Tyrian purple to be 6,6′-dibromoindigo, derivative of indigo dye that had previously been synthesized in 1903. However, it has never been synthesized commercially. In 1998, through a lengthy trial and error process, an English engineer named John Edmonds rediscovered a process for dyeing with Tyrian purple. He researched recipes and observations of dyers from the 15th century to the 18th century. He explored the biotechnology process behind woad fermentation. After collaborating with a chemist, Edmonds hypothesized that an alkaline fermenting vat was necessary. He studied an incomplete ancient recipe for Tyrian purple recorded by Pliny the Elder. By altering the percentage of
Tyrian (video game) released in 2007 Tyrian and its assets as freeware, along with some Game Boy and Game Boy Advance versions. Following that announcement, in April 2007 Daniel Cook announced the free availability of his Tyrian artwork (not including the later work for the Game Boy Color edition and for Tyrian 2000) under generic liberal terms of the open content Creative Commons Attribution 3.0 License. Since then the community development happened on a bitbucket repository with many ports for many mobile and desktop computing platforms. The music of "Tyrian" was created by Alexander Brandon with additional music by Andras Molnar, and is