Atmosphere

This atmosphere is made up of gases such as oxygen and nitrogen that most creatures can safely breathe. Planets with normal atmospheres have weather patterns that vary depending on climate. Planets such as Castrovel and Verces have normal atmospheres. Artificial atmospheres, like the one on Absalom Station, are usually normal.

A corrosive atmosphere is made of caustic gases and creates dangerous weather patterns, such as acid rain. A corrosive atmosphere deals minor to moderate acid damage per minute to creatures and objects. Certain metals, stones, and treated materials might resist a specific type of corrosive atmosphere.

A thick atmosphere has high air pressure. Breathing a thick atmosphere usually requires characters to attempt a Fortitude save every hour to avoid becoming sickened until they begin breathing normal air. The value of the sickened condition depends on the specific atmosphere (typically sickened 1).

A thin atmosphere has low air pressure and often lacks enough oxygen to keep characters healthy. Breathing a thin atmosphere for more than a few hours causes non-acclimated characters to become fatigued. Severely thin atmospheres require characters to attempt a Fortitude save every hour or become drained. The value of the drained condition depends on the specific atmosphere (typically drained 1).

A toxic atmosphere contains gases that are poisonous to most creatures. Breathing a toxic atmosphere typically deals minor poison damage per minute.