Hi I have my stickman with bones etc in blender. I want to use him in my WPF/C# application to make some simple app like shaking hand or move leg. I found some graphic engines but they cost a lot, is there any free solution to import stickman from blender and make some simple animation ?
Check out Unity.
A quick search reveals you can import files from Blender to it: http://docs.unity3d.com/Documentation/Manual/HOWTO-ImportObjectBlender.html