In the early game Great Prophets function nicely to create and enhance religions. However, later on, I find their effect on religion entirely overpowered. They can be used to convert entire cities, and the AI usually goes for my holy cities and those that benefit greatly from beliefs I have chosen specifically with those cities in mind. A city of millions of people in 1960s just drops the religion they've been following for a couple of thousand years and completely converts. So the question is, is there a mod for great prophets that prevents this from happening?
closed as not constructive by Invader Skoodge, Wipqozn♦, Frank♦, Schism, Ullallulloo Jun 16 '13 at 16:52
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You don't strictly need a mod for this, it is possible to defend against a Great Prophet within the rules of the standard game.
As per a previous question of mine, Can I politely stop an AI's Great Prophet from getting to my cities?, you can do one or both of the following:
Station Inquisitors in your cities - they will prevent any Prophet or Missionary from acting in that city.
Using non-combat units (such as workers) you can block the 'attacking' unit from getting next to your cities - a Prophet or Missionary has to be adjacent to your city to act.
If it's too late, and one of your cities has been converted, then Inquisitors can clear the 'attacking' religion, so you can then spread yours back to the city again (with Missionaries or time).