These are projects I work on in my free time to learn new skills or sharpen existing ones.
The 2D platformer is a project of mine in my free time just to learn a bit C#.
S.T.U.R.M. - Tool
When we finished the first version of our own role playing system I started a program to manage the characters in digital form as well as on paper. At first it was just a program that could manage one character at the time and it was written in C++. Then I rewrote it to be able to manage multiple characters saved in a XML file. I used Visual C++ (MFC) at the time with TinyXML for the file management. In the most recent version I switched to C# and used the .NET features for the file management.