Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To buy and download Viper by Cantasoft, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC


By Cantasoft

Open iTunes to buy and download apps.


Viper is a retro shooting game based on classic eighties video games.

Game Play:
You are defending your home planet from wave’s of aliens attacking you and the inhabitants of your planet.

You need to protect the humans from the aliens, they will infect the humans and turn them against you, and once a human is infected they are indestructible and will shoot at you, but don’t worry after three levels the humans will have fought off the infection and return to normal.

Watch out for the mines and replicators in your mission too, there’s also nasty raiders at the end of each level to hurry you along.

Your game is automatically saved at the end of each level.

Controlling your Viper:
You control your Viper by tilting your device left, right, up and down. The more you tilt the faster your ship will fly through the landscape.
To fire your laser, tap anywhere on the screen.

Please post feedback if you enjoy playing the game.

What's New in Version 1.2

Support latest OS, changed game images and sounds

iPhone Screenshot

iPhone Screenshot 1

Customer Reviews

Viper . . . disappointing

Viper could be a great game. It has a great premise. The original game(Defender) was my favorite growing up. But ... Viper doesn't live up the the original. The calibration screen is a nice addition to this version, but it doesn't really help make the game play better. There is no way to pause the game or adjust the calibration while you are playing. You have to die before you can return to the menu. I hope that Viper gets another update to make it the game it could be, but right now, it's not.

Cool games

It's basically defender. I loved playing that game back in the day.
And for the schmoes giving it a low rating for no sound, there is a speaker icon to the right of the calibrate button to turn the SOUND ON. DUH!!!!!!

It needs iPhone 5 support!!

I love this game but it needs support for the iPhone 5 so we can fly our Vipers on the wide 4 inch screen!!

Customers Also Bought

View In iTunes
  • $0.99
  • Category: Games
  • Updated:
  • Version: 1.2
  • Size: 1.7 MB
  • Language: English
  • Seller:
Rated 12+ for the following:
  • Frequent/Intense Cartoon or Fantasy Violence

Compatibility: Requires iOS 2.2 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions: