Well, I had similar Idea to convert the Board-Game "Diplomacy" for an Online Campaign as it is oftenly played online also at Forums. Original Diplomcay is set in World War one, but can be converted to what ever.

Rules:

http://www.spencersoft.com/diplomacy...cy%20rules.doc

Shortly its all about to control the Econommy-Centers, which provide one Army or Navy.

The only diffrence to the original Game was in the Order Resolution Phase, which would then be Battles. Naval Battles stay as they are, 2-1 Victory...

The Battles could be resolved by usually the Defender saves a Review-File and transmitts it to the Gameleader, so it can be checked up. After all Battles are solved, there should be in all turns the Gaining and Loose Phase done by the Gameleader/Moderator which then actualises the Map-Info and informs the players about their current might.

An fitting Map is also here:

http://www.diplom.org/Online/maps/riserome2.gif