Test Drive Unlimited, being developed by Eden Games for Xbox 360 and PC, is first and foremost a racing game, but it's also an MMO--well, sort of. The main draw of the game is that, when played online, every single other online player is driving within the same world you are. Eden has recreated the Hawaiian island Oahu to a high degree of congruence with the real world version, including some thousand-plus miles of drivable roads. Though the game is indeed massively multiplayer, it does not contain many of the gameplay trappings of the MMO genre; again, this is first and foremost a racing game. Atari calls it M.O.O.R., Massively Open Online Racing, which, despite possibly being a PR term invented so that Test Drive Unlimited can be called "the only game in its genre!" or something, is actually a pretty good description.