Games are all about choice anymore, but how can you make this sort of choice apparent in marketing? People see a paper ad, watch a TV commercial, or see a video on YouTube. These are typically pretty one sided story telling. Ahh but not all is how it seems. Since YouTube does allow you to add fields that can be clicked on it is possible to have a choose your own adventure YouTube trailer. Hence EA has given us the "Crysis 3 Official Single Player Interactive Demo". Not the best of all titles, but if you have 20 minutes to kill you might as well relive all those choose your adventure books.