Play 3D Rubik, an online game where you solve a Rubik's Cube! Through the settings menu, choose to solve a 2x2, 3x3, 4x4 or 5x5 cube. Swipe to turn the cube. The goal is to get all 6 sides to have a different color completely covering it. The Rubik's Cube is one of the most difficult puzzles to master, and over time has created a whole line of different Rubik's puzzles.