: Enhances the religious systems with over 350 new events and character traits centered on the emergence of world religions and religious dissent.
As of early 2026, the game has a robust library of downloadable content that adds new civilizations, mechanics, and historical scenarios: Old World Free Download (v1.0.65965 & DLC)
: Focuses on internal court politics, adding mechanics for Grand Viziers, "Rising Star" characters, and political eras that can lead to civil wars. : Enhances the religious systems with over 350
: The latest major expansion, introducing the Mauryan, Yuezhi, and Tamilakam civilizations, the Huns as a new tribe, and two new world religions: Hinduism and Buddhism. : Adds the Hittites as a playable nation
: Adds the Hittites as a playable nation and several historical scenarios focused on Ancient Greece, including the Battle of Marathon and the conquests of Alexander the Great. Gameplay and Updates
: Often cited by players on Reddit as one of the best for variety, it adds over 100 dynasty-related events, 30 new leaders, and 8 new wonders.