It's time the aliens dominate the planet earth. Invaded several cities around the globe, sending its troops against the aliens who want to human soldiers in vain to defend the world Each unit has strengths and weaknesses, analyze these characteristics according to Earth's defenses. You can repeat the steps to earn more points and evolve each species and thus make things easier.

WASD / Arrow keys: Move Space: Spawn Egg E-Q / Mouse Wheel: Change alien selection