YES. Do it. It is HUGE! Imagine the MONEY people could save by not doing something wrong 500 times. Were talking HUGE amounts of money and the potential for permaculture to be intelligently rollef out worldwide.
You could sell it to PDC's, Architechts, Farmers, Schools, the list goes on. Permaculture is the #1 most important way to save the world, and its incredibly complex.
As someone readying to buy land, I would definately pay to use a design simulator so I can work with practice properties. Who knows what the landscape will be like where anyone finds land. Who knows what to Look for? With this you could test a bunch of landscapes and collect SO much data.
Its all in linking the data in the game to data irl.
Oh and if you could work with some scientists to create a realistic alchemical framework for the soil microbiota, I will personally recommend you for a Peace Prize or something XD