According to website TorrentFreak, the most pirated game of 2009 was Modern Warfare 2, crushing all the competition. The game was reportedly downloaded 4,100,000 times for the PC and 907,000 times for the 360. As for the Wii, the most downloaded title of 2009, by far, was Super Mario Bros. Wii which was downloaded 1,150,000 times.
As far as illicit downloading itself: It's going strong, sadly. This year, the most downloaded titles more than doubled last year's numbers, equaling the growth in uTorrent users.
Please understand, pirates, if you continue stealing content in this way, eventually, the budgets of games will have to be cut, honest consumers will be forced to put up with more Draconian anti-piracy measures, and game companies will lose money. No one wants that, do they?
When you've finished contemplating the moral implications of your hobbies, click the "Source" link for the full list of most torrented games of the year.