D-Cube is about an alien from a distant galaxy on his journey to earth. He has crash landed into a strange planet the D-Cube. To recover and assemble all the parts of his spaceship to continue with his voyage, the alien will have to make his way through tricky mazes on the D-Cube. The planet itself is a giant maze filled with cubes that only move in a particular direction. You have to guide him through these puzzles and help him collect the spaceship parts.