Too much random guesswork. No rhyme or reason to some puzzles. I have done a lot of escape and puzzle solving games in my life dating back to the Riven and Mysts series and Matuesz Skutniks Submachine series. Done the DOOORS (yes thats the correct spelling) series and many of the Mobests games before Kaarel Krispu took them over. Im sorry I have to rate this at the bottom of all them. This is my first 1 star rating. Was so excited to find something I hadnt tried. After just 20 levels Im deleting.