On the advice of Sonereal I'm going to tell you a bit about the upcoming MIOT II: The Revenge of Malthus in order to generate a bit of interest so it doesn't get buried by the hordes of new IOTs that are arising.
MIOT 2 will be played on the original Iron and Blood map with each player initially picking one territory.
This initial territory selection will be one of the most important choices you make in the entire game; picking an area that lends itself to the development of agriculture will see you much more likely to advance in development. Whereas picking an area of bountiful natural resources such as Amazonia will be useful for many burst benefits but your nation may be forced to take a back route through the DTM. Although this choice is key I've tried to make different starting positions equally as viable and balanced.
After picking your starting territory there will be a small update where the Birth Rate, Death Rate and natural increase of your population will be revealed. Here you will also be notified of any regional bonuses that immediately take effect. After this you will be prompted to pick a government type. This option will be limited by the Birth and Death rates and this choice too will have a large effect on the game as a whole. At this point the first proper update will occur...
Here all nations will be placed at the beginning of the DTM in the first stage (Which will be called Very Early Stage 1) This represents your nation is a proto-civilization existing maybe as tribes on nomads or similar. The choice you made with your government will now take hold as you can try and enforce a more centralised government or allow the tribal lifestyle to continue. These decisions will affect your Rural-Urban population mix and your Centralisation score. From this point on you will be prompted each turn to make decisions about your nation's government or way of life which will affect these values as you attempt to shape your nation to the way you want. Further government and lifestyle choices will bring another variable into the mix which will also be rather key. This is the class structure of your nation, it is divided between Upper, Middle and Lower.
At the beginning of the game your population will likely be a fully decentralised, fully Rural and fully lower class nation with high Birth and Death rates. Then you come in, and this is what MIOT is all about; managing populations, balancing resources and trying to shape your nation the way you want it to go. However sometimes the way you want to go may not be the easiest path, may not be what the people want, may be interrupted by natural catastrophe, may be unsustainable...
In short:
At the beginning of the game you pick a territory. Then you pick a government.
5 Key values - Birth Rate, Death Rate, Centralisation, Rural-Urban and Class Structure
More will be revealed with each step along the road to development.