Several civilizations in the game already have conditional spawns, and from what I've heard the future post-colonial civs (including America) won't spawn under certain conditions either. This got me thinking about having the European civs not spawn when certain conditions are fulfilled.
In reality, Spain, France, England, etc all "spawned" centuries after the western Roman Empire was destroyed. But in DoC you'll often find the Roman Empire survives the barbarian invasions. Usually, however, their stability will be awful; and in this case it makes sense that provinces like Iberia and Gallia might secede, their governor crowning himself King or something like that.
In rare cases, however (usually only when the player is the Romans), the Roman empire will be stable in the early middle ages, and the empire will still be strong despite the barbarian invasions. In this case it makes no sense for Iberia or Gallia to suddenly declare independence.
So what I propose is to make the European civs not spawn if a Stable or higher (or Solid or higher if that would make it too likely) Rome or Phoenicia (in the case of Spain) is holding on to their core lands.
In reality, Spain, France, England, etc all "spawned" centuries after the western Roman Empire was destroyed. But in DoC you'll often find the Roman Empire survives the barbarian invasions. Usually, however, their stability will be awful; and in this case it makes sense that provinces like Iberia and Gallia might secede, their governor crowning himself King or something like that.
In rare cases, however (usually only when the player is the Romans), the Roman empire will be stable in the early middle ages, and the empire will still be strong despite the barbarian invasions. In this case it makes no sense for Iberia or Gallia to suddenly declare independence.
So what I propose is to make the European civs not spawn if a Stable or higher (or Solid or higher if that would make it too likely) Rome or Phoenicia (in the case of Spain) is holding on to their core lands.