Borderlands 1 SHiFT Codes
Borderlands: Game of the Year was re-released in April of 2019. In addition to upgrading the game's graphics the SHiFT Code system was also added to the game. The codes below are specifically for this Enhanced version of the game.
The archive below is listed in reverse chronological order with the newest codes appearing first. You may also be interested in the active codes page that only contains functional SHiFT codes.