Cancelled portsWhen the game was initially announced in Infocom's newsletter The Status Line (in Volume VII N. 1 Winter/Spring 1988), it was stated that it would be also released for the Atari ST and Apple GS platforms. These conversions were however not offered for sale in the following issues of the newsletter, thus suggesting they were cancelled. Despite this, many websites list (as of October 2015) an Atari ST release. This is perhaps due to a playable version that circulates, but is likely an unofficial conversion.
First built-in cluesSherlock was the first game released by Infocom with built-in InvisiClues.
Follow-up projectsIn an interview, Bob Bates said this about the last project he worked on for Infocom: "The third was always meant to be a Robin Hood game, but when the opportunity came up to do a game based on James Cameron's The Abyss, Infocom asked me to do that instead. That's the game I was working on at the time the company shut down."
SoundRelease 26 (Amiga and Macintosh) supports sound. It's possible to update earlier dat.files (Release 21), and when the appropriate sound files are also available, play them with audio with a suitable interpreter (such as Frotz).
WriterBob Bates was the only external Infocom writer.
Information also contributed by Belboz, -Chris, Tony Van