personally i think the key is to keep the real meaning of the game hidden from the audience....if this is going to work in any way shape or form as it did with the book....the audience has to be clueless to the idea that the game is in fact real.....and personally i think they can be successful if they do it right.....an example would be The Others....that was perfect execution of the same idea.....and like The Others this is a 100% character driven story....so they have to keep you involved in the characters and how they react to the situations....the good thing here is that there is plenty of awesome battle room stuff to keep an ignorant and a knowing audience enthralled....i just think they really have to balance everything nicely....and they cannot even give a hint as to what the game really is....when i first read the book i was floored when this was revealed but at the same time i understood completely