I used Visual Studio 2005 to develop the game.
I used Paint.Net to create the bitmap of the castle layout.

That's it.  The text-mode library was one I'd already written for previous games, and is included inline with the rest of the source code.  The entire source fits in one file.  To compile the code, create a console application project in Visual Studio 2005 and add the Castle.cpp source file.  That should be all that you have to do.

Thanks!

Anthony Salter