Open Hexagon is a free open-source clone of the game “Super Hexagon by Terry Cavanagh”. Gameplay is easy to learn but hard to master. You control a triangle that rotates around the center of the screen. Your goal is to stay alive as long as possible by avoiding the walls that go towards the center.
You can pick up the original Super Hexagon for $2.99 in the Steam store.
Website: vittorioromeo.info
Github: SSVOpenHexagon
Via linux_gaming