This was really fun. Took us just over an hour and a half to play though. Some of the puzzles were really clever, making use of the "co-op but not connected to the internet" mechanic. I really liked the, don't know what to call it, basement puzzle with the many buttons with icons on them? We even figured out the trick but it was still hard.
Played on two laptops but it seemed perfectly designed for tablets so I recommend checking it out in your various app stores :)