In 2008, a handful of science fiction writers released a collaborative project in audio format, read by the cast of Battlestar Galactica. The product was a shared fiction series called Metatropolis where each author wrote a story based on a future world which they brought to life. The print version was released in 2009. In 2010, a second series was released, called Metatropolis Cascadia, now exclusive to audio. The entire series is read by the cast of Star Trek.