Build a Protective Base for Doomsday Survival

Build a protective base for doomsday survival. Completing tasks given by the system under doomsday conditions will trigger rewards. After completing tasks given by the system in a doomsday survival environment, you will obtain better or even more food supplies. The task condition is to give you as much experience points as you kill monsters, and the materials obtained will be doubled to you. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.