Platinum produces based on two categories: Those from the "Macroverse Bible," a multi-thousand page bible of interrelated comic characters created by Rosenberg, including titles such as "Cowboys & Aliens", and properties acquired from other companies or creators such as "Dylan Dog" and "Jeremiah" (the latter two having been represented by Rustemagić for publishing rights only, with Platinum acquiring all other rights including film and television). Rustemagić left Platinum Studios in 2000. The company's comic publishing philosophy is for the original publishers or rights holders to continue publishing their comics with Platinum Studios handling all other rights and development. Comics have been published based on Platinum's properties, continuously since inception, whether by Platinum itself or the original rights holders.