Combined with innovative idle gameplay, this is a 3D world that will give you a totally new experience!
In this new world, only the truly strong can survive.
Five major dominate races: Mech, Bio, Gene, Alien, Mystic!
Barbarism collides with order, magic and technology blend, and a new order is formed!

What's UNIQUE:
✫Casual Idle Gameplay ✫
Automatically gather all manner of resources offline. Your job is to allocate your resources effectively!
Set formations now! Zero-tap automatic battles will keep your hands free!
✫Open Team Training ✫
5 major races, more than 150 heroes that restrain one another, hundreds of unique skills, hundreds of rare pieces of equipment in different states!
Cultivate, synthesize, recycle, and get the heroes and equipment you want most in a variety of ways!
If you're talented and knowledgeable, you'll be paired with a lineup that works best with you!
✫Compete With Players From All Around The Globe ✫
Join a guild, challenge for guild bosses, fight in a guild war, make friends from all over, and fight side by side!
Lead your strongest team into the arena, challenge and defend the opponents to keep your rank, compete with players globally!
✫Rich Game Content ✫
Idle battling, PVP arena, mysterious cavern, trial array, and skyscraper!
Rich game content, you won't be able to put it down!
✫Unimaginable Novelty Experience ✫
Explore forests, cities, outer space, underground factories, alien bases...
Traverse a variety of maps, defeating monsters along the way, challenging powerful enemies, and getting all kinds of gear and treasures!

Website:www.7piratesgames.com
Facebook Fan Page: https://www.facebook.com/nonstopgamemobile/
Customer Service: https://sevenpiratesgames.helpshift.com/a/nonstop-game/

// Option A //

To download City Arena: Zombie Defense mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download City Arena: Zombie Defense 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 City Arena: Zombie Defense 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 City Arena: Zombie Defense in HappyMod App.