An eroge is a Japanese genre of erotic video game. In 1982, Japan's Koei, founded by husband-and-wife team Yoichi and Keiko Erikawa, released the first erotic computer game with sexually explicit graphics, Night Life, an early graphic adventure game for the NEC PC-8801. That same year, Koei released another erotic title, Danchi Tsuma no Yuwaku, which was an early role-playing adventure game with colour graphics, owing to the eight-color palette of the NEC PC-8001 computer. It became a hit, helping Koei become a major software company. On the other hand, some writers, like Naoki Miyamoto, considered the Yakyūken (1981) produced for Sharp MZ computers by Hudson Soft to be the first Japanese adult game.
