The War Mammoth is a special mount offered exclusively through GameStop and Game UK with preorders of Age of Conan: Hyborian Adventures. Like the Rhinoceros, it has the ability to tear down walls and break through buildings without the use of siege weapons. Players can acquire a War Mammoth for use in battles throughout the Border Kingdom if one is not purchased with the game.

Age of Conan is set in a low fantasy, pseudo-historical ancient world called the Hyborian Age. The world is filled with cruel gods, mythical creatures, lost civilizations and a struggling human race. Conan, the titular Barbarian, takes over the throne of Aquilonia, but King Conan's grip on the Aquilonian throne is weakening due to ancient evils that plan to throw the world into chaos. It is up to you, a new hero, to carve out your name in destiny.