neat game! interesting foible tho; the constructor speed is a huge bottleneck for production. because so much of the upgrades focus on getting material to the top of the tower (by producing it faster, storing more, and moving more of it more frequently) i found that by floor 30 or so my constructor was running nonstop, meaning in order to use all these new upgrades i was getting i had to actively click myself. the top 60 floors of my tower were nothing but steel frames, and i never even built a single dwarf housing because i never had any problems producing material. maybe add more ways to speed up the constructor?