Hey guys some of you might remember me I was part of this region and the United Commonwealth a couple of months back.  I'm no longer doing much with nationstates, but I stumbled across this recently and thought that you guys might be interested:

http://nationsgame.net/

It's similar to nationstates, but with a structured system of resources/expansion/growth/combat etc.  It wouldn't lend itself well, I think, to the region-type group structure that nationstates offers, and would be pretty much impossible to adapt to a map, but it's a fun little time-waster.