The Star Wars Role-Playing Game is a d20 System-based role-playing game set in the Star Wars universe. The game was written by Bill Slavicsek, Andy Collins and JD Wiker and published by Wizards of the Coast in late 2000 and revised in 2002. In 2007, Wizards released the "Saga Edition" of the game, which made major changes in an effort to streamline the rules system. The game covers three major eras coinciding with major events in the Star Wars universe, namely the Rise of the Empire, the Galactic Civil War, and the time of the New Jedi Order.