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The Mass Effect System Guide is a key to all the systems found in Mass Effect, and offers a quick glance at the relevant game information. Here you'll find which cluster a system is in, how to unlock it, and the links to the missions and assignments contained within it. Extra detail is provided for long collection assignments to help you find exactly the piece you're looking for on top of the other assignments in the system.

This information is also available in visual form for easy reference.

See Also: Walkthrough, Missions, Assignments, Planet Index

Argos Rho

Main article: Argos Rho

Gorgon System

Main article: Gorgon


Hydra System

Main article: Hydra


Phoenix System

Main article: Phoenix


Armstrong Nebula

Main article: Armstrong Nebula

Gagarin System

Main article: Gagarin


Grissom System

Main article: Grissom


Hong System

Main article: Hong


Tereshkova System

Main article: Tereshkova


Vamshi System

Main article: Vamshi


Artemis Tau

Main article: Artemis Tau

Athens System

Main article: Athens


Knossos System

Main article: Knossos


Macedon System

Main article: Macedon


Sparta System

Main article: Sparta


Attican Beta

Main article: Attican Beta

Hercules System

Main article: Hercules


Theseus System

Main article: Theseus


Exodus Cluster

Main article: Exodus Cluster

Asgard System

Main article: Asgard


Utopia System

Main article: Utopia
  • Scannable from Normandy
    • Nothing
  • Missions on Eden Prime
    • This is a mission world, and can only be visited at the beginning of the game. For more information, please see the walkthrough.


Gemini Sigma

Main article: Gemini Sigma

Han System

Main article: Han


Ming System

Main article: Ming


Hades Gamma

Main article: Hades Gamma

Antaeus System

Main article: Antaeus


Cacus System

Main article: Cacus


Dis System

Main article: Dis


Farinata System

Main article: Farinata


Plutus System

Main article: Plutus


Hawking Eta

Main article: Hawking Eta

Century System

Main article: Century


Horse Head Nebula Cluster

Main article: Horse Head Nebula

Fortuna System

Main article: Fortuna


Pax System

Main article: Pax


Strenuus System

Main article: Strenuus


Kepler Verge

Main article: Kepler Verge

Herschel System

Main article: Herschel


Newton System

Main article: Newton


Local Cluster

Main article: Local Cluster

Sol System

Main article: Sol


Maroon Sea

Main article: Maroon Sea

Caspian System

Main article: Caspian


Matano System

Main article: Matano


Vostok System

Main article: Vostok


Pangaea Expanse

Main article: Pangaea Expanse

Refuge System

Main article: Refuge
  • Unlocked shortly after finding Dr. Liara T'Soni and completing the missions on Feros, Noveria, and Virmire. Please see the Mass Effect Guide for more information.
  • Scannable from Normandy
Nothing


Sentry Omega

Main article: Sentry Omega

Hoc System

Main article: Hoc
  • Unlocked when council gives coordinates for Virmire
  • Scannable from Normandy
Nothing


Serpent Nebula

Main article: Serpent Nebula

Widow System

Main article: Widow
  • Scannable from Normandy
    • Nothing
  • This is the home of the Citadel. Many assignments can be completed here, some of which depend on your character's background selections. Please see the assignments page for a complete list.


Styx Theta

Main article: Styx Theta

Acheron System

Main article: Acheron


Erebus System

Main article: Erebus


Voyager Cluster

Main article: Voyager Cluster

Amazon System

Main article: Amazon


Columbia System

Main article: Columbia


Yangtze System

Main article: Yangtze
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