# Blue Defense! — Unwinnable yet unquittable!

> Action shooter game defending a planet from an invasion force. (iPhone/iPad app by Cat in a Box Software.)

- Source: https://appshunter.io/ios/app/blue-defense/id295528445 (this page in markdown: same URL + `.md`)
- Developer: [Cat in a Box Software](https://appshunter.io/developer/1600179204)
- Category: Games, Entertainment, Action, Casual
- Price: $0.99
- Rating: 4.00/5 from 8 App Store ratings · 156 written reviews indexed
- Age rating: 9+
- Requires: iOS 9.0 · 8 MB
- Languages: American English
- Released: 2008-11-10
- Data updated: 2026-08-18
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/blue-defense/id295528445/reviews.md

## What is Blue Defense!?

Defend your planet!

Blue Defense puts you in charge of protecting your world from an invasion force that wants nothing more than your utter destruction.

6.7 billion lives hang in the balance... are your hands steady enough to handle the ever-increasing pressure of the attackers?

Features:
- Classic mode: play the game as it was in the original game
- Quick Start mode: choose a starting difficulty!
- Level Select mode: practice individual levels, start the game on your favourite level, or try to earn medals!
- Clean, oldschool graphical style
- Global High scores list
- Save state ensures that you can leave and come back to your game at any time

Controls:
- Hold the device upright
- Tilt left and right to control the stream of bullets
- Double-tap the screen to pause


Reviews:

"If you like shooters, you should just get this game ... it’s all about the gameplay."
-Touch Arcade

"Fantastic, simple, fun, wonderful game. Very unexpected but very much appreciated."
-148Apps

"the way it effortlessly shifts from style to style and handles motion controls make[s it] fresh in a decades-old genre. It's a bullseye for any shooter fan."
-Maclife

"Blue Defense! is tastefully designed and brimming with twists, turns and tongue biting.  Its polished graphics, smooth animation and habit-forming gameplay are praiseworthy."
-TouchMyApps

"A great space shooter that utilizes the iPhones controls to the max."
-Everyday Gamers

"Apple has finally released the [2.0] update and it does NOT disappoint."
-The APPera

"'Tilt to aim. Bullets shoot straight up.' I said, 'that’s it?' The answer was a wall of red death streaming down towards my planet."
-appleiphoneapps.com

## Key features

- Classic mode gameplay
- Quick Start difficulty selection
- Level Select for practice and medals
- Global High Scores list
- Save state functionality
- Tilt controls for aiming

## What do users think of Blue Defense!?

Overall sentiment: positive

**Pros**

- 🚀 Smooth and fast gameplay
- 👍 Unique and intuitive controls
- 💎 Retro-style graphics
- 🕹️ Addictive and challenging
- 💰 Great value for money

**Cons**

- 🔇 Lack of sound effects and music
- 🔄 Inverted controls can be confusing
- 🧠 Difficulty ramps up too quickly
- 🔋 Can be physically tiring to play

**Commonly reported bugs**

- Crashes on newer iOS versions
- Medals not saving properly

**Most requested features**

- Add sound effects and background music
- Option to invert or adjust controls
- Gradual difficulty increase
- Power-ups and weapon upgrades
- Global high score leaderboards

## Recent user reviews (10 of 156)

All indexed reviews: https://appshunter.io/ios/app/blue-defense/id295528445/reviews.md

### 5/5 — Can't believe this game is still around

*2025-12-17*

Bought this game back when I got my first Gen iPod touch. Can't believe this game is still around. Still fun!

### 5/5 — Still a great game

*2019-10-24*

This game was my favorite back when I got my first iPod touch many years ago. It warms my heart to see it’s still around and still works on my new phone.

### 5/5 — The update worked

*2019-06-10, version 2.1.1*

I love this game. I’ve been playing since the original release. I had the iPhone 3G at that time (2008).  I now have the iPhone XS Max in 2019. There was an app update on 3/22/19 and it kept crashing. I deleted it and re-downloaded the app. It works great again.

### 1/5 — Startet nicht mehr

*2019-04-17*

Seit dem letzten Update startet das spiel leider nicht mehr und bleibt beim ersten Ladebild hängen.

### 2/5 — Update Didn't Fix It

*2019-04-01*

I’ve had this game since my first iPhone 3G in 2010 and it’s always been one of my favorites. However, I haven’t been able to play this game in several years because of incompatibility with modern iOS. Suddenly, and update comes from the developer several days ago, in 2019, claiming to bring compatibility to the game with modern phones, however the game still does not launch. I thought the developer had stopped working on the game, however that doesn’t seem to be the case, although, whatever compatibility tweaks were incorporated in the latest update were not implemented correctly.

### 5/5 — Superb!

*2015-03-15*

An amazing update! Great to see this. Still a most excellent smoothly animated shooty, maybe the ultimate arcade shmup on the iPhone. Worth buying an iPhone just to play this.

### 1/5 — Not quite optimized

*2014-04-25, version 2.0.5*

I used to play this game all the time in 2010. A dated game, but a solid one nonetheless. This update is filled with sloppy optimizations, including, but not limited to improper formatting for iPhone 5 in many levels and multiple HUDs after levels requiring reorientation of the screen. Needs fixing

### 4/5 — Nice game

*2014-02-17*

Simple controls, nice sense of being in space due to level rotations.

### 1/5 — :(

*2012-03-13*

Bitte mit fingersteuerung dann 5 Sterne und Lieblingsspiel ok bitte bitte bitte

### 5/5 — This game is a blast

*2011-08-18, version 2.0.3*

This is by far one of my favorite games in the app store. It is challenging and a lot of fun.

## Frequently asked questions about Blue Defense!

### What is Blue Defense!?

Blue Defense! is a mobile game where you are tasked with defending your planet from an invading force. It features classic shooter gameplay with modern additions like different game modes and a global high score list.

### What are the main features of Blue Defense!?

Key features include Classic mode for an authentic experience, Quick Start to choose your difficulty, and Level Select for practicing specific stages or earning medals. It also boasts a clean, old-school graphical style, a global high scores list, and a save state function.

### How much does Blue Defense! cost?

Based on the provided information, Blue Defense! is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase for the full game.

### How do I control the game?

The game is controlled by holding your device upright and tilting it left or right to aim your stream of bullets. A double-tap on the screen will pause the game.

### What kind of players would enjoy Blue Defense!?

This game is ideal for fans of classic arcade shooters who appreciate challenging gameplay that tests reflexes and strategic thinking. The retro graphical style and focus on core gameplay mechanics will appeal to those who enjoy a pure shooter experience.

## Version history (last 5 releases)

### 2.1.6 — 2023-05-08

Bug fixes

### 2.1.5 — 2022-05-12

Fixed a crash.

### 2.1.4 — 2021-12-30

Minor bug fixes

### 2.1.3 — 2021-12-12

iPad support

### 2.1.2 — 2021-11-27

New leaderboards 
Removed crash analysis tracking

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## More apps by Cat in a Box Software

- [Blue Attack!](https://appshunter.io/ios/app/blue-attack/id302278746)
- [Red Conquest!](https://appshunter.io/ios/app/red-conquest/id342960702)
- [Fastar!](https://appshunter.io/ios/app/fastar/id382072963)
- [Blue Defense: Second Wave!](https://appshunter.io/ios/app/blue-defense-second-wave/id389817492)
- [Instant Sign](https://appshunter.io/ios/app/instant-sign/id574340515)

All apps by Cat in a Box Software: https://appshunter.io/developer/1600179204

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*