From Magic Vacuum:
Cortex is an award-winning tabletop roleplaying game system that traces its origins back to the Sovereign Stone System in 1999, and the Serenity RPG in 2005, from which it takes its name. Over the next five years it appeared as the engine powering a series of other licensed RPGs, at which point it was rewritten from the ground up as Cortex Plus. Various iterations of this newer system were used in RPGs based on Leverage, Smallville, Firefly, and Marvel Heroic Roleplaying.
Cortex Prime is the newest version of this much-loved set of game rules, refined and redesigned by Cam Banks under license from Margaret Weis Productions. It embraces its roots as a means of adapting your favorite movies, television shows, and comic books, while emerging finally as a truly multi-genre modular roleplaying game in its own right.
Orc revolutionaries! Giant mecha! Swashbucklers of the far future! Hard-boiled police detectives! Whether you’re a fan of genres and genre mash-ups, any of the older Cortex-powered games, or you’re just looking for a tabletop game system you can customize to your own specifications, Cortex Prime is primed for you.
