Adventure Definition Language(ADL) An {adventure} game language {interpreter} designed by Ross Cunniff and Tim Brengle in 1987. ADL is semi-{object-oriented} with {Lisp}-like {syntax} and is a superset of {DDL}. It is available for {Unix}, {MS-DOS}, {Amiga} and {Acorn} {Archimedes}. {(ftp://ftp.uu.net/usenet/comp.sources.games/volume2)}, {(ftp://ftp.wustl.edu/systems/amiga/fish/fish/f0/ff091)}. (1995-03-20)