Defonic - Create a unique sound environment at home or in the office
Clone Hero - Clone Hero is a free rhythm game, which can be played with any 5 or 6 button guitar controller...
Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Osu - Osu is Music, Rhythm, Single and Multiplayer video game developed by Dean Herbert.
Noizio - Feeling that the noise of the big city is too much for you to bear?
StepMania - Rhythm game for Windows, Mac, and Linux.