1. Download the StarCraft II: Wings of Liberty BattleNet KeyMaker by
2. You will need to complete a survey to verify that you are a human and not a bot, this is to protect the number of file downloads. Simply click one of the free offers, complete a survey and the button will turn green.
3. Save the file to your desktop and open it.
4. When you have opened the application, click the Generate button. The application should take around less than a minute to generate you a code.
5. When you have your code, you can redeem it and play for free in BattleNet.