Source Engine-powered Garry's Mod is a robust physics sandbox, commonly used for putting silly faces on familiar Half-Life characters. And on Thursday, there will be a new way of interacting with it: Kinect.
Using a Kinect device and Kinect for Windows Runtime v1.6, you'll be able to use full-body character controls, join other players to take control of a ragdoll, and more. A video (via Joystiq) shows off some of the features in action.