No, this isn't 'The Cave' of ancient UNIX fame, of which you have a copy on your Mac, you'll have to discover exactly where all on your own. The original 'The Cave' evolved into the Zork series of both CLI and CGI games. But back to the subject at hand:
This "The Cave" looks very fun. Unfortunately, there is NO DEMO for Mac. Therefore, go over to the developer web page for the game to see it in action. The 3D animation looks nice. It's full of silliness and puzzles. There is a forum at the developer's site for news and chatter.