Disaster comes! Zombies are coming and unstoppable! How would you survive the enemies and threats? There is no time to waste! Let’s build your own HQ in 《Day of zombie》! Start with a simple HQ and grow into an empire with development of economy, technology, and army! 

　　By judging the prosperity of a city, it is easy to tell how strong this city is. How to build a strong city to survive then? By upgrading those critical constructions, you could have enough resource to develop powerful technology and then apply those technologies to strengthen your army. By doing this, the prosperity of your city increases and you will get achievements as well. 

　　Speaking of resources, no one denies the truth that resources affect the development of your HQ. Upgrading resource facilities in the first place seems to be the first strategy if you want to develop your HQ. Resource also affect the development of your important technology! 

　　Army supplies are required to develop your troop. Army supplies affect not only the development of your troop, but also the core of technology. Empower your own army, and you will enjoy the glory that wisdom and encouragement bring to you. 

　　By judging the level of a HQ, it is easy to tell how strong a city is. A strong HQ intimidates your enemies because it represents plentiful resources, powerful army, and helpful alliance members. When facing endless enemies, only the few best strategies would let you win!