A character takes 1D6 damage per metre fallen, after the first.
As long as the character was not surprised, they may attempt an Athletics test to mitigate falling damage. A successful test allows the character to treat the fall as if it were two metres shorter than it is. Also, as long as this test is a success and the character’s hit points are not zero or less due to the fall, the character lands safely and is not prone. If the roll is a critical then miraculously no damage is taken. If the roll is a fumble, then the maximum possible damage is taken.
Characters falling onto soft surfaces may have the distance they fall effectively halved for damage.