Stepmania

is a free, open-source rhythm game engine and cross-platform video game. Originally developed as a clone of Konami's Dance Dance Revolution , it has evolved into a highly extensible engine that supports various rhythm-based game types. Core Gameplay & Features

: It serves as the engine for arcade machines like In The Groove and Pump It Up Pro . Introduction to Theming - StepMania - Mintlify Stepmania

: StepMania 5.x is the modern baseline, though development has branched into specialized projects like Etterna (focused on keyboard play) and Project OutFox (enhanced engine for modern systems). is a free, open-source rhythm game engine and

: Players can use "modifiers" to drastically change how notes appear and behave visually. Customisation & Theming Introduction to Theming - StepMania - Mintlify :

: Includes a Couples mode for cooperative play where two players coordinate on one chart, often requiring them to switch positions on the pads.