Tetrical 3D Tetris Stacking Game Developed by Digital Machina. Tetrical is a three dimensional stacking game. The object of the game is to obtain the highest score by filling layers with falling polycubes. The polycubes are all of the possible combinati

Tetrical 3D Tetris Stacking Game Developed by Digital Machina. Tetrical is a three dimensional stacking game. The object of the game is to obtain the highest score by filling layers with falling polycubes. The polycubes are all of the possible combinati