Initially only released for the PlayStation in 1999, demand grew so much for Driver that in 2000 the game was brought to the Game Boy Colour. The game was successful because it was so simple yet involving. It was played out in four cities, Miami, San Francisco, Los Angeles and New York, and each time a new city was unlocked, players could explore it as an open world. This was a big deal back in 1999 and it spawned many open world games in the future. Today, the Driver franchise isn't as strong, but it still has a loyal fan base.