I'm planning to do a small submod about more realistic 4 turns per year games.
- Recruitment: As far as I know, training of a line battalion in the era was about 2 months. So recruitment times will stay the same.
- Constructions: I think construction times are also OK gamebalance wise and quite realistic for 4 turns per year as they are. No changes planned there.
- Tech: I play with x2 in 2tpy. So I'll just play with x4 in 4tpy. Problem solved.
- Town wealth growth:
That's the gamebreaking problem.
4 turns per year with the existing town wealth growth rates (buildings, techs, ministers) would cause too fast economic growth.
So, I plan to reduce the town wealth growth rates by half. So town wealth growth would be close to what it would be in 2tpy.
- Population growth: Again, this needs twinking so there's not unrealistic population growth in the early 18th century. I plan to use square roots of population increase bonuses for farms etc in order to again have the same population growth in the same timeframe.
- Religious conversion: As the previous two, this will be toned down in order to reduce the impact of churches and rapid conversion.
I'll take a shot on missionaries too, but this will be softer.