YouTube, the video-sharing site, is a great forum for promoting one’s latest project or passion. But Petri Purho, a student at Helsinki Polytechnic in Finland, discovered that posting on the site also has a downside.
Mr. Purho’s game, Crayon Physics Deluxe, was a finalist this year in a competition among student video-game developers sponsored by the Independent Games Festival. Mr. Purho told an audience of online-game instructors on Tuesday at the annual Game Developers Conference that he made the mistake of posting a video about the game on YouTube before his game was officially released. The result? Lots of copycat videos on YouTube that diminished the value of his game.
Mr. Purho’s video has been downloaded nearly one million times. —Andrea L. Foster



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