Clone Hero - Clone Hero is a free rhythm game, which can be played with any 5 or 6 button guitar controller...
Gather Town - Spatial video-chat worlds for work and play
Osu - Osu is Music, Rhythm, Single and Multiplayer video game developed by Dean Herbert.
SpatialChat - Virtual space platform to help remote teams collaborate.
StepMania - Rhythm game for Windows, Mac, and Linux.
Teamflow - Feel like a team again with your own virtual office