My only complain is the camera angles. there are certain corners of the room that it takes a while to find. I happened to find them accidentally by randomly clicking everywhere.
It involves a lot of time and critical thinking, but it can be done entirely without a walkthrough. You have to look for all the tiny little details in the posters. It took me about 2 hours to beat it.
 "Escape Game - Computer Office Escape"){kind=icon}
 "Hotel Escape: Episode 1"){kind=icon}
 "Island Escape demo"){kind=icon}
 "Casual Gameplay Escape"){kind=icon}