I also think the art was the standout. Really quite cute! I didn't understand why things didn't get built when I pressed E, so I thought there was a bug (besides the ones flying around). Then I would later see the items when I walked away and came back. Eventually I realized they were dropping in from above. I played until I built the full tower, too, but I didn't get to the top of it. Nice gameplay loop, though! Could see this having a lot more.