Engadget has details on how Valve is adding support for Occulus Rift VR headsets to Team Fortress 2 as an experiment in the VR support they've been playing with. Here's word: "No money changed hands; Oculus provided development kits, and Valve's providing Team Fortress 2's VR Mode. The casual nature of that relationship is reflected in Valve's attitude about releasing the new mode -- Team Fortress 2's VR-enabling update in the coming weeks is essentially a giant beta test in which Valve will measure and analyze the way TF2 players interact with virtual reality hardware."