To Gyldenglad: I suppose that this custom story takes about 1,5h. Personally, I'm finishing it in 30 minutes, but I know how to complete every puzzle
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Of course it depends on how fast is your "progress-meter"
To Tiero: Uhm, Are you Russian, or it's just your way of "Spoilering" massage? Read the previous posts, I won't be explaining how to complete this puzzle once more.
I have fixed all bugs ( especially the "steam-pipes" one) and added some hints (For zeppelin puzzle!).
Check your game version: The proper one should be "The_Machine_v1.0.3". The download link is correct now.