Championship Motocross Featuring Ricky Carmichael is a first-person sports game with a touch of motorcycle simulator from Funcom Dublin Ltd.. The main publisher of the game is THQ Inc.. The game is sometimes also called D.I.R.T.. The PC version of Championship Motocross Featuring Ricky Carmichael, unfortunately, has not yet been released, but we hope that the release will take place in the near future.