How can an AI nation die if it is a huge empire?

[Globu]

If any player, at any point, has no provinces on the map with at least 1 dominion in it, that player is out of the game. Thus, a massively large empire can conceivably just get wiped out in a turn if someone pulls off a dominion kill -- stealthy preachers, massive blood sacrifices on one turn, etc.

Pretty nasty, really. But it's a cautionary tale -- take good care of that dominion and be alarmed if you start seeing a lot of black candles in your territory.

(This thread should probably be moved over to general Dom3 discussion.)

[LDiCesare]

It usually happens to EA or LA Mictlan: The AI don't make blood sacrifices, so its dominion doesn't spread and gets smothered by its neighbours or a bad random event, and they die.