In the distant future, our planet is held under oppressive rule by a single man: Herzog Eins. Not all of Herzog Eins' followers agree in the dictatorship, however. One of his most respected generals, Ludwig, has decided to use his military skills to restore Earth to a time of peace; a time when people ruled fairly and justly. So Ludwig secretly gathered a force to stop Herzog Eins and is now prepared to revolt, knowing the consequence for such actions is almost certainly death. Yet the promise of freedom is worth such a risk, and he vows to fight until the Earth is saved.

Herzog Zwei is a futuristic real-time strategy game, the first of its kind on the Genesis. Your goal is to defend your base from enemy attacks while mounting an assault of your own. A top-down view of the battlefield will show your hovering attack jet used to transport troops, spy on the opposition, or morph into a robot to fight on the ground! Units you'll be able to build include tanks, robotic infantry, armored motorcycles, missile launchers, boats and supply trucks. Since you directly control the attack jet, you'll be able to transport your created armies to key sectors along the battlefield. Each unit costs money, however, so you have to spend wisely.

Herzog Zwei takes place on eight planets, each offering different terrain such as snow, desert, water and lava: Abgrund, Vulkan, Loch, Strand, Stadt, Eisfrei, Waldung and Oase. To win the game, you must defeat the computer on each planet through four levels of difficulty. Once you've completed the one-player game, the war doesn't have to be over: two players can battle it out simultaneously on a vertically split-screen! A password system lets players resume their campaign against Herzog Eins after turning off the console.