Because it would be a random generator, it obviously couldn't be as good as a human designed map, but it'd be good for quick plays, and as for budget and difficulty, it'd have to assign that from the length the bridge has to span.
Zatikon is back and free to play! https://www.chroniclogic.com/zatikon.htm
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Show posts MenuAnd leading from that, you could have a multiplayer mode where the generator generates a map, and two players (or more I guess) compete to see who can complete a bridge in the fastest time, or with the least amount of cash, or that can hold the most weight. The last two would have a time limit.