Telarium

C. David Seuss founded Trillium Corporation as a subsidiary of Spinnaker Software, which he had also founded and of which he was the CEO. Within the first year of its founding, Trillium's name was changed to Telarium due to legal issues presented by a book publisher. Telarium primarily released adventure games, with the exception of Shadowkeep, a role-playing game. The games were based on books, and the development of each game led to cooperation between the software developers and the authors. The first author who was consulted was the science fiction novelist Michael Crichton. Crichton collaborated on the development of Telarium's game Amazon, which was loosely based on his book Congo.

Telarium published eight adventure games. The games belonged to the genre of interactive fiction with graphics. One game (Shadowkeep) was also a role-playing video game. They were based on works of literature in the literary genres of science fiction, fantasy, crime fiction and legal drama. Often they were developed in cooperation with established writers. The game development was a part of Spinnakers marketing strategy in the adventure game market in the 1980s: Adventure games by Telarium were targeted at grown-up players, while those by Windham Classics–another Spinnaker subsidiary–were targeted at children. The development was managed by Seth Godin.

Amazon, 1984 (written by Michael Crichton, partly based upon his novel Congo)

Fahrenheit 451, 1984 (developed in cooperation with Ray Bradbury and based upon his science fiction novel Fahrenheit 451. Bradbury contributed a sequel to the game)

Rendezvous with Rama, 1984 (developed in cooperation with Arthur C. Clarke and based upon his science fiction novel Rendezvous with Rama. Clarke contributed a different ending to the game)