Here is another VR accessory that lets you get more out of your gaming experience. Cybershoes allow you to walk in your favorite virtual reality games. These are expected to be compatible with SteamVR, HTC Vive, and Oculus Rift platforms. You can use these for fitness training and rehab too.
Cybershoes have a special sole that allows wearers to walk while being half-way seated. More information is available here.