Here is a Frequently Asked Questions that will help you find (almost) all the answers to the questions you/your players have about the challenges!
Other topics
We've organized the challenges by category so you can find them more easily!
Food
Waste
Mobility
Biodiversity
Technology
Do It Yourself
Second life
Unclassifiable
Activism
Energy & Resources
Solidarity
Money
Upgrading skills
Legendary
Audience choice