Mhm...I don't think there's a downloadable version as there's for SHIII...
Anyway, the demo is there only to give you an idea of the game...the "real" version is another thing...
I don't know what your budget is but if you want to buy the game, I would definately suggest you to purchase the deluxe copy with the printed manual. It's a bit more expensive but those are very well spent money. The game really worths the "effort"...
