ReDoomEd for Mac/Linux/BSD (BETA)
Port of “DoomEd”, id Software’s Doom map editor for NeXTSTEP (1993)
During development of the 1993 Doom game, John Romero & John Carmack wrote a NeXTSTEP application for designing the game's levels, called "DoomEd".
ReDoomEd is an independently-developed port of DoomEd from NeXTSTEP to Mac/Linux/BSD. It uses DoomEd's original source code (released publicly in 2015), modified to run on Cocoa, the modern descendant of NeXTSTEP. (Cocoa is the native API for Mac OS X, and is supported on other platforms by using the GNUstep framework).
DoomEd used a custom text format for storing Doom levels. The levels for Doom, Ultimate Doom, and Doom II were released publicly in DoomEd's format, and are available for download at archive.org. (Editing these project files also requires a copy of the IWAD from the corresponding game's retail version: doom.wad or doom2.wad).
Videos:
Mac demo video Linux (GNUstep) demo video
Mac app:
ReDoomEd.0.92.1-b1.dmg
(Requires Mac OS X 10.4 Tiger or later)
Linux install scripts:
Debian/Raspbian/Ubuntu Fedora
Source code:
ReDoomEd.Sources.0.92.1-b1.tar.gz