Every round a creatures falls 500 feet.

A flying creature can subtract its current flying speed from the distance it fell before calculating the damage. After a round of falling a creature that can fly can use half it's movement to stop falling.

At the end of a fall, a creature takes 1d6 bludgeoning damage for every 10 feet it fell, to a maximum of 20d6.

The creature lands prone, unless it avoivds taking damage from the fall or succeeds on a athletics or acrobatics check.