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 (e.g. New Super Mario Bros.) or online over the internet (e.g. World of Warcraft, Call of Duty). Multiplayer games usually require players to share the resources of a single game system or use networking technology to play together over a greater distance; players may compete against one or more human contestants, work cooperatively with a human partner to achieve a common goal, supervise other players' activity, co-op. Multiplayer games allow players interaction with other individuals in partnership, competition or rivalry, providing them with social communication absent from single-player games.
During its early history, video games were often single-player-only activities, putting the player against pre-programmed challenges or AI-controlled opponents, which lack the flexibility of human thought.