Fur Trade Theme

Not much in the way of mechanics yet but I think the Canadian fur trade would be a cool theme.
You are a Canadian voyageur travelling by canoe along the rivers of Canada. You must deal with the Native groups to get furs, trading them goods like guns or tools. You must also set up trading posts and explore the continent. Your goal is to push your rivals out of business and establish a monopoly. Watch out for hostile Native groups though, no amount of furs is worth being dead.