When Greenheart Games released their very first game, Game Dev Tycoon (for Mac, Windows and Linux) yesterday, they did something unusual and as far as I know unique. They released a cracked version of the game, minutes after opening their Store. The pirated copy was completely same as the real copy, except that after a few hours into the game, players started noticing widespread piracy of their games in the game development simulator.

http://games.slashdot.org/story/13/0...ack-at-pirates