Engineering
Structures
Design it, price it, test it to failure. Pick a challenge below.
Bridge Builder
Design a truss bridge across a canyon, then send a truck across it and watch the physics play out. Members stretch and compress, color-shift under stress, and fail if the design can't take it.
- Pick a span from 20 to 100 ft and a truck load up to 30 tons
- Six classic truss guides or go freestyle
- Live stress colors, a deflecting deck, and a real collapse when it fails
- Every design has a price — the cheapest bridge that holds wins

