Hey man,thank you for playing my game, the puzzles are based on logical signals, in future i want to put a little tutorial about them and other puzzles to open the doors, currently i am working on a mobile cat game and uploading them do playstore as soon it release please play too.
in the next month i Will Come back to this Project and make a real factory with more 3d elements and work on sounds, thanks man and sorry for my bad english i'am from Brasil 😆