http://www.erepublik.com/
And yes, I saw that there's a topic in the Polish (I think) section, but I'm way too American and uneducated linguistically for that to do me any good.

Anybody involved? You can't sign up, you have to request an invite, at which point you get an email saying this:
Thank you for registering to be one of the first Erepublik citizens. We are now on beta version. We will be progressively letting new citizens in to help us fine tune Erepublik and make history.
Meanwhile, please visit our online blog:
www.erepublik.com/blog
Thank you,
The Erepublik Team
I can't get in of course, but to a degree the concept sounds a bit familiar:
It's free
It's not time consuming
History is in your hands!
Become your country president, build the biggest virtual company in the world or become a hero by leading your country into battle. Become one of the first citizens of the Erepublik world!
Erepublik is an online social, political and economic mass multi player simulation that offers to its members virtual fame, money and power.
Seems to be a bit more aggressive as far as wars and such being built into the concept. Anyway, just curious...