Being a bit late on the post I apologize for bringing it back from the dead, I think.
From my point of view, marriage would be a great asset for the game, but not before updating npc AI.
The finnish have a closely tied society back in the iron ages. That is, inside their own cultures, an stranger from another culture would be judged by their cultural background and situations that happened on the past, or you think your the first Kumolaiset to get to Driiik? Obviously no.
The Njerpez should need a completely new AI, launching raids into villages every now and then, adding in some quests. The Njerpez want slaves, that's about it, most of people are kept alive.
The villages structure have a sage and a chief, both with the same power within the village, being in favor with them should be really hard, as they are suspicious of outsiders, unknown people.
There should have been added diferent sets of AI codes to simulate various "personalities", not everyone is going to fight a 2,30m tall Kaumolaiset in full Iron set, HELL! no one will fight that! I wouldn't.
Since the Roman occupation of Finnland there's been documents discribing the peculiarities of the culture and "kings" of sorts, that means the very culture is well stabilished and have a strong sense of comunity.
Add in scouts on the cultural regions and maybe even some in the wild.
Let the world live without the PC interaction, let the kaumo go to driik to trade or whatever, let the village people travel around and let whole villages move to a new location based on water, and source of food,pelts(hunting game)
Family ties, make npcs to recognize who are their wife/husband, they should get offspring, they should eat, they should drink, they should freeze.
And last of all, a Family is not equal other, some have more influency, some have less.
And if you want to have some end game? Well, let the PC unite all finnish cultures togheter. But maybe, the Islanders will not like the Owl-tribe eh? xD
I know the text is big, I don't expect it all to be implemented but I'd like to see. Sorry for asking too much
@Sami