Alien: Earth is set in the year 2120, within the Alien franchise timeline, making it a prequel that takes place about two years before the events of the original 1979 Alien film.

Timeline placement

  • The story occurs in 2120 , on a future Earth dominated by mega‑corporations and advanced synthetic lifeforms.
  • It is positioned two years before Alien (1979) , which is set in 2122, so the series leads directly into the era of the Nostromo and Ellen Ripley.
  • It also follows the events of the prequel films (like Prometheus and Covenant) but stays focused on how Xenomorphs finally reach Earth itself.

In-universe context

  • Earth at this time is ruled by five major corporations (including Weyland‑Yutani and new players like Prodigy), and both cyborgs and synths are commonplace.
  • The plot begins when the deep‑space research vessel USCSS Maginot crash‑lands on Earth, bringing multiple alien species—including Xenomorphs—into a densely populated human environment.

In short: if you’re watching the Alien movies in story order, Alien: Earth sits near the end of the timeline, almost immediately before the original Alien.

TL;DR: Alien: Earth is set on Earth in the year 2120, about two years before the original Alien movie, in a corporate‑ruled, high‑tech future where Xenomorphs finally make it to our planet.

Information gathered from public forums or data available on the internet and portrayed here.