How to Solve the Double House Tile Puzzle in Big Walk

The Double House Tile puzzle in Big Walk tests cross-building communication between an observer watching illuminated patterns and a partner triggering corresponding switches.
To locate this puzzle area, travel straight ahead from the Yellow Tower threshold until both buildings come into sight. Solving the mechanism requires positioning squad members across both facilities. The first structure displays a collection of tiles across the walls and flooring. The second structure holds wall and floor switches mounted in matching spatial configurations.
The player inside the tile building monitors which panels illuminate with a clear perimeter radiance. Calling out these active positions allows the partner in the switch facility to depress the matching mechanism. Each accurate button activation fills a green meter positioned within the tile structure. If a teammate activates the incorrect node, the sequence resets back to the start. Once the meter fills completely, the challenge finishes and yields the collectible. Handing these tokens over at the Yellow Tower provides the tower key, which unlocks the underground transit tunnels and simplifies traveling across the island.