Bridge Constructor Portal merges the physics-based construction of Bridge Constructor with the puzzle elements of Valve's Portal series. Players construct bridges, ramps, and other structures across 60 test chambers within the Aperture Science Enrichment Center. The objective is to guide "Bendies" in vehicles safely to the finish line, navigating hazards like turrets, acid pools, and laser barriers.
The game incorporates iconic Portal gadgets, including portals, gels, and aerial faith plates, to overcome these environmental challenges and solve puzzles. Ellen McLain reprises her role as GLaDOS, providing voice guidance. A level editor allows players to design and share their own custom test chambers.