What system was developed by Margaret Weis Productions was used in a game based on the Supernatural TV series?
Cortex System The Cortex System is a generic RPG system based on the "Sovereign Stone System ", and was developed by Margaret Weis Productions, Ltd for the Serenity Role Playing Game. It was subsequently used for their licensed "Battlestar Galactica" and Supernatural RPGs, and brought out as a stand-alone system in the "Cortex System Role Playing Game" book (also called the "Cortex Classic System Role Playing Game"). Serenity, using the Cortex System, was the 2005 Origins Award Gamer's Choice Role Playing Game of the Year.
System Shock 2 System Shock 2 is a first-person action role-playing survival horror video game for personal computers. The title was designed by Ken Levine and co-developed by Irrational Games and Looking Glass Studios. Originally intended to be a standalone title, its story was changed during production into a sequel to the 1994 PC game "System Shock". The alterations were made when Electronic Arts—who owned the "System Shock" franchise rights—signed on as publisher.