Modes
Gathering Storm
Rise and Fall
Cities
The World
Combat
Air Combat
Unit Movement
Science and Technology
Culture and Civics
Faith and Religion
Diplomacy
City-States
Trade
Governments and Policies
Great People
Nukes
Tourism
Victory and Defeat
Teams


Gold. Units, nukes, districts, and buildings have "maintenance costs" that must be paid every turn. You can also extend your civilization's territory by purchasing individual tiles, or you can use the
Gold to purchase units and buildings. Upgrading obsolete units will also cost
Gold.
Gold may also be exchanged with other civilizations during diplomacy.
Gold. Units, nukes, districts, and buildings have "maintenance costs" that must be paid every turn. You can also extend your civilization's territory by purchasing individual tiles, or you can use the
Gold to purchase units and buildings. Upgrading obsolete units will also cost
Gold.
Gold may also be exchanged with other civilizations during diplomacy.