For free this game is certainly worth the time, even though it didn’t take much of it. Puzzles are straightforward, pretty intuitive, with just enough challenge to make me think a little. I read the reviews- the navigation seems a little strange at first, sort of like a super primitive panoramic view, but easy enough to get used to (you just have to remember to turn around to see everything in the room). Haven’t played the second one yet, but promises to be an even better installment. Looking forward to it.