Polyhedraverse
137 shapes across 7 families — vertex ball-joints and face-to-face connections
Click a highlighted, free vertex to attach a shape, or click a node's body to select it — a free face offers face-to-face attach for shapes with a matching face size (glowing nodes still have room to build from).
Polyhedraverse
137 shapes, one registry — connect them face to face, vertex to vertex.
+ 4 impossible star solids to explore in Full Catalog — look, don't build.
