love the style. I loaded the game and instantly was excited. Had almost a Fallout vibe to the graphic style.
I was embarrassed how long it took me to work out the 1st level lol, then I was smashing through them.. almost feel like the difficulty (at least level 2) could have ramped up quicker. maybe whatever 1t cog you pick - it has a noticeable effect on another cog? I think level 2 and 3 I probably didnt even notice the mechanic of it changing other cogs.
nice work, well executed and polished