I love the atmosphere of the game, it's a solid 3rd person platformer too. I think some guidance on the glowing buttons in the start would be good for new players as I managed to get to the 3rd platform using the nail gun, then couldn't figure out what to do for longer than I'd like to admit.
I really love the concept of you building your own platforms too, and the steam punk sound effects tied it all together.
well Done