OpenSim + addons. This is the content that gets distributed in the d2 project.
Acoustic modems in Java and Matlab
Derivative of Singularity viewer with changes in the UI model.
Secure client for OpenSim's Hypergrid using LibOMV's GridProxy.
Forked from singularity-viewer/SingularityViewer
An experimental Snowglobe 1.5 based Second Life Viewer focusing on performance, but also including all the usual conveniences and RLVa.