The "Virtual Universe" is a realistic, three-dimensional cyberspace and virtual reality simulation. People can meet, interact with each other, build houses and whole worlds, simulate workflows, test designs, and much more. Due to its extensive programming interface, this virtual reality environment can be used for scientific and engineering tasks such as simulation and visualization applications. License: Freeware Changes:
Several instances of non-free code were replaced in order to change the license to GPL for non-commercial use. Worldserver makefiles for Linux and Windows have been added.

More...