1 - DN Map Loader 1.2.1 With DN Map Loader you simply add the files for a map or TC, select the map in the list, and click the Play Map button to start Duke Nukem. DNML will copy any necessary files to Duke Nukem and then launch the game with your selected map or TC. When you quit Duke Nukem, all modifications are reversed. License: Freeware OS: Mac OS X 10.3 Size: 484 KB