In video gaming, Pac-Man clones are unauthorized versions of Namco's popular maze chase arcade game Pac-Man or games that wholesale borrow the design of Pac-Man. The combined sales of counterfeit arcade machines sold nearly as many units as the original Pac-Man, which had sold more than 300,000 machines. The Giant List of Classic Game Programmers lists 57 Pac-Man clones released for various platforms.