ExoPlanets is an addictive speed game that takes no-time to learn and enjoy playing. Align 3 to 5 planets to form a "Syzygy" along the middle "inter-orbit plane". Earn as much points as you can as you go through stages with progressive speed and exoplanet variety. Blackholes arrive seldomly at later stages so align 5 when you can to help you clear out the board, at least for the moment. But while you don't need them, keep them away from the "inter-orbit plane" because they prevent exoplanet annihilation. 1.1.21 UPDATE: Optimized code to reduce lagging. Added monochrome planets option provided for either an extra challenge or for color-blind accessibility.

ExoPlanets screenshots: