Maze war was the first ever First Person Shooter, and first ever network game.

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Maze War (also known as The Maze Game, Maze Wars, Mazewar, or simply Maze) is a historically significant video game.

Maze War originated or disseminated a number of concepts used in thousands of games to follow, and is considered one of the earliest, if not earliest, examples of a first-person shooter.

Game play is simple by later standards. Players wander around a maze, being capable of moving backward or forwards, and turning right or left, and peeking through doorways. Other players are seen as eyeballs. When a player sees another player, they can shoot them. Players gain points for shooting other players, and lose them for being shot. Occasionally in some versions, a duck also appears in the passage.