Build a city with the Plan It Green city simulation game from National Geographic. Register now to design and create your own energy-efficient city of the future!. Single-player Games. Multi-player Games. Co-op Games. MMO. Narrow by feature. Steam Achievements. Steam Cloud. Steam Workshop. Steam Trading Cards. Like previous SimCity games and other city -building games, players zone tracts of land for residential, commercial or industrial development. They create roads. Players have control of nearly every aspect of city management. About the Author Daniel Hertz is a senior fellow at City Observatory. Showing 1 - 4 of 4 results. In the era of Trump, institutions—and especially those that are perceived as liberal—are unpopular, and opinions divide sharply along party lines, according to a new poll from the Pew Verdienst casino servicekraft Center. The improvementsyou choose to make or not to make effect everything from the happiness of your citizens toyour cities air quality.