Adventures online

Eric Smith spacewar at
Thu Jul 23 23:00:36 CDT 2020

On Thu, Jul 23, 2020 at 11:47 AM Chuck Guzis via cctalk <
cctalk at> wrote:

> Infocom's games were based on Crowther, after all.

Inspired by, not "based on".

ADVENT was written in Fortran 66. I'm not sure what Crowther used
originally, but Don Woods version was developed on a DECsystem-10 running

The original Zork/Dungeon was written in MDL on a PDP-10 running ITS, and
only later "translated from MDL into FORTRAN IV by a somewhat paranoid DEC
engineer who prefers to remain anonymous."

Infocom games were written in ZIL (based on MDL), and developed on a
DECSYSTEM-20. Presumably Infocom had a ZIP for the -20, but they didn't
publicly release that.

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