When World of Goo came to the PC with no DRM, it eventually turned out that 90 percent of the people who played the game did so by pirating it. Now it looks like Machinarium—an excellent point-and-click adventure game from Czech developer Amanita Design—is sadly suffering the same fate. "We released the game DRM-free which means it doesn’t include any anti-piracy protection, therefore the game doesn’t bother players serial codes or online authentication, but it’s also very easy to copy it," Amanita's Jakub Dvorsky explained. "Our estimate from the feedback is that only 5-15 percent of Machinarium players actually paid for the game."

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