Civilization IV: Warlords Expansion Pack - Mac "Warlords &#8211; A new great person type called the Warlord will be an Vassal States &#8211; You no longer need to obliterate an enemy to defeat them. Conquer your enemies and subjugate them to your rule. Game Scenarios &#8211; The expansion will deliver eight new historical scenariosspanning Alexander's conquests through Genghis Khan's dominance of Asia, in addition to other scenarios that challenge the way that you currently play the game. "New Civilizations &#8211; Six new civilizations will be included, giving you even more options when planning your domination of the world. Units, Resources, & Improvements &#8211; Many new items not available in the core game will be introduced in the new scenarios.