《Day of zombie》 is a SLG, which means that player have to upgrade HQ, build an army, kill zombies, defeat opponents, and expand an empire. Technology is the No.1 force that drives production. Below paragraphs describe what is Technology. 

I. How to unlock Technology?

　　HQ reaches Lv.5 There are 17 categories of technology and will be unlocked after Research Lab reaches certain levels. 

II. Technology Categories

[Boost on Resources]

　　Lumber Processing: Each level grants 5% increase on Lumber base production rates.

　　Food Processing: Each level grants 5% increase on Food base production rates.

　　Fuel Refining: Each level grants 5% increase on Fuel base production rates.

　　Metal Smelting: Each level grants 5% increase on Metal base production rates.

　　Gold Purifying: Each level grants 5% increase on Gold base production rates.

[Boost on Soldier’s attributes]

　　Warrior: Each level increases 5% of Warrior’s Life 

　　Crossbowman: Each level increases 5% of Crossbowman’s Life 

　　Gunman: Each level increases 5% of Gunmen’s Life 

　　Chariot Each level increases 5% of Chariot’s Life 

[Boost on Soldier’s damange]

　　Warrior: Each level increases 5% of Warrior’s Damage 

　　Crossbowman: Each level increases 5% of Crossbowman’s Damage 

　　Gunman: Each level increases 5% of Gunmen’s Damage 

　　Chariot Each level increases 5% of Chariot’s Damage 

[Boost on Miscellaneous]

　　Storage Technology: Each level increases all Resource Capacity by 5%, and Storage Capacity by 5%

　　Seasoned Soldier: Each level increases 5% of Combat Experience gained

　　Building Design: Each level increases Building Speed by 5%

　　Morale Enhancement: Each level increases Marching Speed by 5%

III. How to upgrade technology?

[Constraints] 

　　Level Contraints: Research Lab Level and Reputation Level should be above Technology Level. 

　　Resource Contraints: Upgrading Technology consumes Resource.

[Research Queue]

　　If you need to schedule technology researches, you could put them in the Research Queue and technology will automatically upgrade in order without further worries. Research Queue starts at 1 slot and maxed at 6 slots depending on your VIP level. 

　　Upgrading technology greatly increases your Might to win battles.