Shawnee (Tecumseh)

Age System: The game features three distinct Ages: Antiquity, Exploration, and Modern. Each Age has unique tech and civic trees. Civilizations are bound to one Age, and leaders can choose to transform into a new civilization for the next Age based on gameplay elements (e.g., owning 3 Horse Resources might unlock the Mongolian civilization in the Exploration Age).

Age Transition Crisis: All players face a temporary 'Crisis' during each Age shift, requiring the implementation of negative policies. This mechanic aims to prevent runaway leaders and give lagging players a chance to catch up.

New Yield Type - Influence: Influence is a new yield used for conducting diplomacy with other civilizations.

Rivers: Rivers are now categorized into small rivers (crossable normally) and wide, navigable rivers. Both types now run through tiles rather than along their edges.

Settlements: Settlements are divided into two categories: Cities and Towns, both falling under the broader term 'Settlements'. All settlements, except the Capital, begin as Towns. Towns cannot produce anything directly (all Production is converted to Gold) but accrue yields and allow for building purchases. Towns can eventually be upgraded into Cities.

Settlement Naming and Limits: City names are displayed in their native languages. Settlements are now limited by Age.

Settler Units: Settlers are divided into two units: the Founder (a Civilian Unit) and the unit that produces the player's Capital.