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Rules Index | GM Screen | Player's Guide

Water Pressure in Gaming

Source Grand Bazaar pg. 19
In the real world, the water pressure past certain depths can easily crush vehicles and creatures that aren't specifically built to handle it. Even with the right gear, rapid changes in pressure can result in decompression sickness, which can cause loss of consciousness or death. Early diving equipment such as the suit and bathysphere presented here were dangerous to use, and losing air pressure to a diving suit could result in the wearer becoming lethally compressed into their helmet. However, for simplicity, Pathfinder's core rules for underwater adventuring don't include any rules for damage from pressure. If you wish, you can use environmental damage to simulate it.