Demand among retailers was high, and Sega could not keep up orders for the system.More than a dozen licensed variations of the Genesis/Mega Drive have been released.In 1993, Sega introduced a smaller, lighter version of the console,Sega released a combined, semi-portable Genesis/Sega CD unit called the Genesis CDX (marketed as the Multi-Mega in Europe). In Japan, the Mega Drive fared poorly against its two main competitors, Nintendo's 30.75 million first-party Genesis units were sold worldwide.

Although the Master System was a success in Europe, and later in Brazil, it failed to ignite significant interest in the Japanese or North American markets, which, by the mid-to-late 1980s, were both dominated by Nintendo.In 1987, Sega faced another threat to its console business when Japanese computer giant The appearance of the Mega Drive was designed by a team led by Mitsushige Shiraiwa that drew inspiration from The console was announced in the June 1988 issue of Japanese gaming magazine Sega released the Mega Drive in Japan on October 29, 1988, though the launch was overshadowed by Nintendo's release of Sega announced a North American release date for the system on January 9, 1989.The European version was released in September 1990,Other companies assisted in distributing the console to various countries worldwide. The first peripheral released, the Power Base Converter (Master System Converter in Europe), allows Master System games to be played.Other peripherals were released to add functionality. Many games have been re-released in compilations or on online services such as the Nakayama received permission to proceed with this project, leading to the release of Sega's first home video game system, the In 1986, Sega redesigned the Mark III for release in North America as the Master System. The first part involved a marketing campaign to challenge Nintendo head-on and emphasize the more arcade-like experience available on the Genesis,To compete with Nintendo, Sega was more open to new types of games than its rival, but still tightly controlled the approval process for third-party games and charged high prices for cartridge manufacturing.Sega was able to outsell Nintendo four Christmas seasons in a rowSega's advertising positioned the Genesis as the cooler console,Sega held a company-wide contest to create a mascot character to compete with Nintendo's Although Katz and Sega of America's marketing experts disliked After the release of the Genesis in 1989, video game publisher As a result of piracy in some countries and unlicensed development issues, Sega incorporated a technical protection mechanism into a new edition of the Genesis released in 1990, referred to as the Genesis III. Games such as Furthermore, I can't let you sit here and buy this nonsense that this Sega In response, Sega of America vice president Bill White showed a videotape of violent video games on the SNES and stressed the importance of rating video games.
The system has 72 kB of RAM, 64 kB of video RAM, and can display up to 61 colors at once from a palette of 512. The system was later redesigned by JVC and released as the X'Eye in North America in September 1994. Although many consumers blamed its high launch price, it also suffered from a tiny software library; only two games were available at launch.