As of April 2026, is a commercial product and is not officially offered as a free "full version" download. Poly Bridge on Steam

Poly Bridge: Game Overview and Availability Report is a highly-rated physics-based simulation puzzle game developed by the indie studio Dry Cactus . It challenges players to design and build stable bridges to transport various vehicles across gaps while adhering to strict budget and material constraints. Gameplay and Features

: Players use materials like wood, steel, and hydraulic pistons to create structures that must withstand realistic weight distribution and tension. Multiple Modes :

: The game uses a clean 2D planning interface and a 3D mode for monitoring vehicle movement, using color-coded load indicators to show structural stress. Official Purchase and Platforms

: A free-build area where players can create their own intricate designs and custom puzzles without restrictions.

: Features over 100 levels with increasing difficulty, ranging from simple car bridges to complex multi-deck drawbridges.