I think it'd be awesome if you could play it with others online. You know, just like Age of Empires. You could build up your area, and then, when an industrialist army or native tribe (depending on which side you chose) invades, you could fight them, and protect your land.
If they were to add an online feature, I believe that the 360 would be the best platform to choose, seeing as how XBox Live has so many subscribers.
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