This game has a lot of potential. Looking forward to checking back in a couple years time. 

There are no sounds in this game which felt a bit strange, but I think a relaxing folksy soundtrack or a podcast would be perfect while playing this game. 

The challenges began to feel a little bit repetitive, it's basically the same quests over and over with ever increasing target goals. I'm not sure how the devs can motivate the player to want to keep going. Perhaps new quests or a story mode?

The train track blocks can be a little awkward, as you end up with holes in your map that can only filled by specific blocks that never come into your stack.

But this is all just nitpicking a game that is still in development. It is really beautiful and will probably be much more amazing when the game releases.