NationStates is a nation simulation game. Create a nation according to your political ideals and care for its people. Or deliberately oppress them. It's up to you.
It's been a long, long time since I played it... not sure how it may have changed in the ensuing years.
Back then, it would give you one "issue" per day to deal with, and a variety of solutions. You picked the solution you liked, and it shaped your nation accordingly.
There was also a forum where sometimes there was sort of PbP where participants RPed their heads of state, etc.