The Sega Genesis, known as the Mega Drive in most regions outside North America, is a 16-bit home video game console which was developed and sold by Sega Enterprises, Ltd. The Genesis was Sega's third console and the successor to the Master System. Sega first released the console as the Mega Drive in Japan in 1988, followed by a North American debut under the Genesis moniker in 1989. In 1990, the console was distributed as the Mega Drive in Europe, Australasia, and Brazil.
Sega sold 30.75 million Genesis units worldwide. In addition, Tec Toy sold an estimated 3 million licensed variants of the system in Brazil, Majesco projected it would sell 1.5 million licensed variants of the system in the United States, and much smaller numbers were sold by Samsung in South Korea. The console and its games continue to be popular among game fans, game music fans, collectors, and emulation enthusiasts. The Genesis was succeeded by the Sega Saturn.