Based on a game design outline by VP of Development/Creative Director, Bill Davis, and written by Howard Cushnir and Adam Wolff, Obsidian is a first-person 3-D graphical adventure game, with a large puzzle element. The puzzles were designed by Scott Kim, Howard Cushnir and Adam Wolff. The soundtrack was composed by Thomas Dolby along with other composers at his company Beatnik, at the time known as Headspace.

The game spanned five CDs, and features pre-rendered environments, audio, and full-motion video (both live action and CGI). The strategy guide includes numerous small essays, providing background on such subjects as nanotechnology, Jungian psychology, and the nature of artificial intelligence.