I'm glad I came across your comments because I'm looking for similar articles to yours. Geometry dash is a vertical hardcore platformer inspired by The Impossible Game, a 2009 Xbox 360 exclusive platformer. The arcade game has a simple overall design and only uses a single-button control scheme. The game easily qualifies for the "easy to learn but difficult to master" list of hardcore games due to its simplistic design combined with a punishing gameplay structure.