Unlimited health, cash.
Your mission in this awesome shooting game is to survive the alien invasion and stop them at all costs. Take control of the turret located in the middle of the desert near the military base engaged in the research and development of experimental armament. And destroy all alien creatures which began to attack humans. You can build new structures and also research new weapons.
Use YOUR MOUSE to aim and shoot. Use ZXCV KEYS to call for the reinforcements. Good luck!