Enter the Matrix is the first vieo game based on The Matrix series of films. It was developed by Shiny Entertainment and published by Atari and WB Interactive for the PlayStation 2, Xbox and Nintendo GameCube game systems, and for the PC. It reportedly cost over $30 million to create, one of the most expensive games ever developed. It sold one million copies in its first eighteen days of release, 2.5 million over the first six weeks, and eventually 5 million copies.Enter the Matrix was simultaneously produced with The Matrix Reloaded and The Matrix Revolutions.