The Source engine is a 3D game engine developed by Valve Corporation. Its unique features include a large degree of modularity and flexibility, an artist-driven, shader-based renderer, accurate lip sync and facial expression technology, and a powerful, efficient and completely network-enabled physics system.
The first public of Deathcatch mod, nothing great but initial releases usually aren't you can now see which areas we need help in and can give us a hand.
The first fully-functional Source engine SMD exporter for Blender. Supports reference, physics and animation, and has an accompanying video tutorial.