How do missionaries work?
Missionaries are designed to help spread a certain religion. To be able to build a missionary (there is one for each religion, for example a “Christian Missionary” and a “Buddhist Missionary”), you must either have built that religion’s monastery in the city you wish to build a missionary, or have the Organized Religion civic, in which case you don’t need to build monasteries. Once you have fufilled these requirements, you can build missionaries. Now, you have two options: the first is to attempt to spread the religion within your own empire to one of your cities. The other is to attempt to convert a city from a foreign nation. In order to do the latter, you must have an open borders deal with them so that your missionary can enter their lands and one of their cities. However, the process for converting a city is the same: simply click the button at the bottom of your screen. In most cases, the city will successfully convert to your religion, but not always. The chances of success depe