there is apps for tips and tricks but not the real game

You can find tips on Troubleshoot Windows Store apps on Surface by visiting microsoft.com/surface/en-gb/support/apps-and-windows-store/cant-find-or-install-windows-store-apps

Unfortunately, no. Although you can download apps that give you walkthroughs, tips, etc.

There is more than one website that you can check out for tips and information on fitness and health. You can even download fitness apps on your smartphone that will track your calorie intake, or suggest healthier food alternatives.

This website, http://www.adobe.com/apps, should be able to help you. They will be able to give you tips on how to create your app as well as help you market the app.