Nine Inch Nails have pioneered the idea of giving away multitracks or song masters away to the general public for remix purposes. All multitracks are available for download from the fan-made site ninremixes.com, here. Alternatively, a selection of multitracks can be downloaded from the official NIN remix site, remix.nin.com, here. There are also multitracks available from releases by How To Destroy Angels, soundtracks by Trent Reznor and Atticus Ross, as well as from songs by a few other artists who have toured/collaborated with NIN.
The Fragile era
"Starfuckers, Inc." was released as 21 separate 13-second files.
"The Day The World Went Away" was released as 17 separate 14-second files.
"The Big Come Down" was released as 15 separate files of varying lengths.
With Teeth Era
"Only" was released on June 25th, 2005 in more formats than the previous multitrack.
Year Zero era
"Survivalism was the first of this album to be released on March 13th, 2007. The next batch of multitracks to be released were "God Given", "Me, I'm Not", "Capital G", "My Violent Heart" and "The Beginning of the End". The multitracks for every song on Year Zero were then made available with the physical release of Y34RZ3R0R3M1X3D. To coincide with the release, remix.nin.com was set up where users can upload, stream and download mixes, as well as download multitracks in .zip files.
Ghosts I–IV era
The multitracks for all the songs on Ghosts I–IV are included on a DVD-ROM as a part of the deluxe and ultra-deluxe editions of the album which can be ordered from ghosts.nin.com, although the latter has sold out. Additionally, multitracks for the songs "10 Ghosts II", "19 Ghosts III", "26 Ghosts III","34 Ghosts IV" and "35 Ghosts IV" can be downloaded from remix.nin.com
The Slip era
The multitracks for the single "Discipline" were made available on remix.nin.com at the same time it was released as a free download. Multitracks for the remaining songs on The Slip were made available on May 5, 2008 as a free download from remix.nin.com
In addition, the Pigface version of "Suck" was released as multitracks for a remix competition.
Following the release of Saul Williams' The Inevitable Rise And Liberation of NiggyTardust!, the multitracks for "Banged And Blown Through" and "Break" were made available for download from remix.nin.com
Together with the NINJA 2009 Summer Tour EP which was released for free download in 2009, three new multitrack packages appeared on remix.nin.com, including Jane's Addiction's "Chip Away" and "Whores" and Street Sweeper's "Fight! Smash! Win!" (although this track is not featured on the EP).
From video games
Various versions of Rock Band and Guitar Hero feature songs from the NIN catalog, which have been unofficially ripped from the game files to create multitracks.
Rock Band features 7 NIN songs:
Rock Band 3 features 5 NIN songs:
Guitar Hero: Warriors of Rock
Guitar Hero: Warriors of Rock features 4 NIN songs:
From the expansion pack:
How To Destroy Angels
How To Destroy Angels EP
How To Destroy Angels began releasing multitracks to its songs on 20th May 2010, starting with two tracks from How To Destroy Angels. These were:
The Social Network Soundtrack
For a competition to meet Trent Reznor and Atticus Ross, multitracks for two of the songs from The Social Network Soundtrack were released for remixing. These were:
The Girl With The Dragon Tattoo Soundtrack