Dwarf Fortress

I embarked on a volcano and dug out a 3-wide tunnel around the magma chamber so traders would have to spiral down into my fort. I had an issue where wagons kept on coming in hot - really hot - as in on fire. If I recall the front of the wagons turned 90 degrees their back end would clip through the 1 square wall to the lava and catch fire. Or they caught fire when they had to ride over a set of bridges just above the lava.

Also, dwarfs would dodge the incoming wagons while on the bridge.. into the lava. RIP my bisexual king who had an Adamantine bedroom.