FlightGear Flight Simulator: free open-source multiplatform flight sim
Earth orbits and satellite coverage display in 3D on your laptop.
LDraw™ editor for LEGO® style digital building instructions.
3D Engine c++
An interactive viewer for three-dimensional chemical structures.
3D fractal rendering software
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Tools to process and visualize scientific data and images
Interactive 3D Layout Viewer for GDSII
DirectX 8 to OpenGL wrapper for legacy apps and portability
A real-time 3D Engine written in Ada
Doing 3D with Tcl