【實用遊戲app】Tank Defend HD|最夯免費app-綠色工廠好玩App

The enemy attack to keep the city, you need to stop them. This is a simple tank defense game. There are four kinds of defensive forts, each with a different property. Attack frequency, range, power. Defense fort can be infinitely upgraded to increase power. To make good use of terrain, the construction of the fort to stop the enemy's advance.