The BBC has a good simulation about the role of cotton in industrializing Britain.
Players have to make decisions about where to locate machinery, who to employ, and what investments one should make.
Another good simulation is Muck and Brass, also from BBC. Like "Who Wants to be a Cotton Millionaire," students have to make decisions as the game progresses. For example, students have to decide what to do about polluted rivers as the game begins. Clean up the rivers or hold your nose and do nothing.