Merge Cube Challenge Home Merge Cube Challenge 0.0 / 5 ( 0 votes ) Your Rating? Discover Merge Cube Challenge – Play Free Now on WebGameFree! Merge Cube Challenge is a 3D arcade and fun game with three game modes. You can play alone or compete with your friends. Just check your strategy and quick thinking skills by competing against the CPU. In endless mode, try to get the highest score by using the bomb special power. Play the Merge Cube Challenge game at RegionGame now and have fun. Categories in which Merge Cube Challenge is included: 1 Player