Revenue is a rough estimate from public install counts × genre ARPD — order of magnitude only.
The history you know is not necessarily true. In 1944, the Allied Forces landed in Normandy, which is now referred to as D-DAY. Evil scientists used weapons that could change the weather, which led to the D-Day 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, or Z-DAY for short. In this dark new world, evil forces seek to conquer all humanity, and none dare to oppose them... Except for those with the ""hearts of heroes"" who are willing to give their lifes to stop the zombie apocalypse! The evil captain is already searching for the Antimatter, a compound with an infinite power of destruction. If nobody stops him, he will erase the entire human race and turn every human being into an undead zombie. It is time to act with strategy in this war MMO game! Build your heroes army, fortify your base, make friends, and take out the enemy assault while trying to survive a zombie PvP war full of adrenaline! Let the survival heroes battle begin: • Rebuild and fortify your city and contain the zombie invasion, repair buildings and farms alongside your base and military centers in this survival strategy MMO! • Multiplayer PvP World War! Hold your head high as a commander and march bravely onto a battlefield of global terror to claim glory! • Army Alliances! Make friends and build relationships with your allies. Work together using different strategies to defeat the assault of the evil Commandant and storm the monster Bastion in this RPG! • War Heroes! Gods of military will help you out to battle with strategy. Get your war heroes trained up! • Destroyers! Death from above. A legendary Aircraft of devastating attack power! Survive the zombie invasion at all costs! • Supersoldier! Explore the Abandoned Facility with your mechanization soldier and compete in the battlefield arena! • Multiplayer battle competition! More than PvP, join the Region vs. Region, Alliance vs. Alliance, and the Northern Front events across multiple regions! • Chat! Connect with other players from around the world in a real time conversation! • Strategy multiplayer MMO RPG! Manage your resources, train your soldier army troops and develop the heroes defense and attack tactics. Understand your enemy and strike with strategy! • Building! Build yourself an Empire strong enough for shelter to survive the war to end all wars in the MMO battlefield. • Epic Survival Story! Fresh immersive horror fighting storyworld packed with terrifying zombie invaders! Only ONE war alliance can claim the legitimate power to rule! Kill zombies, build military army troops, train heroes and form human alliances in this strategy MMO! Revive civilization as a zombie hunter accomplishing every RPG mission! Your soldiers are waiting. The zombie plague is just the beginning. YOU are a war hero in this invasion doomsday. Are you ready for the fight, Commander? SUPPORT: Are you having problems? support@funplus.com Privacy Policy: https://funplus.com/privacy-policy/ Facebook: https://www.facebook.com/ZDAYGame/ Terms of Service: https://funplus.com/terms-conditions/ NOTE: Z Day is a completely free to download and play survival MMO. Some game items, however, can also be purchased for real money. If you do not want to use this feature, please select password protection for purchases in your Google Play Store app. A network connection is also required. Z Day. No more rules. Don't wait, get your adrenaline pumping and ACT as a hero in this endless war! Prepare yourself as a Commander in the battlefield and fight with strategy the many faces of death in a survival MMO full of heroes!
Modeled estimate, not a reported figure. How we estimate →
How many people have installed this game, as the storefront reports it. This number is worldwide — unlike the price, the same package answers with the same install count in every market we asked — so it carries no country. Each source below is a different kind of number and they are never drawn on one axis.
Aug 12, 2026 — Sep 18, 2026 · 38 readings
Google Play shows “10,000,000+” on the store page.
Play publishes a precise install counter alongside the rounded step users see on the store page. This is that counter, worldwide, as it stood each day we asked.
Of the eight storefronts we track, only Google Play publishes an install count we can read. Where a store publishes nothing of the kind, this panel shows nothing rather than a zero.
About
The history you know is not necessarily true. In 1944, the Allied Forces landed in Normandy, which is now referred to as D-DAY. Evil scientists used weapons that could change the weather, which led to the D-Day 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, or Z-DAY for short. In this dark new world, evil forces seek to conquer all humanity, and none dare to oppose them... Except for those with the ""hearts of heroes"" who are willing to give their lifes to stop the zombie apocalypse! The evil captain is already searching for the Antimatter, a compound with an infinite power of destruction. If nobody stops him, he will erase the entire human race and turn every human being into an undead zombie. It is time to act with strategy in this war MMO game! Build your heroes army, fortify your base, make friends, and take out the enemy assault while trying to survive a zombie PvP war full of adrenaline! Let the survival heroes battle begin: • Rebuild and fortify your city and contain the zombie invasion, repair buildings and farms alongside your base and military centers in this survival strategy MMO! • Multiplayer PvP World War! Hold your head high as a commander and march bravely onto a battlefield of global terror to claim glory! • Army Alliances! Make friends and build relationships with your allies. Work together using different strategies to defeat the assault of the evil Commandant and storm the monster Bastion in this RPG! • War Heroes! Gods of military will help you out to battle with strategy. Get your war heroes trained up! • Destroyers! Death from above. A legendary Aircraft of devastating attack power! Survive the zombie invasion at all costs! • Supersoldier! Explore the Abandoned Facility with your mechanization soldier and compete in the battlefield arena! • Multiplayer battle competition! More than PvP, join the Region vs. Region, Alliance vs. Alliance, and the Northern Front events across multiple regions! • Chat! Connect with other players from around the world in a real time conversation! • Strategy multiplayer MMO RPG! Manage your resources, train your soldier army troops and develop the heroes defense and attack tactics. Understand your enemy and strike with strategy! • Building! Build yourself an Empire strong enough for shelter to survive the war to end all wars in the MMO battlefield. • Epic Survival Story! Fresh immersive horror fighting storyworld packed with terrifying zombie invaders! Only ONE war alliance can claim the legitimate power to rule! Kill zombies, build military army troops, train heroes and form human alliances in this strategy MMO! Revive civilization as a zombie hunter accomplishing every RPG mission! Your soldiers are waiting. The zombie plague is just the beginning. YOU are a war hero in this invasion doomsday. Are you ready for the fight, Commander? SUPPORT: Are you having problems? support@funplus.com Privacy Policy: https://funplus.com/privacy-policy/ Facebook: https://www.facebook.com/ZDAYGame/ Terms of Service: https://funplus.com/terms-conditions/ NOTE: Z Day is a completely free to download and play survival MMO. Some game items, however, can also be purchased for real money. If you do not want to use this feature, please select password protection for purchases in your Google Play Store app. A network connection is also required. Z Day. No more rules. Don't wait, get your adrenaline pumping and ACT as a hero in this endless war! Prepare yourself as a Commander in the battlefield and fight with strategy the many faces of death in a survival MMO full of heroes!
Stats
Sums Google Play only; App Store publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
Google PlayYou are here | Free | 123.2Kratings | 71% | — | $56.7M |
| Free | 6Kratings | 83% | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Media
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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $2.6B | 61.3M | 90% | Free | |
| $1.9B | 5.7M | 74% | Free | |
| $1.9B | 41.7M | 89% | Free | |
| $1.9B | 9.2M | 90% | Free | |
| $1B | 3.2M | 96% | Free | |
| $649.2M | 831.2K | 81% | Free |
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| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $56.7M | 590.2K | 73% | Free | |
| $56.8M | 713.6K | 87% | Free | |
| $56.8M | 719.9K | 77% | Free | |
| $56.9M | 333.7K | 91% | Free | |
| $56.9M | 239.6K | 90% | Free | |
| $56.9M | 326.3K | 82% | Free |