Borderlands 3 Shift codes usually arrive nowadays in the form of multi-use codes that can be redeemed for Borderlands 2, Borderlands: The Pre-Sequel, Borderlands 3, and Tiny Tina's Wonderlands. To find them as they appear, be sure to check Gearbox CEO Randy Pitchford's Twitter account, where codes tend to show up first nowadays. If there aren't any active codes there, try the official Borderlands account. In the past, codes have dropped there first.