Simulation dating games for boys
To Heart's music was so popular it was added to karaoke machines throughout Japan—a first for eroge.After a similar game by Tactics, One: Kagayaku Kisetsu e, became a hit in 1998, Visual Art's scouted main creative staff of One to form a new brand under them, which became Key. It contains only about seven brief erotic scenes in a sentimental story the size of a long novel (an all-ages version was also released afterward), but the enthusiasm of the response was unprecedented, and Kanon sold over 300,000 copies.
According to Satoshi Todome's A History of Eroge, Kanon is still the standard for modern eroge and is referred to as a "baptism" for young otaku in Japan.
However, there are also many other gameplay genres represented within eroge, such as role-playing games, mahjong games, or puzzle games.
Some eroge, such as those made by Illusion Soft, are just simulations of sex, with no "conventional" gameplay included.
Most eroge games, a fairly large library, found its way on the NEC PC-98 platform.
FM Towns also received many games, more so than Sharp X68000 or MS-DOS, whilst the MSX platform (which had many eroge games in the 1980s) was nearing the end of its lifetime by now.