Once in a while, three Challenge Tasks are posted in the shelter. Take on the tasks proposed by the residents, complete the challenges, and earn rewards. Example challenges:
- Clear 100 zombies outside the shelter to enhance safety.
- Join in the arena and defeat 40 attendees.
- Join a survivor alliance and defeat 5 zombie invaders with your allies.
Each of the above three tasks can be completed once a day. New tasks will be posted a short while after the old tasks have been completed.