It has been argued (rightly, I think) that Judaism it's not a proselitistic faith (it doesn't seek for new believers), it doesn't make much sense to have it. If we add the fact that most games, Greece, Persia, Rome and Egypt (and Babilonia in Warlords, I guess) choose this religion as SR, things go all weird. So we have to think on some alternative to Judaism . We need a religion that fills the gap on the eastern mediterraneum and middle east until Arabians come and spread Islam on the area by de force. Here are the ideas: 1.- mitsho's idea: zoroastrianism. This is good for Babilonia and Persia. Maybe for Greece, also. But it seems to me that Zoroastrian Rome or Egypt are as weird as Jewish. 2.- My idea: Christian Orthodoxy. Orthodoxy will be founded for the first civ to discover Alphabet, but will be auto-funded in Jerusalem by 1 AD if anyone didn't before. As most of the times, Greece it's the first to discover Alphabet, the holy city will be Greek (which makes sense, as Constantinople was the holy city of Orthodoxy until 1453 when it fell under Turks hands). It's not impossible to the other civs to have it, what it's good, because I don't like too much determinism. And the most important: for a good time, most of the mediterrnean civs will remain pagan (what it's histporically accurate), and after the historical foundation of Christianism, they will start to convert to the religion that still today is dominant on the area (with the exception of Egypt, Persia and Babylon which are muslim, but in our world they fell under Arabian rule, so if in RFC happened the same, they will be muslim anyway). Christianity's auto-foundation (now should be called Catholicism) will be delayed to the Orthodox schism, which happened on 1054 (so year 1050 will be good), and will be done on Rome, of course. Obviously, there's a lot of possibilities to be discovered earlier, but it will be done either by Rome (they beeline for Theology, most of the times), or by France, Spain, England or Germany. As I said, I don't like determinism, but if the result should be most of the times accurate to history. In any case, Catholicism will cover most of western europe, and Orthodoxy, the eastern. There's only problem. There's some risk for hinduism/buddhism to spread into Persia/Babylon. But this already happens, and never lasts for too long. But now one of these religions (or both) will have more time to spread into middle east, so we may have a Buddhist Persia more than once. Accordingly to this, we can just reduce the spreading rate of Indian religions a bit, and everything should be OK. What do you think? Do you have any better ideas? Would you modify one of these ones?