What Was the First Video Game? Key Contenders Explained

There is no single universally agreed "first video game" because the definition evolved alongside technology in the 1940s-60s. Here are the leading milestones:

Major Contenders

1. OXO (1952) – Alexander Douglas, EDSAC computer (Cambridge). Tic-Tac-Toe on a 35x16 pixel CRT. First graphical computer game. Not real-time.
2. Tennis for Two (1958) – William Higinbotham, Brookhaven National Lab. Analog computer + oscilloscope. Side-view tennis with gravity physics, controlled by two boxes with knobs/buttons. First interactive, real-time, graphical game for entertainment. Dismantled after 2 years.
3. Spacewar! (1962) – Steve Russell et al., MIT PDP-1. Two spaceships duel in gravity well of a star. First digital computer game designed for play, widely distributed (DECUS tapes), influenced Nolan Bushnell (Computer Space → Atari).

Other Notable Precursors

• Cathode-Ray Tube Amusement Device (1947) – Goldsmith/Mann patent. Analog missile simulation on CRT overlay. Not a stored program.
• Nimrod (1951) – Ferranti custom hardware for Festival of Britain. Played Nim. Digital but fixed-function, not a general computer game.
• Mouse in the Maze / Tic-Tac-Toe (1959) – TX-0 at MIT. Light pen interaction. Early interactive graphics demos.

Consensus View

• First Digital Computer Game for Play: Spacewar! (most historians).
• First Real-Time Graphical Game for Play: Tennis for Two.
• First Commercial Arcade Video Game: Computer Space (1971) → Pong (1972).

Each pioneered critical concepts: interactivity, real-time graphics, physics simulation, and digital distribution. The "first" depends on which criteria you prioritize.