Spasim (short for
Space Simulation) is the first truly 3D
First-Person Shooter, as well as the first true 3D online multiplayer game. It was written by Jim Bowery for the
PLATO Network in 1974. It was inspired by
Empire, and like
Empire, used ships and weapons based on
Star Trek.
Spasim allowed up to 32 players, in four teams of up to 8 players each. The first version was a simple
Shoot 'Em Up with
phasers and torpedoes. The second version added home planets, space stations, and resource management. Teams had to work together in order to reach a distant planet filled with resources, while preventing rebellions on their home planets.
Spasim inspired
Silas Warner to write a 3D dogfighting game called
Airace, which evolved into Brand Fortner's
Airfight and then into Sublogic's
Flight Simulator (now
Microsoft Flight Simulator). It also inspired John Edo Haefeli to write a tank game called
Panther, which evolved into
Atari's
Battlezone.
Spasim provides examples of: