A free app for Android, by UnknownProjectX.
Battle City is a pretty popular game in the 2010s, where this app is based from.
Super Tank Battle is an arcade game that involves tanks that are supposed to protect the base. This app has 500 built-in maps, together with five levels of difficulty.
Your mission is to annihilate all the enemies and defend your base. Once you fail to protect your camp, you will immediately lose the game.
In this game, you are allowed to summon one helper tank that will help you complete the level. Plus, the special items on the maps will let you power up.