was announced.

The products are also known for characters customization and operation following a great hit of a virtual reality game 'VR Kanojo' released in February 2017. Following works after INTERACT PLAY VR released on August 24, 2001, the company shifted its main focus to producing real-time 3D graphics games, and later have become well-known for the products.

Things changed with the release of the first 3D graphics game, 'Confinement', and 'Makai' featuring heavy 3D graphics characters and backgrounds on February 14. Initially, the company focused on creating general adult games. The brand name is derived from the meaning of “visual entertainment”. is an independent manufacturer from Heart Electronics Industry. After launching as a new brand of Heart Electronics Industry in 1992, I-One Co., Ltd. It is notable for developing eroge video games with 3D graphics. Illusion ( Japanese: イリュージョン, Hepburn: Iryūjon) is a one of the adult video game brands of Japanese company I-One Co., Ltd.

Illusion soft video games