Get MacRadiant

MacRadiant is a port of the GTKRadiant map editor for the ID TECH 3 engine (and some of the ID TECH 4 engine), and exists thanks to Eridan.

You can find the current forums here and archived forums here (or in the sidebar on the left).

If there’s something wrong with this page (or missing from it), email me at redsaur AT redsaurus DOT net.

You’ll need Apple’s X11 to be installed in order to use MacRadiant.

Getting MacRadiant

If you’re on a PPC mac, you can get the most up to date version of MacRadiant 1.4 at

If you’re on an Intel mac, you can get the most up to date version of MacRadiant 1.4 at

With either of the above, you’ll need the packs installer from in order to give GtkRadiant support for Quake 3, Star Trek: Elite Force, SOF2, Jedi Knight II: Jedi Outcast, Jedi Knight: Jedi Academy, Wolfenstein: ET.

The original GtkRadiant in a bundle, containing GtkRadiant 1.4 and GtkRadiant 1.5, can still be downloaded from , but it requires a PPC mac. It already contains a Packs Installer, but unless you need GtkRadiant 1.5, I recommend getting the most up to date version rather than downloading this.

Don’t forget to read the documentation, and happy mapping!

Problems with Leopard and Snow Leopard

MacRadiant has some problems with Leopard and Snow Leopard, but you can work around them as follows (taken from Eridan’s posts on the forum):


  1. First, you need to update X11. Get the latest Leopard version from
  2. Navigate inside your MacRadiant 1.x bundle and locate the “script” file inside Contents/Resources. To open “Contents/Resources”, just control-click or right-click on the MacRadiant 1.x icon. A menu should appear. Select “Display content” or something similar and a window should pop up, with a “Contents” folder in it. Open the “script” file with your favorite text editor and remove the group of lines starting from the line
    ### Work around ...etc...
    down to (and including) the line
    export DISPLAY= ...etc...
    (15 lines in all I think). Then, you should have, at the end of the file :
    ulimit -n 512
    exec "$CWD/sw/ .... etc ....
  3. Fire up the Terminal application (in /Applications/Utilities/) and type the the following three lines (in the following, YOURPATH should be replaced by the path to your MacRadiant application bundle; don’t forget to press the RETURN key at the end of each line) :
    cd "YOURPATH/MacRadiant"
    mv libiconv.2.dylib libiconv.2.dylib.orig
    ln -s /usr/lib/libiconv.dylib libiconv.2.dylib

Snow Leopard

  1. Make the changes as for Leopard – note you don’t need to update X11 though.
  2. Fire the Terminal application
  3. Go to the lib folder inside the MacRadiant bundle by entering the following line (press the return key at the end)
    cd “/Applications/MacRadiant”
    (If MacRadiant is not located in the Applications folder, change the beginning of the preceding line accordingly)
  4. Type the following line and press the return key :
    rm libxml2.2.dylib
  5. Type the following line and press the return key :
    ln -s /usr/lib/libxml2.2.dylib libxml2.2.dylib

If you still have problems, make a post on the forums.

Tremulous packs Installer

You can find a pack installer for Tremulous support at;8726808;/file… . Alternatively, you can follow the extensive guides for mapping for Tremulous on a Mac at .

2 thoughts on “MacRadiant

  1. So, I have done all of the above. I am running MAc OSX 10.6.8, and I am trying to map for Star Wars: Jedi Knight: Jedi Academy. Or JK3, whatever you prefer. Now, I have installed the packs correctly, but for some reason, MacRadiant will not launch correctly. It will open, but not show anything on the screen, and close if I click it’s icon on the dock. Is there a fix for this?

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