The Dwarven Foundry is a special building in Age of Mythology that is only available to Thor players. It replaces the Armory, and can be built in the Archaic Age, an Age earlier, and at half the cost. Technologies at the Dwarven Foundry are also considerably cheaper than those at the Armory (see below.) Consecutive technologies are not tied to a particular Age, so for example, a player could research both Copper Weapons and Bronze Weapons in the Classical Age.