What's New

Compatibility with latest iOS devices

App Description

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?

- 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

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


"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."

"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."

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

"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."

iPhone Screenshots

(click to enlarge)

Blue Defense! screenshot 1 Blue Defense! screenshot 2 Blue Defense! screenshot 3 Blue Defense! screenshot 4 Blue Defense! screenshot 5

App Changes

  • October 04, 2013 Price decrease: $1.99 -> $0.99
  • December 12, 2013 New version 2.0.4
  • March 21, 2014 New version 2.0.5
  • February 20, 2016 New version 2.0.7
  • February 28, 2016 New version 2.0.9
  • June 15, 2019 New version 2.1.1

Other Apps From Cat in a Box Games

Blue Attack! Red Conquest! Fastar! Blue Defense: Second Wave! Instant Sign