Open Kart is a go-kart simulation. The heart of the game is its career mode where the player races to the top in three classes: 100cc, 125cc and 200cc. After every race the player has to replace broken parts respectively upgrade them. The money for this comes from prize money and sponsors which are more generous when the player is on a high place of the ranking - which means that a steady performance is important.
The ten courses are from all over the world and have each a long and a short version. In the arcade mode the game randomly picks a few courses. The third single-player mode is "Time Attack" where the player is alone and races against a image of his best round. The handling of the go-carts is a bit more action oriented.