"As a veteran game designer, consultant and reviewer, I see an awful lot of software, so it is with considerable pause that I begin by saying that Obsidian is probably the very best game I have ever played of any genre. Frankly, even though I approached the game with high expectations, I was completely blown away by what I encountered. Every aspect of the game is filled with such innovation and polish that it seems to leave all the others in the dust. Some reviewers may be tempted to compare it to Myst, but they really are not even in the same ballpark." -- https://gamefabrique.com/games/obsidian/

This game is $199.91 on Amazon with only one copy remaining: https://www.amazon.com/Obsidian-Pc/dp/B00069EZ42