Do you need a way to combine, well, EVERYTHING? This will! Students are transported to another established world where they must plan for all economic, environmental, social, and civil activities. It can be as easy or as in-depth as you want. It can take as long as you want. there isn't a right answer, just ones that require a great deal of planning and research. Let your student's imagination loose and you won't regret it!
Everything you need is right here!