"Mayday Mayday. There is a huge wave of zombies invading the base. Need immediate reinforcement to protect the city"

The world has been changed and people are turned into hungry zombies. The Zombie Flood around the countries and now they are coming for your military base.
You need to stand up and protect your city from billions of scary zombies for 100 days until the reinforcement comes to support.
Become the zombie killers and wipe out all the zombies standing in your way.
Shoot them up, and upgrade your weapon and tower. Enhance your base military durability, and unlock new towers with bullets to eliminate more zombies. Let them know who they are messing with.

Feature
- Endless challenges and zombie
- Upgrade military base feature
- Building all kinds of towers to eliminate zombies and enhance them with different power

What are you waiting for? Pack up your stuff and let's kill.

// Option A //

To download Zombie Survival: Defense War Z mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Zombie Survival: Defense War Z mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Zombie Survival: Defense War Z from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Zombie Survival: Defense War Z in HappyMod App.