We should bring some stuff from Crusader Kings II: Legacy of Rome and The Old Gods since the map isn't very diverse and it would bring more wars and stuff.
-If you are catholic Roman Empire/orthodox Byzantine Empire and you own the holy shrines of both catholics and orthodoxy, as well as Jerusalem and Egypt, you should be able to mend the great schism. Every civ gets a pop-up asking them wether to convert to orthodoxy/catholicism and if they keep their old religion, war is declared upon them.
-If you are the Byzantine Empire, Rome is dead and control what was once Justinian's empire, you become the Reformed Roman Empire.
Core Area: Justinian's Empire
Historical area: All the area that once formed the Roman Empire
UB: Hippodrome
UU: Legions as replacement for Heavy Swordman and Vanilla BTS Catapharcs
UP: The Power of New Rome: Declaring war on nations that are in your historical/core area grants you armies a la Alexander's conquests.
UHV1: Conquer your historical area and keep it by 1500 A.D
UHV2: Have 20+ stability by 1500 A.D
UHV3: Be Nº1 in army size, score, territory and population
You are also granted 30+ stability and 1000 gold
-If you are the vikings have 2 cities in Norway, Sweden, Finland and Denmark (only one here is needed), have no religions in your cities and have pagan temples all over the place, you should be able to reform the norse faith. A new religion pops up in all your cities named "Norse Faith". All your cities convert to Norse and the shrine is not only an average shrine, but also an AP.
-If you are the mongols and you succesfully overrun all Russia, China and Central Asia, AND the area known as mongolia has no religions and has pagan temples all over the place, you get to reform the Tengri faith. Same as above.
-If you are the aztecs and unify all of Central America before the euros kick in and have pagan temples all over the place, you get to reform the mesoamerican faith. Same as above.
-If you are the greeks, survive 600 A.D, have no religions, control Greece and have pagan temples all over the place, you get to reform the hellenic faith. Same as above.
Also 100th post!