Adds more depth, fun challenges and chase goals for factorio addicts, especially in the later stages of the game. Intended to be a high quality vanilla+ experience and the ideal version to megabase on.
The Prod Module 3 tech doesn't have the Prod Module 2 tech or the Carbon Fiber tech as tech dependencies, only Agricultural science. This could create a weird case where someone has Prod 3 unlocked but not Prod 2, or where someone has Prod 3 but not carbon fiber.