E-Rank Troopers - Defense for Android

After colonizing a planet with deposits of rare minerals, a group of scientists faced a terrible threat. Mutant aliens living deep in the soil have crawled to the surface and started attacking the base. Using available weapons and personnel, the player needs to secure the safety of resource extraction.

Up to 10 soldiers and automated turrets can be placed on the defense wall. Each soldier needs ammunition. They are produced at the base in special buildings, but some resources will need to be obtained in raids on remote fields and caves. There are 24 types of soldiers to choose from: from infantryman to sniper and bomber. There are also 6 types of defense towers and over 200 upgrades, which can be unlocked by completing special additional tasks in each level.