Earth in the porthole

The alien invaders are trying to destroy people! Hold the shield of humanity!

Invasive aliens want to destroy or enslave humanity. To achieve this they use meteorites towards our planet. People have built to protect the planetary shield. Your task is to maintain it.

To restore the panel need to click on the ground. For each meteorite you get the resources to uluchsheniy.V Game 5 different meteorites and 100 levels.