Alright here's a type of game that I've recently played in real life, I think with a few tweaks that it would be a good style of game for CC. Let me know what you think. I'm still trying to think of a name for this style, so i'm open to sugestions about that too.
I was thinking that this style would be good for either more players or tournement
This version of the game should only be played if you consider standard world domination CC to be far too short a game! You can play double-Earth CC, triple-CC Risk or even-higher-ple Earth CC.
For n-ple Earth CC, The boards are positioned side by side, and Kamchatka on Earth 1 links to Alaska on Earth 2, etc., and Kamchatka on board n links back to Alaska on board 1. You use the playing pieces from all n sets, and start with n times as many armies as usual. (This can lead to some huge heaps of armies initially, but if you do pile them up, that means you're very weak elsewhere ... things soon even out a bit.) Each pack of cards is shuffled and dealt independently for each board, so you have (roughly) the same number on countries on each board to start with, but once the game has begun all n packs are shuffled together. When it comes to trading in cards, it's entirely up to the individual player which Earth each card corresponds to, so (for example) if you hold Iceland on two of the boards, and trade in the Iceland card, you can put your two bonus armies on whichever of those two Icelands you prefer. To win, a player must conquer all n Earths. Bonus reinforcements for holding a continent work as usual (ie. you need hold only one North America (not all n) to get those reinforcements), and you can claim continental reinforcement bonuses for the same continent from more than one board (eg. if you hold two South Americas and an Autralasia you can claim 6 bonus armies).
