Faith is one of the more advanced Game Concepts in Civilization VI, which contributes to what makes the Religion part of your Civilization grow. Faith is accumulated per turn, as dependent on all sorts of things throughout the game, Buildings, Wonders, Great People, as well as Tile Improvements, Natural Wonders and a few other things. Faith can be spent on Religious Units, depending on the Era of the game.
Once a Civilization reaches a certain amount of faith, it gains access to a Pantheon which gives bonuses for their entire empire. Faith is used as an alternate currency to Gold and can be used to purchase religious units like an Apostle, Great People, special buildings, and in Theocracy Government can purchase land combat Units. To achieve a Religious Victory your Religion must become the Predominant Religion for every Civilization in the game. A Religion is Predominant if it is followed by more than 50% of the cities in a civilization.
To get a Great Prophet a player has to aim for Great People Points. Stonehenge is an early game wonder which rewards a Great Prophet to start a religion but the Wonder can only be built adjacent to Stone.
- Worship buildings may be purchased with Faith.
- Naturalists may only be purchased with Faith.
- Great People may be patronized (purchased instantly) with Faith.
- The Oracle Wonder reduces this cost by 25%.
- The Theocracy government allows land combat units to be purchased with Faith and also grants a discount to Faith purchases.
- With the Rise & Fall expansion, purchasing combat units requires the Grand Master's Chapel built in your Government Plaza.
- Being the Suzerain of Valleta allows City Center and Encampment buildings to be purchased with Faith.
- The Jesuit Education belief allows Campus and Theater Square buildings to be purchased with Faith.