Geometry Dash is a 2013 side-scrolling rhythm platform video game developed by Swedish game developer Robert Topala and published by his company RobTop Games. It was released for iOS and Android in August 2013, Windows Phone in June 2014, and on Steam in December 2014. The player controls an icon and must navigate through levels while avoiding obstacles. Geometry Dash includes 26 developer-made levels: 22 are auto-scrolling, and 4 are platformer levels. Geometry Dash includes a level editor, enabling players to design custom levels, share them online, and play levels created by other users.
Topala released his first game, Bounce Ball Thingy, on Newgrounds in June 2010. As he continued to develop games, he quit his civil engineering course to pursue his career as a game developer, releasing a handful of games prior to Geometry Dash. He began development in early 2013, being inspired by other titles such as The Impossible Game and Super Meat Boy. He published Geometry Dash in August 2013 and it quickly gained popularity. Since its release, Geometry Dash has seen numerous updates that have added gameplay elements, levels, game modes, and features.