An environment with high gravity will be oppressive for most creatures. The
Bulk of all creatures and objects is doubled, meaning creatures acclimated to normal gravity can carry only half as much. Creatures used to normal gravity move at half
Speed and can jump only half as high and far. Physical ranged attacks are impossible beyond the third range increment (instead of the sixth). Creatures that fall in high gravity take bludgeoning damage equal to the distance they fell.