Maccabee
Rebuilder of Walls
Here are a few ways, any or all, that religion could be useful in the game.
1. After one's culture discovers the appropriate technology, one could choose to officially endorse (option A) a certain religion or (B) a certain religion grouping, (or none at all, such as a secular government overseeing a society whose religion or unique mixture of religions is expressed as part of its unique culture.) With the discovery of each new religious "technology", one could choose to change one's government-endorsed religion (group.)
This could work in one of two ways:
Option A: Upon discovery of Mysticism one's government could choose to endorse a specific Mystic religion from one's own culture. (For instance, European cultures would have only the Celtic Mythology to choose from, until they make contact with another culture, like Egypt, at which time they could choose to change endorsement to Egyptian Mythology. Each Mythology could have its own set of slight advantages culturally, or perhaps only a slight advantage in dealing with cultures sharing the same particular religion. ) After discover of Monotheism, one's culture could choose from Judaism, Christianity, or Islam (Did I leave any out?) OR
Option B: The choice upon discovery of a new religious tech would not be between specific religions, but between religious groups. Instead of choosing between, say, Judaism, Christianity, and Islam, you would choose whether to endorse Monotheism itself, or keep your present religious group (whether that's the Mythology, or no government-endorsed religion at all.)
1. After one's culture discovers the appropriate technology, one could choose to officially endorse (option A) a certain religion or (B) a certain religion grouping, (or none at all, such as a secular government overseeing a society whose religion or unique mixture of religions is expressed as part of its unique culture.) With the discovery of each new religious "technology", one could choose to change one's government-endorsed religion (group.)
This could work in one of two ways:
Option A: Upon discovery of Mysticism one's government could choose to endorse a specific Mystic religion from one's own culture. (For instance, European cultures would have only the Celtic Mythology to choose from, until they make contact with another culture, like Egypt, at which time they could choose to change endorsement to Egyptian Mythology. Each Mythology could have its own set of slight advantages culturally, or perhaps only a slight advantage in dealing with cultures sharing the same particular religion. ) After discover of Monotheism, one's culture could choose from Judaism, Christianity, or Islam (Did I leave any out?) OR
Option B: The choice upon discovery of a new religious tech would not be between specific religions, but between religious groups. Instead of choosing between, say, Judaism, Christianity, and Islam, you would choose whether to endorse Monotheism itself, or keep your present religious group (whether that's the Mythology, or no government-endorsed religion at all.)