Acquire all trophies.
Defeat a group of Spectre-level opponents on Normal, Hardcore, or Insanity.
Score 9999 points in the combat simulator on Normal, Hardcore, or Insanity.
Investigate a strange occurrence in the combat simulator.
Win a prize at one of the arcade games.
Throw a party for your friends.
Stop an out-of-control scheme before it's too late.
Infiltrate an enemy stronghold with your crew.
Go undercover to follow a lead.
Discover a plot against you.
Complete all the Command Center side-missions on Omega.
Find the Talon leader.
Free Omega from Cerberus occupation.
Use clues to pinpoint the exact location of an objective.
Uncover an ancient secret.
Rescue a civilian from Reaper forces.
Investigate a sinister conspiracy.
Learn more about the Prothean Empire.
Find all required intel to help Eden Prime's colonists.
Finish all multiplayer maps on Gold or all single-player missions on Insanity.
Promote a multiplayer character to the Galaxy at War or import an ME3 character.
Reach level 20 in multiplayer or level 60 in single-player.
Reach level 15 in multiplayer or level 50 in single-player.
Upgrade any weapon to level 10.
Complete three multiplayer matches or five N7 missions.
Complete one multiplayer match or two N7 missions.
Obtain two non-customizable suits of armor.
Finish all multiplayer maps or all N7 missions in single-player.
Start a character in multiplayer or customize a character in single-player.
Defeat a Harvester.
Hijack an Atlas mech.
Kill 10 guardians with headshots from the front while their shields are raised.
Kill a brute while it's charging you.
Set 100 enemies on fire with powers.
Lift 100 enemies off the ground with powers.
Overload the shields of 100 enemies.
Attain the highest level of readiness in each theater of war.
Escape a Reaper in the galaxy map.
Kill 100 enemies with melee attacks.
Kill 5,000 enemies.
Kill 1,000 enemies.
Kill 250 enemies.
Evolve any of your powers to rank 6.
Perform any combination of 50 biotic combos or tech bursts.
Establish or rekindle a romantic relationship.
Modify a weapon.
Finish the game on Insanity without changing difficulty after leaving Earth.
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Deliver most of the Galaxy at War assets to the final conflict.
Visit a store in the single-player campaign.
Mission accomplished.
Make the final assault.
Evacuate a scientific facility.
Stop a Cerberus kidnapping.
Discover an enemy's monstrous origin.
Send a warning across the galaxy.
Defeat an old adversary.
Extract ancient technology.
Win a political stand-off.
Disable a group of fighter squadrons.
Call down an orbital strike.
Sabotage a dreadnought.
Survive the swarm.
Explore a lost city.
Destroy an Atlas dropped from orbit.
Bring a veteran officer aboard.
Chase down an assassin.
Return to active duty.