The Linear D6 version is a significant expansion of the original material, including a more fully developed setting, a monster manual and game mechanics, all of which were previously provided by the core D20 System rule books.
The Linear D6 version is a significant expansion of the original material. This was including a more fully developed setting all of which were previously provided by the core D20 System rule books. A more fully developed setting is a monster manual. A more fully developed setting is game mechanics.