Seth [Truer Words] rates Utopia from a 'groupware perspective':

This game is excellent! There are virtually no graphics, other than some very large icons and the banner ads that support the game. It's a text-based RPG where you're supposed to build a "province" in a "kingdom". You work along side the other provinces in your kingdom (up to 24 others), and eventually go to war with other kingdoms.

Here's the opening blurb on the Utopia site:

Join over 60,000 players and experience the world's most popular interactive webgame! The Utopian Age of Conflict runs from October 27th into January! Join in and get involved in one of most unique and exciting experiences on the internet

Looks interesting. Something for the Christmas break.