Some game developers — the digital-era equivalent of songwriters and authors, in many ways — have also come to see piracy as being a necessary evil, and in many cases a positive force. Markus Persson, the Swedish developer of the massively popular game Minecraft, has said that he came to see piracy of his game as a form of marketing. And at a recent music-industry conference in Europe, the CEO of superstar game company Rovio (creator of Angry Birds) said that piracy “may not be a bad thing” because it increases demand for the official version of the company’s products.