Phlipple is a unique puzzle game. The goal of every level is to reduce a 3D shape to a single square. Elimination of squares is done by flipping edges around just like in a cardboard box. It starts off relatively easy to teach the basics just to later on serve hours of brain tickling fun. It's a great way to train memory as well as orientation in 3D. The game is released on a double license. The desktop version (for Windows and Linux) is free and open source and consists of 50 levels. The paid/premium versions of the game include 100 levels and are available for Android and iOS platforms.