Paint the Cube is a free puzzle game developed by Popcore GmbH for iPhone users. The game requires players to navigate through a maze by painting lines on the cube-shaped maze. The game is challenging because the maze is spread out over a cube, making it difficult to see the end of the path.

In the game, players swipe up, down, left, and right to spread colorful paths around the cube. It's satisfying to watch the cube twist and turn as you paint it with color. However, the game gets more challenging as more paths appear, and you must ensure that you don't leave any path unpainted. If you miss a path, you will need to retrace your steps to solve the puzzle.