In the tutorial, I'm not quite sure why pressing F activates a toggler block when you still need to hover your mouse over it. It was kind of strange and misleading. Why use a button when you have to use your mouse anyway? I got to the part of the tutorial where you can stack stuff in your inventory. After I got to the bottom of that, there's this large area with copper veins, and nothing tells you what to do next. I tried collecting and stacking the stone, but it didn't work. I collected a bunch of copper, but nothing that allowed me to progress. Just hung out welding, unwelding, and trying to click on the stone.
I eventually figured out that you COULD store some of those small individual blocks if you unweld every side, but that's a bit tedious -- essentially having to wait for the "unweld" animation to draw out 3-4 times for every block, then hold shift and hover over and right click to retrieve each of those blocks -- it'd be nicer if there was a button that streamlined that entire process -- especially since this is essentially the crux of the game.
When I got to the extractor, I was lost again. I turned the one on the right on, and it started extracting ore. I knew that I needed to turn the one on the left on, and ride the ore to the top, but it didn't quite work... I also couldn't get the prompt to appear again, so I had no idea what to do. See pic:
This, too, I eventually got working by... I have no idea. I do not know what I did differently, but suddenly it started working again. I tried making sure everything was "welded" together before but for some reason this time it started.
One more thing -- I got the arc furnace working but no idea what the other equipment around it was. The arc furnace could be a bit tedious to run -- I had to collect every individual piece before the next one was "loaded" and then made available to collect to build the next part of the bridge. This process ought to be automated -- maybe let the arc furnace slowly run through the tower of ore on top and "stack" them automatically into the block touching it? I don't know.
Definitely recommend introducing the zoom in/out buttons in the tutorial towards the beginning. I never knew about them until I read another person's comments.
The crouch animation is pretty cute btw.