Really cool take on the theme! Here’s my Quick Playtest.
I love the idea of literally building a city toward its tipping point. The voxel look works really well too, and then I saw you made this in Three.js with a custom voxel renderer… for a jam?! That’s awesome.
One thing I’d probably work on a little more is the building placement/readability in 3D. Sometimes it was a little hard to judge exactly where something was going to end up. A stronger placement preview or some kind of depth/grid indicator could make it easier to intentionally build while still keeping the chaos of everything tipping over.
I also really like that the city starts feeling more ridiculous and unstable the longer you survive. It fits the theme perfectly.
Really clever concept. Nice job!