In October 1984 Spinnaker founded two subsidiaries, the Telarium Corporation and the Windham Classics Corporation. Telarium was initially named "Trillium", but Spinnaker changed the name shortly after its announcement and before launch to Telarium when another company claimed ownership of the Trillium name. Both corporations published adventure games (interactive fiction) based on literature works. The target groups were different, Telarium geared toward grown-up adventure players and Windham Classics geared toward children players. In marketing and sales issues, both subsidiaries worked closely together with their parent company. President of Telarium was C. David Seuss. The game development was managed by Seth Godin. Telarium focused on prime quality text and published eight adventures, partly in cooperation with established writers like Michael Crichton, Byron Preiss, Ray Bradbury, and Arthur C. Clarke. Windham Classics focused on a nonviolent storyline appropriate for children and published five adventures.