Kharkov '42 is the third paid release in the Touch PzC series. You should install and play the original free release PzC: Panzer before installing this app as that will give you the chance to test the game engine on your device and become familiar with the interface.
This release includes 15 historical and hypothetical scenarios based on the PC Panzer Campaigns game of the same name. The game covers the Russian 1942 offensive at Kharkov prior to the German summer offensive later that year on Stalingrad. The scenarios are split between those that allow you to be the Russian commander in the first part of the operation and those that allow you to be the German commander during the counterattack. In each case, the AI plays the part of the opposing commander.
While this version of Panzer Campaigns will run on large-format Android phones, it is best on an Android tablet with screen size of 7 inches or more.