NEC was behind its competitors in terms of hardware (with only 16 colors and no sound support) and needed a way to regain control of the market. The first commercial erotic computer game, Night Life, was released by Koei in 1982.
Early eroge usually had simple stories, some even involving anal sex, which often led to widespread condemnation from the Japanese media.
Eroge was much less common on consoles - only NEC's PC Engine series had officially licensed adult games, and from the mid-90s, Sega's Saturn.
Both Nintendo and Sony disallowed adult video games on their consoles.
In 2006, JAST USA announced they would be releasing Enzai as Enzai: Falsely Accused, the first license of a BL game in English translation.This most often occurs as hentai scenes of the player character having a sexual encounter with other characters.Usually the sexual content is presented as a reward for the player's successful fulfillment of certain tasks.They have produced the BL games Sweet Pool, Lamento: Beyond the Void, Togainu no Chi and Dramatical Murder, each one of the last two have been given a manga and an anime adaptation.A 2006 breakdown of the Japanese commercial BL market estimated it grosses approximately 12 billion yen annually, with video games generating 160 million yen per month.Eroge gameplay is often in the style of a visual novel or dating sim.However, there are also many other gameplay genres represented within eroge, such as role-playing games, mahjong games, or puzzle games.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.Some eroge, such as those made by Illusion Soft, are just simulations of sex, with no "conventional" gameplay included.Boys' Love (BL) games (also known as yaoi games) usually refers to eroge oriented around male homosexual couples for the female market.