Open source cross-platform Java Visual Traceroute
ZED OS the clone of Windows XP
Open Source Solid Modeling CAD
Atari 2600, C64, Python, 3D engines and rock'n roll
Alignments in Rotating Cylinder / 3D
Scriptable frontend for media applications.
Organizing the Knowledge of Humanity
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor