In observing the AI's efforts to pursue victory, I believe I may have identified a major flaw in the way the AI has been programmed to pursue religious conversions. I'd appreciate your observations regarding whether what I have observed are anomalies or typical behaviour. What I have observed when an AI is trying to convert another civ to it's religion is: An initial wave of Apostles, with no Missionaries (or Gurus) A follow up wave of Missionaries, with no Apostles (or Gurus) The wave of Apostles typically has great success, depending on their relative numbers compared to the number of Apostles defending the civ's current religion. The wave of Missionaries, however, does more harm than good. With just a couple of defending Apostles, other religions are able to remove more religious pressure by killing the incoming Missionaries than the Missionaries are able to spread (plus those defending Apostles boost their own religion by the same amount). So there's a couple of things going on here, I think. First, I think the AI programmer may have bought into the idea that the way to promote your religion is through use of "spreads", when in fact using spreads is very inefficient once another religion has taken hold of a city. Even a human player would struggle to convert other civs if they're relying on spreads to do so, rather than focusing on winning religious combats. Second, the AI seems to be coded to build only Apostles and send them, then to build only Missionaries, and send them. If you're going to send Missionaries to promote your religion (a dangerous action unless you know you've cleared the ground of all opposition), the only safe way to send Missionaries is with Apostle escorts. Therefore, instead of sending two separate single-type waves, the AI would likely do better if it sent a mixed group of Apostles and Missionaries as part of each wave. Thoughts? Has anyone observed more efficient AI behaviour in its handling of religious conversions? Is what I'm describing above an exception, or the norm? Note that my observations have involved situations where I'm the civ being converted and I don't have a religion of my own. The "defending" religious units are therefore from neighbouring civs who have previously converted me to their religion.