StepMania

StepMania is a cross-platform rhythm video game and engine. It was originally developed as a clone of Konami's arcade game series Dance Dance Revolution, and has since evolved into an extensible rhythm game engine capable of supporting a variety of rhythm-based game types. Released under the MIT License, StepMania is open-source free software. Several video game series use StepMania as their game engines. This includes In the Groove, Pump It Up Pro, Pump It Up Infinity, and StepManiaX. StepMania was included in a video game exhibition at New York's Museum of the Moving Image in 2005.