Starting a City, I Really Don't Want to Raise Zerg

Yang Jingxiao was just an ordinary novelist on Blue Star. When he was twenty years old, mankind suddenly faced a huge racial challenge. Overnight, everyone traveled through another wonderful world, where only rich resources and endless zombies awaited them. A system emerged out of humanity's despair. Here, everyone owns a dilapidated city and builds their own civilization through randomly unlocked units. Someone unlocks the magician, chants the spell, and the power of magic repels the zombies. Someone unlocks the mythical beast, calls for wind and rain, and steps on mountains and rivers. Some people can only unlock ordinary soldiers, and even some cats and dogs die in the hands of zombies. Of course, there are also children of destiny who can unlock god-level weapons, Yin soldiers, intelligent weapons, etc. More importantly, the city lord relies on the unlocked troops to continuously repel zombies, obtain resources, upgrade the city, and survive in troubled times. However, he can also find other ways to plunder the supplies of other city lords. But Yang Jingxiao didn't expect that what he unlocked was the Zerg. The zombie tide that originally relied on numbers to win seemed so powerless in the face of the endless insect tide. "Congratulations to City Lord No. 418 For repelling the first wave of zombies." "Congratulations to City Lord No. 418 For finding the first secret realm and obtaining a C-level treasure." "Congratulations to City Lord No. 418 For taking the initiative to besiege the Corpse Immortal Cave and receiving the A-level reward for washing the entire army's essence and marrow." Looking at the dense swarm of insects, Yang Jingxiao said helplessly: "Oh~ I don't want to take the initiative, but the bugs are too edible XX"