The history you know is not necessarily true.
In 1944, the Allied Forces landed in Normandy, now referred to as D-DAY.
Evil scientists used weapons that could change the weather, which lead to the battles in Normandy failing in the storm.

In 1945, the Nazis set off an experimental Antimatter Bomb, destroyed most countries in the world, and destroyed social rule.
This day is called Zero Day, Z-DAY in short.

In this new world, evil forces seek to conquer all humanity, and none dare oppose them… Except for those with the "hearts of heroes!”

Prepare yourself for the hottest free MMO of 2019! As a Commander in hostile territory, you must build your army, fortify your base, make friends, and take out enemies while trying to survive a doomsday war zone.


World War! Hold your head high and march bravely onto a battlefield of global terror! Amid the evil forces, there lies the chance to claim Presidential power and glory!

Alliances! Make friends and build relationships with your allies. You’ll need to work together to defeat the Commandant and storm the Bastion!

War Heroes! Gods of military will help you out to develop and battle. Challenge the roguelike expedition and get your war heroes trained up!

Destroyers! Death from above. A legendary Aircraft of devastating power. How will you customize yours?

Supersoldier! Explore the Abandoned Facility with your reformed mechanization soldier, and compete in the arena!

Competitions! More than PvP, join the Region vs Region, Alliance vs Alliance, and the Northern Front events across multiple regions!

Chat! Connect with thousands of players from around the world in live, real-time conversation with the easy translation feature.

Strategy! Manage your resources, train your army, and research vital skills. Understand your enemy and strike strategically!

Building! Build yourself an Empire strong enough to survive the war to end all wars.

Epic Story! Fresh immersive storyworld packed with terrifying Invaders and stunning HD graphics.

Z Day. No more rules.

Are you having problems?
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Terms of Service:

The price of the monthly subscription is $29.99, and lasts for 30 days. After purchasing, players will get exclusive privileges in game.
Please note:
1. Payment will be charged to your iTunes Account at confirmation of purchase
2. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
3. Your account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
4. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the your Account Settings after purchase

PLEASE NOTE: Z Day is completely free to download and play, however, some game items can also be purchased for real money. If you don't want to use this feature, please disable in-app purchases in your device's settings. A network connection is also required.

What’s New

Version 2.3.0

What´s NEW:
- Hero Expeditions Achievement System and Plunder Function!
- New Holiday Events!

- Main UI Optimizations
- Daily Reward Optimizations!
- Adjustments and Optimizations for missions and starting times

Ratings and Reviews

4.3 out of 5
1.3K Ratings

1.3K Ratings

VenoFighter02 ,

Brilliant game, really addictive but..

This game is actually fantastic, usually these types of games were you build an army and attack other people are all the same but this game is extraordinary, it has all the features a game like this should have, a good back story a main cause too keep you playing an awesome community and really good, friendly developers, other games like it should take notes however the picture featured for the app and the ad for the game is very differ to the actual game which does put a lot of people off, when I started playing the game I thought it’d be like the photos but only 1/4 of the photos represents the true beauty of the game which is a shame, but fantastic game well done and thank you....

Developer Response ,

Hello Commander,
We are thrilled to hear such opinion from our players. Since your suggestions help us shape future developments, please consider also sharing some with the 'Help & Support' service.
Thank you for your support, Z-Day team.

Kaloolllll ,

Dubious play

I would say initially this game was enjoyable, friendly and above all fun. Unfortunately over the last few weeks it has become apparent that the developers or those involved in the game have made it no more than a money making machine. Impossible alliance players with impossible achievements and a ' pay to play' attitude have genuinely ruined this game. Before you purchase anything, look on the alliance chat and look for yourself. I am sure the reply will be its a multi player game and there are players of various levels. But in all honesty it's not. Personally, I would say avoid.

Developer Response ,

Hello Commander,

We are sorry to learn you feel this way. Please note, we offer a free to play experience and if players choose, they can purchase certain non-exclusive items to advance faster. You are welcomed to ask from some tips on the gameplay from our Support service.
Thank you for your understanding, Z-Day team.

Surgical Monkey ,

Excellent MMO

At first I was a bit wary and concerned that this game would be similar to many other games, but after playing it, it’s completely changed my mind. This MMO game is dynamic and to the point of being addictive.

The regions within the game are full of exploration, threats and even mysteries. The community’s within regions are friendly and always happy to support a new player. Battles may be brutal... But they’re fair. The add-ons within the game are cheap and affordable, and the game doesn’t persist you to buy add-ons.

This is definitely a MMO everyone must play.

Developer Response ,

Hello Commander,
We are thrilled to hear such opinion from our players. Since your suggestions help us shape future developments, please consider also sharing some with the 'Help & Support' service in your Base HQ.
Thank you for your support, Z-Day team.


KingsGroup Holdings
252.2 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Arabic, Bengali, Bulgarian, Catalan, Chinese, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Latvian, Malay, Malayalam, Marathi, Norwegian Bokmål, Persian, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese

Age Rating
Rated 12+ for the following:
Infrequent/Mild Horror/Fear Themes
Infrequent/Mild Cartoon or Fantasy Violence
Infrequent/Mild Realistic Violence
© KingsGroup
In-App Purchases
  1. Daily Gift Pack(mini) £0.99
  2. Pouch of Gold £0.99
  3. Sack of Gold £9.99


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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