It s a long-observed fact that the phenomenon of the YouTube let s play has benefits beyond just entertaining viewers and gradually introducing teenagers to neo-Nazism via YouTube’s algorithm. For developers, for example, getting a popular YouTuber to play their latest title can be a significant boost to sales. Ryan Clark, developer of roguelike rhythm game Crypt of the Necrodancer told the New York Times that he had seen a $60,000 boost in sales after PewDiePie showcased his game. What gets overlooked is the (perhaps unwitting) contribution these YouTubers are making to the preservation of video games.