Mass Effect 3
Mass Effect 3

Main Story Walkthrough

Mass Effect 3 walkthrough covers the Prologue: Earth mission, teaching combat basics and introducing Husks and Cannibals as enemies you face.

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Main Story Walkthrough

The main story walkthrough for Mass Effect 3 guides players through the critical plot missions, encountering new enemy types and making crucial decisions. The Prologue: Earth mission introduces players to the Reaper invasion, forcing Commander Shepard into immediate action and setting the stage for the galaxy's fight for survival. This initial mission serves as a tutorial for basic combat and movement mechanics.

Prologue: Earth Full Walkthrough

Getting Started

This mission begins automatically when you start the game. After an introductory scene, you will be briefed by Admiral David Anderson. You can make dialogue choices that may earn Morality Points. A brief scene with either Kaidan or Ashley will occur, depending on previous game choices or character creation.

Walkthrough
  1. Follow Anderson: Once you control Shepard, follow Anderson along the building exterior. On-screen prompts will guide you through basic controls.
  2. First Encounter (Husks): Anderson will point out Husks scaling walls. Shoot them as instructed.
  3. Ladder and Second Husk Group: Climb down the ladder and proceed to the next building's roof. Another group of Husks will attempt to breach. Fire a few shots until you run out of ammo, then engage in close combat.
  4. Reaper Laser and Path: After defeating the final Husk, a Reaper in the distance will trace a laser beam, opening a new path.
  5. Inside the Building: Open the Med Kit among the rubble.
  6. Heavy Melee Kill: As you approach the door in the next room, a Husk will attack. Follow the on-screen prompt for a Heavy melee kill.
  7. Child in Vents: A cutscene will play involving a child in the vents. You will have a dialogue option before the child disappears.
  8. Follow Anderson: Follow Anderson across the wreckage.
  9. Resupply and Exit: Pick up ammo and reload your weapon. Follow Anderson out the window and around the corner.
  10. Platform Destruction: A ship will be destroyed by Reaper fire, causing a shockwave that destroys your platform, forcing you to lower levels.
  11. First Cannibal Encounter: Proceed through the wreckage to find two Alliance soldiers. A cutscene introduces Cannibals, mutated Batarians with arm cannons and grenades. They can cannibalize corpses to regain health and armor.
  12. Defeat Cannibals: Defeat the first three Cannibals.
  13. Radio Objective: Speak with the soldiers, who inform you about a radio in their gunship.
  14. Cross Bridge and Med Kit: Head across the makeshift bridge and turn left. Look for a Med Kit among the wreckage on the right.
  15. Second Cannibal Encounter: Around the corner, you will face more Cannibals, who will use grenades to flush you out of cover.
  16. Acquire M-8 Avenger and Radio: After dispatching the Cannibals, proceed to where they came from to find an M-8 Avenger assault rifle among corpses. Equip it and pick up the nearby radio to trigger the final encounter.
  17. Final Encounter: You will face waves of Cannibals while waiting for help. This encounter is scripted to end after a set duration.