The story
ICOM Simulations was formed as TMQ Software on March 4, 1981, by Tod Zipnick. With the MacVenture series, ICOM pioneered the point-and-click adventure interface and later multiplatform CD-ROM development with Sherlock Holmes: Consulting Detective. Zipnick died of Hodgkin's disease in 1991 just as the company was beginning to take off.
In 1990, ICOM announced they would be partnering with NEC to bring games to the TurboGrafx-16, including Sherlock Holmes: Consulting Detective, one of the first console video games to feature full motion video cutscenes. In the early-to-mid 1990s, ICOM Simulations was a major third-party developer for the TurboGrafx-16 and developed a number of games for the console, including the TG-16 exclusive Shadowgate sequel, Beyond Shadowgate.
The company was acquired in 1993 by Viacom New Media which closed its operations in 1997. Renamed to Rabid Entertainment, VNM/ICOM was dismantled in 1998.
The rights to ICOM's game portfolio were held by the company Infinite Ventures, but they are now owned by David Marsh who obtained most of the rights in January 2012. On March 5, 2012, Dave Marsh and Karl Roelofs, both former developers at ICOM Simulations, formed a new game development company called Zojoi, LLC, and have begun releasing upgraded versions of previous ICOM Simulations titles, starting with Sherlock Holmes: Consulting Detective for iOS Tablets.
From Wikipedia’s article on ICOM Simulations, shared under CC BY-SA 4.0.4