The history of online games dates back to the early days of packet-based computer networking in the 1970s, An early example of online games are MUDs, including the first, MUD1, which was created in 1978 and originally confined to an internal network before becoming connected to ARPANet in 1980. Commercial games followed in the next decade, with Islands of Kesmai, the first commercial online role-playing game, debuting in 1984, as well as more graphical games, such as the MSX LINKS action games in 1986, the flight simulator Air Warrior in 1987, and the Famicom Modem's online Go game in 1987. The rapid availability of the Internet in the 1990s led to an expansion of online games, with notable titles including Nexus: The Kingdom of the Winds (1996), Quakeworld (1996), Ultima Online (1997), Lineage (1998), Starcraft (1998), Counter-Strike (1999) and EverQuest (1999). Video game consoles also began to receive online networking features, such as the Famicom Modem (1987), Sega Meganet (1990), Satellaview (1995), SegaNet (1996), PlayStation 2 (2000) and Xbox (2001). Following improvements in connection speeds, more recent developments include the popularization of new genres, such as social games, and new platforms, such as mobile games.