There are many people out there claim that Assassin’s Creed II data files from Ubisoft had been stolen and they show the download links.
But, the reality is that the files on the links do not contain Assassin’s Creed II, instead they contain Assassin’s Creed I with the demo of Assassin’s Creed II.
So just wait until November to play the real game , OK?
Anyway, in case you are just curious or hard-headed, these are the download links:
Link removed.