I, for one, make my physical workspace disappear from my view as much as possible. When I'm at my desk, 99% of what I see is my screen, 1% goes for the occasional look at the tea cup.
What's the deal with this videogamey bullshit you're proposing? Why would anyone want to participate in this?
First thing I'm doing is installing an adblocker/augblocker to byoass this sort of thing.
Dude, it’s to prevent people from interrupting you when you’re trying to work. It would literally be designed to keep shitty coworkers like you away from my desk.
I don't want to annoy people/be annoyed, either: if you want to be left alone, put up a sign. But you can't force people to participate in a virtual fantasy dragon battle- they'll just refuse and look at you weird!
No room, or need, for decorations and fluff.