HYPERCHARGE: Unboxed pits up to 4 of your friends against relentless waves of enemies in a CO-OP experience. As the enemy become stronger, can you handle the pressure of each wave? Work as a team to build your defenses and expand your base. Increase your chances of survival by gathering Batteries and maintain power to your defenses.We are always listening to your feedback. Please take a look at our forums and let us know how we can make the game better for you.

— 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.