This game requires a TADS 3 interpreter. An interpeter for Windows can be downloaded from: http://www.tads.org/t3dl.htm For the Macintosh, you'll need HyperTADS 1.2.6 or later. You can get this from the IF archive in the 'interpreters-tads' directory (or the 'unprocessed' directory if the archive maintainers haven't moved it yet). The 'tartans' directory contains important resources; the game won't work properly if you move it.