Open Hexagon is a lua Clone of Super Hexagon. Open Hexagon has the Same Objective as Super Hexagon, but you can make Custom Levels.
Packs are the Folders you use to play Custom Levels. You start with 3 Packs all by the Creator, Vittoreo Romeo. One of the Most Popular Open Hexagon level makers is Exchwasion, with almost 50 Very Popular Levels.