
1) Free game engine 2) Windows game
Found on
https://www.crosswordclues.com/clue/stepmania

StepMania is a cross-platform rhythm video game and engine. It was originally developed as a simulator 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....
Found on
http://en.wikipedia.org/wiki/StepMania
No exact match found.