For game developers, we offer two products which we already use by ourself to create our games:
1. Our BlurredEngine is a modern 3D-Engine capable of realizing sophisticated graphics effects like particles, shadows and full HDR support.
2. With our BlurredGUI we offer you a small and easy to use GUI-Framework for easy integration in your existing DirectX application.
Both engines are now available for free under the MIT license as a google code project.