Essex is the second, and probably worst, game in Synapse's promising but short-lived "interactive novel" series. The game follows the real-time format of Mindwheel, but with a much-improved parser.
The premise is simple: your pleasant sightseeing tour of the Starship Essex takes an unexpected turn when a dying agent implores you to find a scientist on board-- a scientist who has the only formula that will help the Federation defeat the alien Vollchons. As with other Synapse games, many puzzles require astute timing and must be solved within time limit.
Essex, however, degenerates into a very frustrating game of hide-and-seek, as you attempt to find various characters in the labyrinthian ship. Your mapping skills will be stretched to the limit in this game, and worse yet, characters move around freely in a seemingly random pattern. Although you can use the Intercom to locate them (by asking "WHERE ARE YOU?"), they might not be at the location they told you once you arrive! Worse still, some puzzles require some characters to be with you, so finding them is imperative to finishing the game.
This frustration aside, Essex is a well-written and enjoyable sci-fi game, although it's not up to the standard of other Synapse games. The game will prove a worthy challenge to IF veterans, but definitely is not for the easily frustrated or IF newbies.
Review By HOTUD

Comments and reviews
At least for the DOS version, just hit "Enter" without typing anything to pass the copy check.
I think that there was only ever one book printed for all the different versions. Every version I've found has been identical and hasn't mentioned anything system-specific.
I tried entering what seemed to be the correct word a couple of times without success, until I thought of just trying hitting "Enter" without typing anything. The DOS version seems to have been altered always to accept an empty string as correct, so if you type anything--even the "correct" answer--the check fails.
The C64 version also has the "tell me the word" protection. It's not 'cracked' and the manual/book isn't available for download.
how can you play this game without the original Essex book? the game prompts clues/word questions from the book to continue forward.
No comment nor review for this game at the moment.