SBX Invasion is a fast paced tower defense and base building game. You pilot a ship equipped with a powerful build ray, and your trusty cannon and you must defend each sector from hordes of invading enemy ships. You must battle your wit and quickness against the terrible invading Fuscian army! A mix of tower defense, space combat, and base construction, SBX: Invasion is sure to keep you frenetically defending the galaxy!

— Activation Details —

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.