Starfield:Factions

Starfield is full of diverse and varied factions. Some of these factions can be joined in-game, while others exist to enrich the lore and setting. Almost every NPC and creature belongs to one or more factions. These faction memberships control various things, such as the combat reaction of all NPCs and creatures, both towards you and towards one another.

Factions functions as a catch-all terms for all includes political factions, sovereign nations, administrative entities, private companies, bandit groups, etc. An organization does not need to be joinable to be considered a faction.