If anyone recalls my last thread about an idea on Nation RPGs from the link below one of the main issues with this concept was having an effective GM-less RPG design to have everyone more or less self policed based on an agreed set of rules.
https://www.bgdf.com/forum/game-creation/design-theory/nation-rpg
Even playing the role of a leader with absolute power there are circumstances inside your nation that is beyond your direct control. There are the basics such as making sure your people aren't starving and to levy an army large enough to ward off an aggressive neighbor and protecting trade by bandits on land and pirates at sea.
The GM-less part has been the biggest challenge in the design process and I believe there is a solution to keep everyone in check to reduce the more power-gamey aspects of it. Everyone has a nation focus based on five categories, weekly reports, monthly reports and yearly reports. One turn equals one week.
Weekly reports are mainly movements in trade routes, military operations and anything of that sort that is resolved within a week.
Monthly reports are diplomatic missions, special events and political intrigue.
Yearly reports is population, political climate, treasury and resource consumption/extraction.
Before I go any further in details what do you think of this concept so far?
There's really no set time but things start off in the early Renaissance periods to industrial revolution and possibly beyond.
It's generally a fantasy world with a steampunky flair to it.