[Daynarr]

I think 1%-5% yearly natural population increase would be best and least complicated. If devs think that games don't last long enough to make a difference on population increase then 1% in 1 year will do exactly that - make no difference in shorter games.

However, longer games do happen and may take for 10 years or more. Population that is mostly medieval (2 kids per family are common only in developed modern societies) and unaffected by outside events (pretender dominions, random events, pillage, etc.) would show some notable increase in population.