Tyrian purple the Iles Purpuraires at Mogador, in Morocco. The sea snail harvested at this western Moroccan dye production facility was "Hexaplex trunculus" (mentioned above) also known by the older name "Murex trunculus". This second species of dye murex is found today on the Mediterranean and Atlantic coasts of Europe and Africa (Spain and Portugal, Morocco, and the Canary Islands). The colour-fast (non-fading) dye was an item of luxury trade, prized by Romans, who used it to colour ceremonial robes. Used as a dye, the color shifts from blue (peak absorption at 590 nm, which is yellow-orange) to reddish-purple (peak absorption at
Tyrian (video game) head by Mark Rein. At this time, Tim Sweeney approached the team and informed them "Tyrian" was to be published as a full-fledged Epic MegaGames product. It was later released in 1995. The data cubes found in the game's Full Mode contain various references to its parent publishers, including One Must Fall 2097, Jazz Jackrabbit, Pretzel Pete (Tyrian 2000). The Pretzel Pete Truck and its weapon is a reference to the Pretzel Pete video game. Version 1.0 of the game was originally released as shareware, consisting of episode 1 of the game. Version 1.1 was the first published as registered