Warlords: A new great person type called the Warlord.
Vassal States: Conquer an enemy and subjugate them to your rule.
Game Scenarios: six new scenarios.
New Civilizations: 6 new civilizations and associated unique units.
Civilization Leaders: Ten new leaders will be provided. The list will include leaders for the new civilizations as well as additional leaders for existing civilizations.
Leader Traits: Two new leader traits.
New Wonders: Three new wonders.
Unique Buildings: Each civilization will have a new unique building as well as their unique unit.
New Units, Resources, and Improvements: Many new items will be presented throughout the scenarios.
Core Game Tweaks and Additions: Expanded features and gameplay tweaks will be made to the core game.
Post-Release Patches and Game Upgrades: The pack will contain all of the patches and game additions (pit boss, etc.) yet released for Sid Meier's Civilization IV.