For all you Audiosurfomaniacal fiends out there...
Audiosurf is an IGF award-winning puzzle/rhythm hybrid game created by Invisible Handlebar (Dylan Fitterer). Its track-like stages visually mimic the music the player chooses, while the player races across several lanes collecting colored blocks that appear in sync with the music. Currently, the full version is only available for purchase through Steam and includes the entire Orange Box soundtrack embedded in the game to play. Audiosurf is the first game to use Valve's Steamworks technology.