Atropos is a hostile alien planet that serves as the main setting of Returnal. Before the events of the game it was settled by an unknown sentient race referred to by Selene as "the sentients". They built an advanced civilization stretching planetwide that has long since been reclaimed by Atropos's chaotic and dangerous environment. Though the sentients appear to be largely extinct, artifacts of their civilization remain, along with "Severed" remnants of their population.
List of locations