Subsist
Source Player Core pg. 191
You try to provide food and shelter for yourself, and possibly others as well, with a standard of living described on page 243. The GM determines the DC based on the nature of the place where you're trying to Subsist. You might need a minimum proficiency rank to Subsist in particularly strange environments. Unlike most downtime activities, you can Subsist after 8 hours or less of exploration, but if you do, you take a –5 penalty.
Critical SuccessYou either provide a subsistence living for yourself and one additional creature, or you improve your own food and shelter, granting yourself a comfortable living.
SuccessYou find enough food and shelter with basic protection from the elements to provide you a subsistence living.
FailureYou're exposed to the elements and don't get enough food, becoming fatigued until you attain sufficient food and shelter.
Critical FailureYou attract some trouble, eat something you shouldn't, or otherwise worsen your situation. You take a –2 circumstance penalty to checks to Subsist for 1 week. You don't find any food at all; if you don't have any stored up, you're in danger of starving or dying of thirst if you continue failing.
Sample Subsist Tasks
Untrained forage on a lush planet with calm weather like Castrovel or panhandle at a busy space port with plentiful resources like Absalom Station
Trained forage on a habitable terrestrial planet, adequately supplied research station, or city
Expert forage in extreme terrain, subsist in an insular frontier colony, or stowaway on a long-haul freighter
Master forage on a desert moon or abandoned space station
Legendary subsist on a barren asteroid, toxic or irradiated planet, or a city undergoing orbital bombardment