Geometry Dash is a horizontal runner-style casual/arcade game developed and published by RobTop Games. It was released for $1.99 USD (now $2.99 USD) on 13 August 2013 for Android and iOS, and for $3.99 USD (now $4.99 USD) on 22 December 2014 for Steam. A lite version of the game is available on mobile devices with fewer features, as well as free expansions, Geometry Dash Meltdown, Geometry Dash World, and Geometry Dash SubZero, which include exclusive levels.
The player takes the form of different entities with unique mechanics, such as a cube, a ball, and a UFO. Using one-touch gameplay primarily, the player must try to navigate through a series of interactive obstacles, movement-shifting transporters and behaviour-manipulating portals to reach the end of levels without crashing, all while listening to exciting music along the way.