The spin-off of SimplePhysics. Protect your dummy from explosions, boulders, spiked walls, and more!

Use the blueprints editor to design a structure that will protect your dummy, Melvin, from some random danger. You'll have to work with the available materials. Most of the time you'll use wood, sometimes you'll use concrete, but you must always use your most important asset: your brain.

A wise person once said: "An engineer is someone who can do for a dime what any fool can do for a dollar." In Dummy Defense, your design must not only be strong enough, it must be cheap enough to win. Building cheaper structures will earn you more stars on a level.

Create your design in seconds with the blueprints editor. If you make a mistake, simply tap the Undo button. Zoom in and out by pinching the screen and pan the view using a two finger drag.

While testing, you can see how the strain is distributed across your design. Areas that are under immense strain are colored bright red, while other areas are colored green. This allows you to find and fix problem areas in your design.

The slow motion slider lets you slow things down so you can see how your design is failing, and it is also incredibly fun to watch explosions destroying your design in slow motion.

* Realistic physics simulation
* Ragdoll physics
* Slow motion slider
* 25 levels
* Stress display shows problem areas in your design
* Finger Test - smash your design to pieces, or blow it up with realistic explosions!
* Save/Load designs
* E-mail your blueprints to your friends
* Universal support for the iPad
* Retina display support

What’s New

Version 1.4.3

Updated to support 64-bit.

Ratings and Reviews

3.9 out of 5
32 Ratings

32 Ratings


Good game but it’s broken.

The only problem with this game is a glitch on the iPad where the inputs are inverted and upside down. But by just rotating your screen, it can fix the problem. Other than that, it’s a great game.

Thisis trash ,

I will get serious

Look this game is advertised as a great cheap game but when I started it up it just flipped upside down and no controls work. Basically you took money from me. So if you don’t fix it it is false advertising. I love your other games I have simple planes as well but this is doesn’t live up to the standards you have set with all your other great games. I want this fixed or my money back. And I’m not upset and frustrated over $.99 its the fact that this problem has not been fixed. I looked at vids of the gameplay it looked amazing but this is bad. I will write letters and even contact the people who run the App Store until this problem is fixed. I’ll give you until Christmas Day to do this before I get really upset. And I don’t wanna go there. I know that you may be spending more time on SimplePlanes 2 but you still have other needs that need to be attended to. It’s like if you are the only doctor in the hospital. If you only ever focus on one patient the others will die. Just like if you only focus on one game all the others will die. I wan5 this fixed and I will keep checking in. If you are done with this game take it off the App Store and give us our money back. I’m trusting in you to fix this. Your reputation as a one of the best devs in mobile history depends on it too. I hope you make the right choice if not ohhh boi I’ll be back on Christmas Day. Thank You for your time.

SUMA59 ,

Good game!

Solid 4 star game. Loses a star for having to flip my iPad to play and low content. Come on dev's, let's not be lazy now... Game is super short, but fun. Can be beat in under 2 hours... Might purchase the add-on content.

I could see cutting your games short if you were pressured for time, but people expect much more from a game like this. Two hours is pretty short for the price. Some games last a long time with reply value for the same cost. I will admit, this game does have replay value.

Fun game, with good physics, but crippled by very low content.

EDIT: I purchased the add-on content. It's super hard. If you don't think the default levels are that good, don't bother with the add-on content. It should have been included in the game anyway, not as a separate purchase IMO.


Jundroo, LLC
29.9 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Infrequent/Mild Cartoon or Fantasy Violence
In-App Purchases
  1. Instruments of Death Level Pack $0.99
  2. Solution Pack 1 $0.99
  3. Solution Pack 2 $0.99


  • Family Sharing

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

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