1987 · First-Person Shooter · Atari ST
MIDI Maze (1987) was the world's first networked multiplayer first-person shooter, connecting up to sixteen Atari ST computers through their MIDI ports. Players navigated smiley-face arenas shooting at other smiley faces — predating Doom's LAN deathmatch by six years.
MIDI Maze used the Atari ST's built-in MIDI ports as a network interface, daisy-chaining up to sixteen machines in a ring topology. Each machine rendered its own first-person view; position data was transmitted through the MIDI connection.
MIDI Maze was developed by Xanth Software F/X and published by Atari Corporation in 1987. It was later ported to the Game Boy as Faceball 2000.