Free Digital Sourcebooks and Supplements for the Star Wars TTRPGs!
West End Games (1987 – 2000)
The very first Star Wars Roleplaying Game, using a system comprising of all d6s (six-sided dice)
Wizards of the Coast (2000-2010)
The second Star Wars Roleplaying Game, based on Dungeons & Dragons 3.5.
The latest edition of the game is Star Wars: Saga Edition while material older than that used the system from the Revised Core Rulebook. I have yet to find the original sourcebook before the Revised Core Rulebook.
Fantasy Flight Games (2010 – 2014)
The third and most recent Star Wars Roleplaying Game, using their own proprietary dice system.
These books also mix canons between Expanded Universe and New Canon after April 25, 2014.
Callum's Cantina 