GameSpot
- Rated 8.6/10. "From beginning to end, Obsidian is an entertaining, surreal romp." By Tim Soete
- http://www.gamespot.com/pc/adventure/obsidian/review.html

Quandary
- "It is more a series of well integrated logic puzzles based around the premise of intelligent technology running riot rather than a traditional adventure game that tells a story." By Gordon Aplin
- http://www.quandaryland.com/jsp/dispArticle.jsp?index=194

In Games Begin Responsibilities
- Preview by Ralph Lombreglia includes interview Howard Cushnir, co-author of Obsidian. [The Atlantic]
- http://www.theatlantic.com/unbound/digicult/dc9612/dc9612.htm

Review by Andrew "Zarf" Plotkin
- "All the puzzles have the True Way of Surreal Puzzles, which is that nobody explains the rules, but if you fiddle with them, you realize there's only one way the rules could go."
- http://www.eblong.com/zarf/gamerev/obsidian.html

PIB Review
- "This game can be played by any patient member of the family, and it should appeal to almost anyone interested in thinking through a game."
- http://www.pibweb.com/review/obsidian.html

Apollo Guide
- by Mike Gower
- http://apolloguide.com/soft_revtemp.asp?cid=62