http://consumerist.com/2015/10/06/micro ... -hololens/
October 6, 2015
... In the game demo, invaders crack through the room’s existing walls and try to attack the user. It’s a pretty simple idea, but Microsoft says the HoloLens maps your room completely so that it knows where the walls and furniture are.
So not only do the holographic attackers interact with the layout of the room, it means that each room results in a different, customized experience for the user.
Official demo video and website - M$FT Hololens :
https://www.microsoft.com/microsoft-hololens/en-us