About the game

The day that your city is attacked awakens in you a great power that can end the tyranny. Dodge swarms of enemies and their attacks while destroying them with your mighty cannon. Features Modern HD graphics Classic gameplay Mechanic based levels Weapon configurations

How to activate

Go to: http://store.steampowered.com/ and download STEAM client Click "Install Steam" (from the upper right corner) Install and start application, login with your Account name and Password (create one if you don't have). Please follow these instructions to activate a new retail purchase on Steam: Launch Steam and log into your Steam account. Click the Games Menu. Choose Activate a Product on Steam... Follow the onscreen instructions to complete the process. After successful code verification go to the "MY GAMES" tab and start downloading.

System requirements