Panzer General is a classic computer wargame, a great adaptation of the classic board wargames. Its turn-based system lets you, as the commander of the German army in World War II, decide which will be the best moves to try and vanquish the Allied troops in each stage of the war.
It hasn't got fancy modern graphics, just a good 2D geographic representation of the battlefield and the military units deployed over it. Little animations show the action when actual combat takes place.
Probably, fans of modern real-time strategy won't like this game, but there's many of us who don't like only quick paced action but also having time to think quietly what our next movement will be, and what consequences will it have in the short, middle and long term.
So, if you are tired of Command & Conquer, Sarcraft and Age of Empires, or if you've liked more modern turn-based strategy games like Advance Wars for Game Boy Advance, I recommend you to try playing Panzer General or its more recent, 3D sequel, Panzer General III.