opensim-SC is a fork of OpenSim, and OpenSim is a clean room fork of
Second Life.  They are all 3D virtual worlds that are open, users can
create their own content, these are not games.  Second Life is a
proprietary server, with open source viewer.  OpenSim is an open source
server that works with Second Life viewers.

See doc/index.html for details.  INSTALL.md for installation
instructions.  Differences.txt for the differences between OpenSim and
opensim-SC.  coderDocs/ for the coder level documentation.