DN Map Loader lets you easily use third party maps and total conversions with the OS X version of Duke Nukem 3D, including Duke It Out In DC.
Multi-player games across your local area network (WAN not tested).
Set difficulty level in single player maps.
Ratings system to rate your favorite maps.
Play count shows how many times you've played a map.
Open text files; Open map files in Build; Play voc, wav, midi files.
A Group Extract utility for pulling files out of a .grp file.
A Group Build utility for creating .grp files.
A Config Duke utility for changing screen resolution and enabling MouseLook.
A User and Defs con update utility for updating cons from v1.3 to v1.4
Mac OS X Only
Mac OS X 10.3 and OS X version of Duke Nukem 3D