Get a free download for Rift (PC) and a 30 day online pass.
Here's the ad:
The ad with the code is in a GS e-mail you should have received.
To redeem the game go to the page the e-mail redirects you to and register/follow the instructions:
Step 1: Download and install the GameStop App from http://www.impulsedriven.com/about.
Step 2: Using the email@example.com email address, create or login to an account using the GameStop App.
Step 3: Go to the My Games tab in the GameStop App, select your game and click the Install button to download.
GS link with system requirements and stuff:
Edited by Seshka, 18 July 2012 - 11:10 AM.