This is a source code mod for Sauerbraten that adds a Lua scripting environment powerful enough to allow UI customization, handling of various game events, and more.
An attempt to fill in the void of affordable/open-source MMO engines written in C#. Newly updated using XNA, Lidgren and a custom physics engine. Checkout the ForgeRealm project which we have now merged with.
Realism based first person shooter running on the XreaL engine, featuring a single player campaign and online multiplayer gametypes
Discontinued on this engine, feel free to use the code.