Game objective: In each level, players need to design and build a safe and stable bridge that can connect both ends based on given scene requirements (such as bridge length, load capacity, etc.), so that passing vehicles can pass safely.

Game rules: Players need to use their creativity and physics knowledge to design and build bridges. When designing bridges, various factors need to be considered, such as terrain, water flow, wind force, as well as the length and load-bearing capacity of the bridge itself. You can also set your own pace, schedule yourself, and improve efficiency.

Game difficulty: As the game progresses, the task difficulty will gradually increase, requiring players to continuously improve their design skills and skills in order to complete higher difficulty challenges.