2-Player Strategy Game Take four-in-a-row to a whole new dimension with Stratos Spheres! Stratos Spheres loses the 2-D board and lets you build the game – and your logic skills – as you go. To start, add one of your colored spheres to the white neutral sphere and pass it to your opponent. Your opponent then adds a sphere of his/her color. This 2-player game goes back and forth until one player gets four of his/her spheres in a row – in any dimension. With its 3-D construction, Stratos Spheres takes a classic play pattern and adds a dynamic new level of strategy and fun!