Invasion is bullet-hell shoot 'em up, a direct descendant of Galaxian video game with new ideas and technical implementation. If you like a non-stop shooting and full screen explosions - this is your game. Take the tank and destroy the alien ships or aliens will destroy you. You can choose different tanks, and use tactical nukes to fight the enemies. Machine, plasma and sector guns, lasers, rockets, cannons and bombs will help you. Also you can upgrade your tank and weapons. Destroy the aliens! Features The slow-mo mode; The nuclear strrrike; The shot deflection ability; Upgrades for weapons; Many tanks to choose from, each with a lot of room for further upgrades; The sharpshooting reward system and combat statistics; And a bloody lot of hardcore massacre action with tons of deadly lead!

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.