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Mass Effect 1 Legendary Edition

UNC: Prothean Data Discs

Ben Chard

This Assignment can be accepted at any point after you gain access to the Galaxy Map for the first time. It takes place across the Galaxy and involves the collection of items.

The Prothean Data Disc on Juntauma.

Where to find the Data Discs

Once you venture out into the Galaxy, you’ll be able to either explore Uncharted Planets with the Mako or Survey them directly from space. While on the planets themselves, you may come across anomalies on the map which, when examined, will begin the decryption mini-game.

Alternatively, you can survey some planets directly and you’ll receive the item without having to explore with the Mako. Once you find your first Data Disc, the Assignment will get added to your Journal, at which point you’ll need to find 7 to complete the Assignment. There are a total of 10 in the Galaxy and finding each one will also award you XP and Credits, of which both scales based on your current level.

Cluster System Planet Method
Argos Rho Phoenix Carbonaceous Asteroid Survey
Armstrong Nebula Treshkova Antibaar Mako
Artemis Tau Sparta Asteroid Cluster Survey
Attican Beta Theseus Sharring Survey
Hades Gamma Farinata Juntauma Survey
Maroon Sea Matano Chasca Mako
Maroon Sea Matano Rocky Asteroid Survey
Styx Theta Erebus Wermani Survey
Voyager Yangtze Alrumter Survey
Voyager Yangtze Binthu Mako


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Guide Information

  • Publisher
    Electronic Arts
  • Platforms
    PC, PS4, XB One
  • Genre
    Action RPG, Third-person shooter
  • Guide Release
    14 May 2021
  • Last Updated
    17 August 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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