How to use the Blackfield resource mining permission card in the Seven-Day World. Many players have asked for this guide recently. Let’s explain it in detail for everyone. Let’s take a look.
Players first come to the factory building marked by the smelter pollution site camp below the Dirty Water Camp.
The specific location is as shown in the figure, and click to interact with the machine that appeared earlier.
On the interactive page, select the permission card to use, and click Start Defense below.
During the defense period, monsters will continue to attack you. Defeating monsters to defend can obtain certain supplies.
