Nethack game off the Internet. Not sure what OSs work but
it's all here.

NETHACK(6)                    1999                     NETHACK(6)
NAME
     nethack - Exploring The Mazes of Menace

SYNOPSIS
     nethack [ -d directory ] [ -n ] [ -p profession (role)  ]  [
     -r race ] [ -[DX] ] [ -u playername ] [ -dec ] [ -ibm ]
     nethack [ -d directory ] -s [ -v ] [ -p profession (role)  ]
     [ -r race ] [ playernames ]

DESCRIPTION
     NetHack is a display oriented Dungeons & Dragons(tm) -  like
     game.  The standard tty display and command structure resem-
     ble rogue.

     Other, more graphical display options exist if you are using
     either a PC, or an X11 interface.

     To get started you really only need to  know  two  commands.
     The command ? will give you a list of the available commands
     (as well as other information) and the command / will  iden-
     tify the things you see on the screen.


AUTHORS
     Jay Fenlason (+ Kenny Woodland, Mike Thome  and  Jon  Payne)
     wrote  the  original hack, very much like rogue (but full of
     bugs).

     Andries Brouwer continuously deformed their sources into  an
     entirely different game.

     Mike Stephenson has continued  the  perversion  of  sources,
     adding  various  warped character classes and sadistic traps
     with the help of many strange  people  who  reside  in  that
     place  between  the  worlds,  the  Usenet Zone.  A number of
     these miscreants are immortalized in the historical roll  of
     dishonor and various other places.

     The resulting mess is now  called  NetHack,  to  denote  its
     development  by  the  Usenet.  Andries Brouwer has made this
     request for the distinction, as he may eventually release  a
     new version of his own.

FILES
     All    files    are    in    the    playground,     normally
     /usr/games/lib/nethackdir.   If  DLB  was defined during the
     compile, the data files and special levels will be inside  a
     larger  file,  normally  nhdat,  instead  of  being separate
     files.
     nethack                     The program itself.
     data, oracles, rumors       Data files used by NetHack.
     options, quest.dat          More data files.
     help, hh                    Help data files.
     cmdhelp, opthelp, wizhelp   More help data files.
     *.lev                       Predefined special levels.
     dungeon                     Control file for special levels.
     history                     A short history of NetHack.
     license                     Rules governing redistribution.
     record                      The list of top scorers.
     logfile                     An extended list of games
                                 played.
     xlock.nnn                   Description of a dungeon level.
     perm                        Lock file for xlock.dd.
     bonesDD.nn                  Descriptions of the ghost and
                                 belongings of a deceased
                                 adventurer.
     save                        A subdirectory containing the
                                 saved games.

ENVIRONMENT
     USER or LOGNAME      Your login name.
     HOME                 Your home directory.
     SHELL                Your shell.
     TERM                 The type of your terminal.
     HACKPAGER or PAGER   Replacement for default pager.
     MAIL                 Mailbox file.
     MAILREADER           Replacement for default reader
                          (probably /bin/mail or /usr/ucb/mail).
     NETHACKDIR           Playground.
     NETHACKOPTIONS       String predefining several NetHack
                          options.

     In addition, SHOPTYPE is used in debugging (wizard) mode.

SEE ALSO
     dgn_comp(6), lev_comp(6), recover(6)

BUGS
     Probably infinite.



     Dungeons & Dragons is a Trademark of TSR Inc.