I am currently GMing a Empire Quest game here:
http://forums.spacebattles.com/threads/rise-from-the-ashes-fallout-empire-quest.251877/
What this involves for the players is that they must control a small group of survivors of the nuclear war, make the right decisions, pray to the RNG and hopefully become big enough to be its own nation. The eventual goal is for you to claim all of the Earth. The players must discuss among themselves on what course the group must take.
The current players have based their group of engineers, scientist, and survivalists within a supermax prison, where they are currently trying to understand its secrets while fending off raiders.
They are now attempting to negotiate with a potential raider party.
I thought about reading later when I wasn't as tired but totally forgot
. It seems to me that it is some kind of role-playing, but instead of role-playing a character you do it for an entire settlement and have to deal with all kind of difficulties the DM throw at you while you try to expand and grow.