----!! WARNING !! NOT COMPATIBLE WITH OTHER DOOM MODS!!---- . . . From the creators of Amnesia: Key to Freedom. Doom Zero is both a celebration and subversion of the original Doom. With unique puzzle, navigational and narrative elements. The purpose of Doom Zero is to prove to Doom fans that there is far more you can do with the vanilla version of Doom II. This also means it can run on the DOS original.
This is not a 100% walkthrough. For that you will need to go here: Youtube.com