Eroge is a Japanese erotic video game.[1] The earliest known commercial erotic computer game is PSK's Lolita Yakyūken, released in 1982.[2] That same year, Koei released the erotic title, Seduction of the Condominium Wife (団地妻の誘惑, Danchi Zuma no Yūwaku), which was an early role-playing adventure game with color graphics,[3][4] owing to the eight-color palette of the PC-8001 computer. It became a hit, helping Koei become a major software company.[5]