How could it possible know about all of that room geometry. Also, how is this better than playing a game using VR without AR? Why would I want to play in my office or home when the game could make its own level...
A complete lack of clear disclosure that this is not a concept video makes me believe that this must be just concept video. If that's the case it's too bad. When startups starts shipping concept videos instead of a product, their days are usually numbered.
They've been in stealth mode all this time and all they can come up with is a completely generic, implausible VR scenario. Yet another example of the way VR is pure hype.
AR so real that your augmented gun will actually recoil!