freebsd-ports/games/dungeon/pkg-descr

Dungeon was the most famous text type adventure game. 
Zork I, II, III of Infocom were based on it. 

For more detailed information, visit:

WWW: http://www.csd.uwo.ca/Infocom/dungeon.html

You can also read the articles about the history of the Zork 
in ``The New Zork Times'' there.

This port requires both Fortran and C source zipped archives, 
however the program is built only from the C source. 
The Fortran source archive includes useful information 
to solve the myth, which you should look at. 
--
rmiya