FortMacTux can be easily extended. Just download program package converters from this site and convert from popular format to .lzm module.
download Gslapt PkgMngr files from FortMacTux, double-click these files
to activate this program. Then, simply download & install desired
files from Slacker.
FortMacTux v1.0.8 gamesplus live dvd officially released.
live/no install required. Contains FlightGear 1.9.0, Alice3D sim environment, DukeNukem3D, plus much much more. Enjoy!!!
(posted and distributed through ibiblio.org and mirrors)