The RPG layer is where Imperium adds its most significant new content compared to previous titles:
Some players feel that the new units introduced imbalances that weren't present in Masters of the Broken World . Eador: Imperium
One of the most profound aspects of Eador is its approach to economy. Unlike traditional strategy games where building a city is the primary income source, Imperium favors a high-risk "loot economy". The RPG layer is where Imperium adds its