It is possible to drive on small islands outside of the main island. It is worth noting however, that other built-up areas on the island are not represented. The roads are modeled after satellite images of the island of Oʻahu. The terrain differs from rainforest and mountains to sandy beaches and Hawaiʻi's capital city, Honolulu. In the world of Test Drive Unlimited, the player is able to drive both on-road and off-road in free-roam mode, challenging any real life racers they encounter. A third game, Test Drive Unlimited Solar Crown, is currently under development (with KT Racing and Nacon replacing Eden Games and Atari, respectively). It was soon followed by its sequel, Test Drive Unlimited 2 in 2011.
The game features over 125 licensed sports cars and motorcycles and a terrain is modeled after the Hawaiian island of Oʻahu that features some 1,000 miles (1,600 km) of roads and highways. Atari Melbourne House developed the PlayStation 2 and PlayStation Portable versions. Test Drive Unlimited is an open world racing video game developed by Eden Games and published by Atari for Xbox 360 and Microsoft Windows.