Playing as arseholes like the vocal minority in this thread wants is boring and not fun and rather unenjoyable
By default a bunch of robots who believe humans are better off under their caring guidance. Can be altered to exterminators, assimilators or machines that turned on and discovered their makers were missing.
Early Quests: The Lost Colonies, The Great Mistake, Organic Rebellion
A race created by humanity for unknown reasons, only for humans to vanish on them.
Early Quests: Seeking our Creators, Pieces of the Past, Brothers in Spirit
Sentient cockroaches who evolved after humanity offed themselves.
Early Quests: Pieces of the Past, Desperate Survivors, Colonial Conflict
Aliens that had a human colony ship crash into their world. Now they want to know why. Can be changed to any other premade alien faction.
Early Quests: Alien Mania, Following the Trail, Impossible Discoveries
Bad guys choices, bad guys choices everywhere