If you're looking for something a bit different, besides the usual Diplomacy game (although I have one of those available as well), I have three other game openings in Eternal Sunshine.

Bourse - This is an economic game which runs alongside s Diplomacy game. Players buy and sell the currencies of each of the seven major powers, attempting to capitalize on the transactions of the other players. Black press is permitted as well.

Deviant Diplomacy - This is a tremendously fun variant where the players get to propose and vote on rule changes each turn. Some hobby members list games of Deviant Diplomacy they played in postal zines like benzene or Perelandra among their favorite Diplomacy memories.

Chaos - A 34-player variant, simply a way to have fun and gang up on people.

All these games are being run postal speed (one turn per month) so while the time commitment is long-term, the monthly time requirements are short. If you'd like to see the rules to any of these, you can find them in Eternal Sunshine #23. ES is available in html and pdf format at:

http://www.whiningkentpigs.com/DW/

If you'd like to sign up for any of them, let me know!