Tetris Worlds is a version of the popular video game Tetris. Originally released in 2001 for PC and the GBA, it later was released for the Xbox, GameCube, and PlayStation 2 in 2002. In 2003, an Xbox Live capable and a single-disc compilation versions (which included this game and Star Wars: The Clone Wars) was released for the Xbox. The latter was bundled with Xbox systems; however it is not forward compatible with the Xbox 360. The platform-specific versions of Tetris Worlds were developed by three different companies. Blue Planet Software developed the PC and PlayStation 2 versions, Radical Entertainment developed the GameCube and Xbox versions, and 3d6 Games developed the Game Boy Advance version. All versions were published by THQ.