Sega Genesis
30.75 million first-party Genesis units were sold worldwide. In addition, Tec Toy sold an estimated three million licensed variants 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. By the mid-2010s, licensed third-party Genesis rereleases were still being sold by AtGames in North America and Europe. Many games have been rereleased in compilations or on online services such as the Nintendo Virtual Console, Xbox Live Arcade, PlayStation Network, and Steam. The Genesis was succeeded in 1994 by the Sega Saturn.
Sega Genesis
The Genesis library was initially modest, but eventually grew to contain games to appeal to all types of players. The initial pack-in game was "Altered Beast", which was later replaced with "Sonic the Hedgehog" in 1991. Top sellers included "Sonic the Hedgehog", its sequel "Sonic the Hedgehog 2", and "Disney's Aladdin". During development for the console, Sega Enterprises focused on developing action games, while Sega of America was tasked with developing sports games. A large part of the appeal of the Genesis library during the console's lifetime was the arcade-based experience of its games, as well as more difficult entries such as "Ecco the Dolphin", and sports games such as "Joe Montana Football". Compared to its competition, Sega advertised to an older audience by hosting more mature games, including the uncensored version of "Mortal Kombat".