Hi,
I have been learning C# from a book called 'Heads First' from Wiley.
There is a sample game of invaders at the end and the source code is available here (via CodePlex)
https://invaders.codeplex.com/SourceControl/latest
Once you load it into Visual Studio you need to upgrade the app to Windows 8.1 which is simply a case of following the onscreen prompts. I then changed the platform to Arm, and it seems to run perfectly on my Raspberry Pi 2.
You can see an image (sorry about the quality) of the game playing on my Raspberry Pi.
https://www.dropbox.com/s/u3bdziwuzpsh7 ... 4.jpg?dl=0
Let me know how you get on.