What setting was used in the generic science fiction role-playing game (RPG) based on the "D6 System",  that was derived from  a role-playing game set in the "Star Wars" universe?
Star Wars: The Roleplaying Game Star Wars: The Roleplaying Game is a role-playing game set in the "Star Wars" universe, written and published by West End Games (WEG) between 1987 and 1999. The game system was slightly modified and rereleased in 2004 as "D6 Space", which used a generic space opera setting. An unrelated "Star Wars" RPG was published by Wizards of the Coast from 2000 to 2010. Since 2012 the official "Star Wars" role-playing game is another unrelated game, published by Fantasy Flight Games.
Serenity Role Playing Game Serenity Role Playing Game is a science fiction role-playing game released in 2005 and set in the universe of the movie "Serenity". It was produced by Margaret Weis Productions, Ltd, and its mechanics were the first iteration of the Cortex System. It won an Origins Award for best RPG in 2005 and Margaret Weis' license came to an end on January 31, 2011.