Armory weapon upgrades affect all human soldiers, Heroes and ships: those trained at the Academy, Barracks, Longhouse, Dock, Migdol, Fortress or Hill Fort. They do not affect myth units or siege weapons. All attacks are affected, including hand-to-hand hack attacks, ranged pierce attacks, and even ranged hack attacks, such as that of the Throwing Axeman.

Thor's hammer was named Mjollnir, which meant "smasher". It was forged by the Dwarf Brokk, who unfortunately made the haft too short, so Thor was forced to wear gloves when wielding it. Mjollnir hit anything at which Thor aimed, and would return to him after being thrown. It could shrink down to hang around Thor's neck, and perhaps as a consequence, the hammer became one of the most popular motifs in Viking jewelry.