This DLC for the game Wars Across the World adds the Battle of Tannenberg as part of World War I as scenario to the game. The Russian armies are trying to capture Königsberg and crush the German army, while the Germans have to push the Russians out of the German Empire. The Germans are inferiority in number, but have good defense positions and a railroad network for reinforcements and supplies. The Russians have two whole armies, but they are separated from each other and are of second-rate quality. The scenario has 14 turns, each representing one day between the 17th August and 1st September, 1914.