Sid Meier's Civilization Iv: Warlords -

A new diplomatic mechanic where players can subjugate other civilizations or offer themselves as a vassal. Vassals provide tribute and support their masters in war but may secede if they regain enough power.

To further distinguish civilizations, every civ received a Unique Building that replaces a standard one (e.g., the Zulu "Ikhanda" replaces the Barracks), providing specialized bonuses. New Civilizations and Leaders: Sid Meier's Civilization IV: Warlords

The expansion includes that offer gameplay different from the standard 4000 BC start, such as the Rise of Rome , Chinese Unification , and Genghis Khan . It also introduces three new wonders , including the Great Wall, which uniquely shows up on the world map. Civilization IV: Warlords Review - IGN A new diplomatic mechanic where players can subjugate