Amanita Design did this with their Machinarium Pirate Amnesty promotion: http://machinarium.net/blog/2010/08/05/machinarium-pirate-amnesty/ http://machinarium.

Amanita Design did this with their Machinarium Pirate Amnesty promotion: http://machinarium.net/blog/2010/08/05/machinarium-pirate-amnesty/ http://machinarium.net/blog/2010/08/05/machinarium-pirate-am... It doubled as a limited-time discount for first-time players as well.