Storm astrum defense

Astrum planet with high-grade deposit of uranium, the general trade resource. Industry Guild, the waste reaches its forces in the region recently planets. Defense Guild has sent you to protect the Earth from attack. You need to defend and consolidate the influence of the planets under Defense Guild Guild Union. Light Cannon: Defense pawn, small damage rate, attack and armor, as same as cost. Heavy Cannon: Good health, damage and armor. Best for all-round defense. Howitzer: Best for back areas defense. Uranium Refinery: Extracts uranium. Produces 8 units of clear unranium each several seconds. Missile Turret: Missile attack. Best fire range. Can attack distant units. Mortar: Very good defender. Best ratio of price and power. Big Defensive Gun: Best defender. Good health rate, damage and armor.