===Down In It (Demo from ''Demos & Remixes'')===
'''''Running Time: 4:35''''' Appears on the ''Demos & Remixes'' bootleg, running 4:35. Almost exactly the same as the ''Purest Feeling'' version, simply lacking the extra layering and sound effects as well as the distorted outro, though it does retain the extended drumbeat intro.
There also exists a version (with a running time of 4:26) from a cassette tape handed out by Reznor to important figures. One of these cassettes is in the possession of [[Martin Atkins]], who has allowed fans to hear excerpts. Based on what fans have heard, this version may be the same demo.
===Down In It (''Purest Feeling'')===
'''''Running Time: 6:20'''''
Appears on ''Purest Feeling'' as the last track, differing from its official counterparts as that it has an extended intro with strange screams and odd static. It also includes about one minute and eight seconds of distorted clippings of the song at the end as a finish to the album. Musically it's extremely close to the "(Demo)" version from the ''Head Like a Hole'' US single.