I am fairly certain that we have all read the pros and cons of the theoratical presence of multiplayer in Galactic Civilizations 2, and so I won't try to revisit that here. Instead I would to pose the question of, if one were to implement multiplayer, how would one implement it so as to maintain basic gameplay as much as possible without simplifying or "dumbing-down" the gameplay.
Diplomacy is a problem, especially the diplomacy skill stat. Players are not bound to make friends or enemies based on a diplomacy stat, and an attempt to do so would be highly limiting of strategy and diplomacy. As an alternative, prehaps a population could approve or disapprove of policies, and a player would incur certain penalties(perhaps morale penalties, perhaps political penalties) for acting against their population's wishes (especially in cases as declaring war or accepting or rejecting trade proposals). While a player could exploit this by making seemingly reasonable proposals that a player, for reasons evident to a human player, must reject, so as to cause that player to incur the political penalty. However, this would require the political ability to communicate with someone frequently (if diplomatic skill rating does no currently affect this as the super diplomat ability does then it could be changed to do so for the purposes of multiplayer) and would lose the valuable ability to communicate to a given player at a moment's notice. This solution is far from ideal, but way work.
Many other areas of gameplay would perhaps need to be changed or tweaked, from combat to victory conditions to turn order. Please volunteer your suggestions and comment on/adapt other people's suggestions, or at least point out areas that would need change that have yet to be covered.
Also, if this thread has been done before, please inform me of that. A quick check did not reveal any, but it was only a quick check.
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