We also discussed the method of funding for the game. We both decided against the model of public gameplay. Problems with decision making among multiple users seemed ill-advised. But the idea of the system working off of purchases made at partnering businesses seems solid. The user would make purchases at a business, the app would detect that they were there and the appropriate amount would be added in in-game cash. The cash would then be used to progress through the above building scenario. Donations could also be taken from friends or given directly to HRTN whom I'm basing this model on.