OpenFrag is an Open Source, multi-platform game. It plays in a medieval environment where Orcs and Humans fight to the death in a multiplayer session. Compile instructions and dependencies can be found on the following wiki page: http://wiki.openfrag.org
AdAge4 is a content module for the gCraft MMO Engine. gCraft can also be found within this project. gCraft will be a generic engine programmable in Lua/XML to provide an easy to modify gaming environment.