Games/Fifteen/MainPage.xaml
Games/TwoZeroFourEight/MainPage.xaml

Games/Fifteen/MainPage.xaml.cs
Games/TwoZeroFourEight/MainPage.xaml.cs

Games/Fifteen/App.xaml.cs
Games/TwoZeroFourEight/App.xaml.cs

Games/Fifteen/GamePage.xaml
Games/TwoZeroFourEight/MainPage.xaml