For every Round Pass used, you gain one round of doubled rewards in the challenge. The Stars you earn from completing missions, and the Stars and Trade Goods awarded for completing full Rounds are doubled.

This allows you to get the more Stars and Trade Goods for completing the early rounds of challenges, saving you some time and gas! This way, you will be able to advance further in the challenge.

Here is a complete list of doubled rewards:
  • Stars earned for completing challenge missions
  • Stars earned for completing a round
  • Trade goods earned by completing a round