This building is designed to store a key resource of the game: the building materials needed for the construction and improvement of base buildings and further defensive structures. The game begins with a first level Materials Depot. Upgrade it to increase the amount of building resources you can store, and the rate that they replenish.
In 1939, Germany’s military-industrial complex accounted for 80% of the nation's gross national product. Germany became the world’s greatest producer of machine tools, and its entire industry was focused on the needs of the military. However, by the end of 1941, Germany was unable to make up for losses in its arms and equipment, which suffered heavily in the war with the Soviet Union. Despite their total militarization, the German economy was unable to fully meet the needs of the front.