Overrun Zombies Tower Defense 17+

Apocalypse survival shooter TD

Wildfire Games Ltd

Designed for iPad

    • 4.6 • 10.2K Ratings
    • Free
    • Offers In-App Purchases



FIGHT your way through hordes of zombies. BUILD the ultimate defense. RECRUIT a unique team of survivors to ensure your victory in the fight against the undead.

Overrun throws you into a post apocalyptic world to manage a group of survivors while they are bombarded by attacking zombies in waves. Build the ultimate defense to hold them back. Use grenades, first aid kits, and other useful items to help your survivors while they fight for their lives.


A highly contagious virus has infected 99% of the population of the planet. Those that are infected become crazed, bloodthirsty monsters. As the leader of a brave group of survivors, it's down to you to prepare them to fight the hordes of zombies.

Each time you successfully complete a wave, your survivors will scavenge some loot from the battlefield. Often minor items like first aid kits and grenades but sometimes you find a real treasure like a cluster strike or napalm strike. As the waves go by you’ll eventually unlock these items to buy in the shop but it's still a great bonus.


Unlock new structures as you progress through the waves and use them to improve your defenses. The undead approach from every direction so you’ll have to make sure you’re prepared for anything.

Each wave you complete rewards you with new structures and items to defend against the horde.


Collect Z Bucks from every zombie you kill and use them to better prepare for the next wave. You can buy new items to use mid-wave such as explosives, distractions, power ups and much more. Alternatively you can use your Z Bucks to buy more defensive structures to protect your survivors from the hordes of zombies.

The weapon shop will restock its inventory every single wave, giving you the option of trading Z Bucks for a new weapon or two. Make sure you keep enough money saved up for that rocket launcher or 50.cal rifle you’ve always wanted.


New survivors will hear of your accomplishments with the zeds and may want to join your group. They will bring a weapon with them and will often have improved stats when compared to the survivors in your group. Careful though because you can only support a limited number of survivors so you may have to make a difficult choice.

You can also manage your group of misfits by levelling them up to improve their health and stats, giving them body armor, and healing them if they were damaged in the previous round. Doing so before starting a wave will give you a huge advantage as the zombies get harder and harder to kill.


Control where your survivors focus their firepower and move them out of tricky spots while they hold back the oncoming waves of the dead. Use grenades, molotovs and other useful items you have collected to help them fight off the hordes of undead.

Have what it takes to survive? Download Overrun NOW!


Note: We welcome any and all feedback during your experience to improve the game. To submit feedback please send an email to feedback@wildfire-games.com

What’s New

Version 2.60

- Fixed the invisible zombie in the Suburbs map.
- Other minor bug fixes & performance improvements.

Ratings and Reviews

4.6 out of 5
10.2K Ratings

10.2K Ratings

sphvin ,

Infinite money exploit

Hi, Just so you all know, there is and easy money exploit I found after just an hour of playing. When building, something I did was keeping me from deleting rows of items. Starting with the concrete block first, item visually disappeared and I could no longer select anything else on the ground but could still drag and place items one at a time. Also, the empty space still had the delete and rotate along with the transparent arrows around it. Had to re-open the app to fix it. Simple enough, except I noticed I had gained about 200 in cash. Once I realized I had been mashing the red delete button in frustration before hand, I tried to replicate it. Sure enough all you do is place any item, move and hold one arrow backwards in the opposite direction to multiply it and press either of the rotate or delete options causing the item to vanish. After that, every time you press delete you gain the items cost to ur funds. As the most expensive items are 1250, which you get a simple shotgun turret pretty early either way, you can see how easy it is to get stupidly far ahead with all that money. Kinda broke the game for me honestly cause it looks really good, but I’m already at 1,000,000 in cash with maxed weapons and OP operators. Hopefully this is an easy fix for you guys cause anyone who’s found this beats the game in no time. Not to mention somehow I’ve been able to gain 8 out of five followers, clearly not intended. Well, thanks for making it so easy. lol

Justout45 ,


I think that you guys have stumbled upon an idea that could change both the Tower Defense field, and the zombie shooter arena (all without going FPS) that is if you guys can work out the kinks… for example- I just got eaten alive in the tutorial because my character was not firing his weapon consistently enough to kill the first wave of zombies, and-even when he did shoot- I had no way of knowing that the shots were hitting the zombies. So maybe a better targeting system?? And I’m thinking that you maybe can add some blood to let us know the zombies are taking damage?? But again this idea is AWESOME just tighten up the graphics a little bit and add a better auto targeting system for your character, and don’t forget about the blood to show us the zombies are taking damage. All those things by Halloween and I see you guys at the top of the most downloaded list

Solomon Haarsma ,

Please fix bug devs!!!

There are two game breaking ones I’ve noticed so far such as the title menu bug (this will sometimes randomly occur-the continue button will not work at all no matter how many times I close and re-open the game the only way to fix this is to redownload which makes you lose all progress||the other bug is the endless loading screen bug-if you get this bug every time you try to “continue or start a new game” you will get stuck in an endless loading screen which again the only way to fix is redownload the game)
This is quite frustrating I really enjoy this game but I do not enjoy losing all my progress a lot I can deal with crashes that’s fine but those other two bugs really need to be fix in the next update please

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