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Missions are quests which advance the main storyline in Mass Effect, Mass Effect 2, and Mass Effect 3. The list contains all of the missions available within the game, and indicates how their names will change as the story progresses. Click on the links below for detailed walkthroughs.

Note: Most mission names below are linked to the relevant section of the walkthrough rather than their own pages. Because of the intertwined nature of most missions, the link may not lead to a section specifically about the mission name but you will certainly find relevant information.

See also: Assignments, Mass Effect Guide, Mass Effect System Guide, Storyline

For an alphabetical list of missions see Category:Missions; for locations see Category:Mission Locations.

Mass Effect

Missions are listed mostly in the order they are received although some of the name updates happen after you receive another mission. Note that these missions are listed as the initially appear in the Journal, the names of missions do change as the game progresses.

Prologue: On the Normandy

→ Prologue: Find the Beacon

→ Citadel: Wrex

→ Feros: The Thorian

→ Feros: Colony Saved

Noveria: Geth Interest

→ Noveria: Matriarch Benezia

→ Noveria: Death of a Matriarch

→ Virmire: Assault

Ilos: Find the Conduit

→ Ilos: Trench Run

Race Against Time

→ Race Against Time: Sovereign

→ Race Against Time: Conduit

→ Race Against Time: Final Battle

Mass Effect 2

Plot missions

These are the missions corresponding to the main story line, in time order (considering the earliest time you can acquire them). To clarify the time line, the main "Stop the Collectors" mission has been divided into its different sub-parts, as they appear when developing it in the Journal.

Prologue: Save Joker

→ Prologue: Awakening

→ Stop the Collectors: Defeat the Collectors

→ Collector Base: Infiltration

→ Collector Base: The Long Walk

Optional missions

→ Illium: Liara: The Observer

Dossier missions

The Illusive Man provides Commander Shepard with several leads on potential teammates.

Loyalty missions

Loyalty missions may be skipped. This will not hinder the progression of the main story line. However, you should be aware that doing this could seriously impact the performance of your team and alter the final outcome.

Downloadable Content

Lair of the Shadow Broker (Labelled Give Liara Intel on the Galaxy Map)

Mass Effect 3

Plot Missions

Missions are listed in the order they are received.

Galaxy at War Missions

Few of the following missions are required, however, they will significantly increase your military preparedness for the final battle.

Downloadable Content Missions

Priority: Eden Prime (Labeled on the Galaxy Map as "Recover Prothean Artifact")

Downloadable Content Galaxy At War Missions

Eden Prime: Resistance Movement