Short for massively multiplayer online game. [(online gaming) A computer game in which a large number of players can simultaneously interact in a persistent world.]

(online gaming) A computer game in which a large number of players can simultaneously interact in a persistent world.

A multiplayer video game is a video game in which more than one person can play in the same game environment at the same time, either locally on the same computing system (couch co-op), on different computing systems via a local area network, or via a wide area network, most commonly the Internet (e.g. World of Warcraft, Call of Duty, DayZ).