Algodoo - Algodoo is a 2D simulator freeware product designed as a physics learning tool. It was originally created by Emil Emerfeldt as part of his master’s thesis in 2008. Read more about Algodoo.
Songlio - Free musical guessing game: race friends to name that tune
Crayon Physics Deluxe - Crayon Physics Deluxe
Rock On! - A song pop adventure - music trivia awesomeness
SimPhy - Interactive 2D & 3D Physics simulation software
SongTrivia2.io - Songtrivia2.io is a browser and mobile blind test game that allows you to play in real time with your friends or against strangers. Several musical themes, difficulty and game modes are available to create lots of different musical quizzes.