The play time is 15 hours average. But can span from 10 to 20 or even much more depending on how much you are experienced about point & click adventure games. The game is very old school and puzzles are quite challenging. You'll probably find yourself having to pause and think about solutions while not in front of the computer playing it. Which is what we think is a key part of the point & click experience. Worst case you can still check walkthroughs that are widely availalbe online.