Steam will support VR in very large rooms
 

If you want to play a room-scale VR game using Steam's current tracking method, you need to do it in a 13-by-13 foot area. That's fine for your living room, but what if you want more space? Don't fret: Valve has announced that SteamVR Tracking 2.0 wi...

https://www.engadget.com/2017/10/14/...y-large-rooms/