The now-iconic game was first released in Japan by Namco-Bandai Games in May 1980. Originally called Puck Man, Pac-Man launched in the U.S. in October 1980 and went on to sell more than 100,000 units in its first year of production.
Now, the game is considered the world's most successful coin-operated game by Guinness World Records.
The name of the game comes from the sound of eating, according to the official Pac-Man website. "Paku" is the Japanese sound for "chomp."