A GPL. multiplayer game engine. The previous version of KADATH was being developed using OGRE (as can be seen in http://www.ngranek.com and http://bigjocker.unplug.org.ve), but had to be stoped because of a bug in the Linux implementation of PagingLandscape and the ATI drivers.
This version is being developed using jME (http://www.jmonkeyengine.com).