Here are some additional systems to download. If you create a system you would like to share with others, feel free to email it to me and I will post it here along with your name! Send your systems to: roice "at" gravitation3d.com. Also, be sure to check out the new daily updated G3D System of the Day and G3D System of the Day Archive.
Binary of Binaries
4 Planet Field Visualization
Sun Earth Moon Satellite
These 3 systems are setup to show behavior at some of the Lagrange Points.
The following demonstrate some undocumented visualization types that are in the works.
6 Planet Polar Field