This HD application is best for Retina displays and newer devices!
An enemy army is at our gates! Lead the defense! An unknown mineral has been found in the depths of the dwarfish caverns – more valuable than gold and harder than steel. But this find quickly turned sour... The Wicked King laid siege to the deep cities and ordered their inhabitants to give him their entire supply of the wonderful ore.

Anyone who wishes to lay their hands on the dwarfs' treasures must overcome hundreds of clever traps and powerful curses standing in their way.

Gnumz: Masters of Defense is a strategy game inspired by classical fantasy. Its new system of interacting elements will reveal your tactical talents, and brute force has its place as well. Each level in the deep caverns requires an individual approach. New players and pro gamers alike will enjoy its carefully crafted balance.

Build an ideal chain of traps. Use magic and the power of the elements: earth, ice, fire and shadow.
Battle in the depths of the Iron Mountain, in the cold of the Icy Halls, in the hellish fire of the Crucible and among the secrets of the Shadow Frontier. Defeat the army of the Wicked King!

- Do battle on 80 levels of the Iron Mountain
- Premium quality graphics
- A mass of refined traps and magical spells!
- A new fantasy world with dozens of underground cities, mines and catacombs!
- A mechanic new to the strategy genre!

What's New

Version 1.0.8

Fixed errors.

Ratings and Reviews

Game will not fill the screen


The game opens in the top left quarter of the screen while the text and buttons do not. Please fix.

Not great, not bad.


It certainly looks and plays well, there are just some things that don't seem quite right. These are my first impressions after playing for just a little bit.

First, the text on the iPhone (5s) is incredibly small. It could easily be made bigger.

The tutorial makes sure you understand the idea of different colors/elements working in a specific way, but then you're only given access to one tower, so all of that knowledge isn't used on the first level. That part of the training should have waited.

The first "tower" you get is floor spikes. They're great, but only attack one enemy at a time. Logically it should attack anyone who is on top of it when it activates.

Good stuff. Speed controls are great, and the ability to bring in the next wave before the timer runs out is also nice. (Expected features, but often missing from TD games.

It would play much better in the iPad, I would think.

Unique tower defense


The negative reviews confuse me a lot here, this game is unique in its floor tile system of tower placement. Very fun TD game in my opinion , I played through it all the way twice. Wish there were more levels added sometime, but I don't think any are going to be added.


315 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish
Age Rating
Rated 9+ for the following:
Infrequent/Mild Cartoon or Fantasy Violence
© 8Floor
In-App Purchases
  1. Buy 300 ore $4.99
  2. Buy 600 ore $8.99
  3. 100 ore $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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