If you're looking for help or a solution for level 4-9 in Poly Bridge, here are some general tips that might be useful:
Here is the step-by-step architectural breakdown: poly bridge 4-9
: The game is physics-based, so think about how different forces (like tension, compression, and torsion) will affect your bridge. If you're looking for help or a solution
Always use triangles in your wood and steel frameworks to maximize stability with minimal materials. poly bridge 4-9