YOu clearly don't understand how market research works. If there is an existing product or service that performs the task you're looking to provide/produce and nobody is paying for it then it's clearly not a viable product/service for that market/demographic.
Let's give an example: I want to sell cel phones to the Amish. First step is looking to see if anyone else has tried that. If they have, I look at how well they did with that market. If they haven't, I look into why. In this case, the reason they'd be unsuccessful is that the Amish market doesn't buy cel phones for religious reasons. Thus, my market research shows that a cel phone shop in Amish country would be a bad idea.
So called hardcore mode with the City playerbase, i.e. the target market is a similar nonstarter.