I don't know if this one applies to to Mechanics but I'd like to see buildings topple over and break if they are built too much to the side with no supports underneath it. Think KAG (king arthur's gold) type physics, here's a humorous video on the subject
That's a great idea! I always loved the physics in KAG, it would just make the game more fun and challenging.
If this were to be in the game, I'd rather it be just as a mod, or perhaps a toggle-able option. Because if you think about it, if that were true, a good number of structures pre-made by the devs, and some terrain could just collapse.
That is true, the game would need some tweaking if implemented, it would also add another level of difficulty, a toggle sounds like a viable solution.
I'd like to see it alongside some kind of gravity resistant substance you could place in points and it would be considered "supported". But, it does add to the level of realism.