The OpenGDK project has been renamed to what it should be. It's been moved to https://sourceforge.net/projects/opengdk/ I apologize for the inconvenience and confusing it caused.
OpenGDK is short for Open Game Development Kit. It's supposed to be a plug-in BASED (it's different from OGRE. OGRE is plug-in friendly), cross-platform, open source, general purpose (2D, 3D, client, server, editor), game development kit.
Tarraclisam is a MMOG nuf said for now
An object-oriented application framework primarily designed for high-performance realtime applications, especially games. Yake abstracts interfaces between APIs and provides a wide range of general and application level functionality.