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Mass Effect 1 Legendary Edition


Nathan Garvin

Points of interest for the Erebus system in the Styx Theta cluster.

Missions / Assignments
UNC: Listening Post Alpha

Points of Interest

Location Points of Interest
Nepmos UNC: Listening Post Alpha
Nepmos Crashed Probe (loot)
Nepmos League of One Medallion
Nepmos Light Metal
Nepmos Heavy Metal
Nepmos Rare Element
Quaji Heavy Metal
Wermani Prothean Data Disc

Map of Nepmos.


To visit the Erebus system in the Styx Theta cluster you have to complete the mission on Noveria, first. Nepmos is an odd planet in that you may not actually have an assignment when you land on it. If not you can start UNC: Listening Post Alpha by visiting a Listening Post on Nepmos’s surface, otherwise this assignment may start after you complete UNC: Listening Post Theta in the nearby system of Acheron. In any event, after repulsing waves of rachni at the Listening Post in the southeastern corner of the map you’ll need to head to a Rachni Infested Mine in the southwestern corner to finish the assignment.

Along with the aforementioned assignment, you’ll find various unmarked rachni nests to the west-of-center of the map (just east of a Buried Strongbox) and another to the northeast (just southwest of the a Mining Camp. Near the aforementioned Mining Camp you’ll find some lootables in some shelters.

Guide Information

  • Publisher
    Electronic Arts
  • Platforms
    PC, PS4, XB One
  • Genre
    Action RPG, Third-person shooter
  • Guide Release
    14 May 2021
  • Last Updated
    13 July 2021
    Version History
  • Guide Author

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The guide for Mass Effect 1 Legendary Edition features all there is to see and do including a walkthrough containing coverage of all Assignments, detailed breakdown of all the important choices, class builds and much more!

  • Full coverage of all the Main Missions.
  • Every Assignment covered.
  • In-depth look at the major choices and consequences of each.
  • Full details on how to romance Ashley, Kaiden or Liara
  • Class builds to get the most out of your chosen class.
  • Details on every Talent.
  • How to spec your squad.
  • Breakdown of all Paragon and Renegade opportunities.
  • Trophy/Achievement guide.

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