Looks great, but lacking in the gameplay department.

Example 1: the first puzzle is to build a library.  I build one, and it collapses.  Obvious conclusion: the foundation is too flimsy.  So, I try more solid-looking foundation, then I systematically try all other options for the foundation.  None of them work.  It turns out that the flimsy that I had selected first is the only correct choice, but I also need to select a different chimney.  Because the chimney not looking scary enough causes the library to collapse.  Somehow. Completely nonsensical puzzle.

Example 2: at some point in the game, I need to go back and talk to an npc to which I had previously talked to.  Not only does the game give no hint which npc I need to talk to, but all of the other npc just repeat their old lines instead of getting new lines.  In other words, I have to systematically search through the content I have already seen in order to find the new content.