Okay first: the art is exceptional. The writing is excellent. The music and sound effects are spot on. The 3D animations are amazing. There is lots of content. The puzzles are generally well designed.
My only caveats are: Some of the puzzles are of the “tap everything in sight to see if anything reacts”, and that can become tedious at times. It can become especially frustrating when you are tapping on the right thing, but because you are looking at it from the wrong distance or angle, it doesn’t react. There are also the issues where it is not a tap that is needed, but a tap and drag in a specific direction. There were multiple times that I had to ask for a hint only to find that I had to go back to something I had already tap/dragged in every possible direction, and find that there was a particular angle of dragging that I had missed.
There were also some puzzles where I (at least on my iPhone X) had a lot of trouble maneuvering tiny puzzle pieces. It would require multiple tap/drags to get something moving, and then once moving, it would overshoot where I was intending to put it, and I would have to start the process again. This got bad enough with one puzzle that it took me about 3 days to get through it, because I could only play to a certain point of frustration and then I would have to put the phone down and go do something else.
In the “take over Europe” game, its mechanics were buggy meaning that the game’s feedback became nonsensical and it got into a state where it could not be completed. Since it had no “reset to start” button (that I could find), I finally got through it by restarting the entire chapter, wading through all the earlier puzzles again, and then very carefully working through the map puzzle again to finish it.
Another small annoyance I had was in the limited views of some areas. Like entering a large room I could see that there was beautiful artwork (or the end of the catapult) above me, but I was unable to scroll to see those things, I could only see a small area around whichever puzzle I was supposed to work on next.
The difficulty of puzzles was also very uneven, as though some areas had been carefully crafted and had difficult puzzles that required some thought, but then the next puzzle looked like it had been intended to be more difficult, but was then rushed through with a, “Put key here, okay, here is your final animation.”
And lastly, the obvious ripoff interface from “The Room” games left a bitter taste.
In some ways, especially artistically, this game is actually superior to The Room, but the frustrating puzzles dragged it down enough that I am afraid I can only give this one four stars. If a game’s puzzles are so obscure that it requires you to use its hint system to progress, then that is a design problem.
That said, there is enough other wonderful stuff here that — as long as you are willing to frequently lean on the hints — this game is worth buying.