This is Nuke It 1000, The 2nd Nuke It shovelware pack made for Duke Nukem 3d, This one was released in 1996, It contains 1000 levels for Duke Nukem 3d, 500 of which are Dukematch, It also has cheats and various tools, I do not take credit for this file and none of it is by me either, I found it on Archive.org and decided to Archive it here.