Borderlands 2 - Headhunter Pack 1: Bloody Harvest DLC Steam CD Key (MAC OS X)

Don't lose your head in the Halloween-themed TK Baha's Bloody Harvest; where the candy isn't chocolate and there are more tricks than treats. Help zombie T.K. Baha take down the terrifying Pumpkin King, and add a new set of heads and skins to your collection. This is the first in a series of Headhunter packs for Borderlands 2; check out the new story path, bosses, heads and skins!

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.