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If you have a city, how will you power it? What are the challenges of powering a city economically and safely? Play, compare, challenge: power a city and join the debate with online energy game.

Energyville, developed using data and content provided by the Economist Intelligence Unit, The Economist Group's research arm, examines the economic, environmental and security trade-offs and opportunities associated with different energy sources. To power Energyville's homes, offices, factories and vehicles, players must balance the same competing demands faced by policymakers, businesses and consumers every day.

The game spans a period from the present day to 2030, with players managing the energy supply for their growing city through random events that affect their choices and highlight the consequences of their actions. Energyville is hosted on http://www.willyoujoinus.com, an energy discussion forum that Chevron created.

Read more: CNN