Carsten Fuchs has released an updated demo of
Ca3D-Engine, a modern 3D graphics engine which can be used to create a variety of 3D applications, including games, simulations, and training and architectural software. The development kit is freely available, and the DeathMatch MOD code is open-source. The latest enhancements include support for map scripting (based on the Lua programming language), new clipping and collision detection code, many enhancements to the Ca3DE World Editor "CaWE", much improved in-game console handling and configuration, and many other enhancements. Details can be found on the official
website.