The Binding of Isaac - The Binding of Isaac is a 2011 independent video game designed by Edmund McMillen and Florian Himsl.
Meludia - Listening exercises and to sharpen your ear and music theory skills
Zelda Classic - Zelda Classic is a tribute to (what we think is) the greatest video game of all time:...
GNU Solfege - GNU Solfege is free music education software.
Evoland - Evoland - A short story of adventure video games evolution!
Perfect Ear - A simple yet advanced application for improving your solfege skills.