Battle for the Cores

WARNING! Chief Commander, our radars detected huge numbers of bellicose creatures moving quickly in waves in the direction of our Base. Do your best to defend the Base using your limited materials wisely - choose one of three types of Turrets or a Wall in the lower part of your HUD to place it on the field - choose a Turret or a Wall on the field to deconstruct it to get the Materials back, and place another one on the new spot of the field - the Walls are not expensive but can be destroyed. Enemy units are not only a threat, they are also a useful source of Cores – a resource needed to buy up...