It's easier than you think to create a Windows Store app. You don't need to learn a new language to start building a Windows Store app—you can create it with what you already know:
These tutorials help you create your first Windows Store app in the language of your choice.
Use your .NET, WPF, or Silverlight skills to build a Windows Store app using XAML with C# or VB.
Take advantage of your programming expertise and use C++ with XAML to build Windows Store apps.
Know DirectX? You can develop a Windows Store app that takes full advantage of graphics hardware.