Robtop

Robert Nicholas Christian Topala (born 23 February 1987), also referred to as RobTop, jokingly as RubRub and as Zhenmuron on Reddit and formerly Newgrounds, is a Swedish game developer and the founder of RobTop Games. He has created the mobile games Rune, Boomlings, Boomlings MatchUp, Memory Mastermind, Forlorn (which was lost until YouTuber GD Colon found it), Geometry Dash and its lite version and expansions, Geometry Dash Meltdown, Geometry Dash World and Geometry Dash SubZero. Geometry Dash, now the only RobTop game, was released on 13 August 2013.