The Backer Outfit Set is a free gift to backers of Torment, and provides three new starting outfits after the beginning of the game. To get it:
- Steam: Go to the Keys page of the Torment backer site and claim your Steam key to unlock the Backer Outfit Set.
- GOG: Go to the Downloads page of the Torment backer site, and download the zip file, then extract to your game's install directory and run the executable.
Note: There is no unlock key or code for the GOG version; you need to use the installer mentioned above.