Guitar Hero World Tour is the fourth major release in the Guitar Hero series of music video games, a series that has sold over 24 million units and earned more than $1.6 billion in retail sales.
It was released in Europe and on a limited basis in North America for the Microsoft Windows and Apple Macintosh platforms.
[3][4] The game was developed by Neversoft, with assistance from Vicarious Visions and Budcat Creations for the Wii and PlayStation 2 versions, respectively, and distributed by RedOctane and Activision.
While previous versions of the series have only used a guitar-based controller for lead and bass guitar tracks, World Tour adds in drums and vocals, allowing up to four players to create a virtual band.
For each instrument, the player scores points by matching controller actions with note gems on the game screen to avoid a bad performance that may end the song prematurely.
The set list has been described as containing well-known songs by "an impressive collection of artists" such as Van Halen, Jimi Hendrix, Joe Satriani, and Tool,[6][7] as well as a considerable number of tracks from European bands.