The mod developer Gistix released a new mode for the Portal 2, the puzzle game offered by Valve. You can combine with virtual reality in this version that comes from VR mode and experience the game with full motion controls.
Play video for mod
The mod developer named Gistix shared a video on Yutube to show how VR mode works. This video contains 20 minute hits and gives you an idea of what you can expect from this mode.