In 2003 a Metallica video game was in the works - but it never saw the light of day.
Damage Inc. : Metallica was the work of Black Rock (then called Climax Brighton), the studio that would go on to make racing games Pure and Split/Second. >Damage Inc. was set to come out for the PC, PlayStation 2 and Xbox, but it was cancelled before it was even announced.
In the video, below, PtoPOnline reveals gameplay from an early in-development version of the game. It shows off vehicular combat and a Mad Max-style aesthetic. There's a day / night cycle and the ability to get out on foot and hijack vehicles.
PtoPOnline suggests licensing issues sparked the cancellation of the game, which was set to be published by Vivendi.
Black Rock would later be bought by Disney's video game division, but was shut down in 2011.