ME1: Complete Eden Prime

ME1: Become a Spectre

ME1: Land on an uncharted world

Kill 250 enemies in Mass Effect 1, 2 or 3

ME1: Locate Dr. T'soni in the Artemis Tau cluster

ME1: Complete 5 missions with the quarian squad member

ME1: Complete Noveria

ME1: Complete Feros

ME2: Save your crew from an overwhelming attack

ME1: Complete 5 missions with the turian squad member

ME2: Return to active duty

ME1: Complete Virmire

ME1: Complete the game on any difficulty

Kill 1,000 enemies in Mass Effect 1, 2 or 3

ME1: Complete Ilos

ME1: Land on 4 uncharted worlds

ME1: Use Charm or Intimidate to resolve an impossible situation in the game.

ME2: Make 20 enemies scream as they fall or are set on fire

ME2: Complete any research project in the Normandy's laboratory

ME2: Successfully recruit Archangel

ME2: Successfully recruit the Professor

ME2: Perform 30 headshot kills with any weapon on humanoid targets

ME2: Unlock 15 new Mass Effect 2 codex entries

ME1: Complete 5 missions with the Alliance soldier squad member

Establish a romantic relationship in Mass Effect 1, 2 or 3

ME1: Complete 5 missions with the asari squad member

ME2: Successfully recruit the biotic Convict

ME2: Complete a mission discovered by scanning an unexplored world

ME2: Defend a human colony from attack

ME2: Successfully recruit the krogan

ME2: Evolve any power

ME1: Accumulate 75% of total possible Paragon or Renegade points

ME1: Complete the Bring Down the Sky mission.

ME2: Gain the loyalty of the thief

ME3: Return to active duty.

Kill 2,000 enemies in Mass Effect 1, 2 or 3

ME1: Land on 8 uncharted worlds

ME1: Complete 5 missions with the Alliance sentinel squad member

ME2: Complete the investigation of a derelict alien vessel

ME2: Successfully recruit the Assassin

ME1: Complete 5 missions with the krogan squad member

ME2: Successfully recruit the Justicar

ME2: Successfully recruit the quarian

ME2: Gain the loyalty of the Cerberus Officer

ME3: Chase down an assassin.

ME3: Modify a weapon.

ME2: Gain the loyalty of the krogan

ME2: Gain the loyalty of the biotic Convict

ME2: Gain the loyalty of Archangel

ME2: Gain the loyalty of the Cerberus Operative

ME2: Gain the loyalty of the Professor

ME2: Confront the Shadow Broker

ME3: Visit a store on the Citadel.

ME2: Use the Omega 4 Relay

ME2: Obtain geth technology

ME2: Gain the loyalty of the quarian

ME2: Thresher Maw defeated

ME2: Successfully shut down the rogue VI in Project Overlord

ME3: Bring a veteran officer aboard.

ME3: Evolve any of your powers to rank 6.

ME2: Save humanity throughout the galaxy from certain annihilation

ME2: Survive suicide mission

ME2: Gain the loyalty of the Assassin

ME2: Help the Justicar resolve her mission

ME2: Visit 100% of the planets in an unexplored cluster

ME2: Gain the loyalty of the mercenary

ME3: Kill a brute while it's charging you.

ME3: Defeat a harvester.

ME2: Hack a geth collective

ME2: Complete 5 missions discovered by scanning unexplored worlds

ME3: Destroy an Atlas dropped from orbit.

ME3: Escape a Reaper in the galaxy map.

ME3: Explore a lost city.

ME3: Survive the swarm.

ME3: Win a political stand-off.

ME3: Stop a Cerberus kidnapping.

ME3: Free Omega from Cerberus Occupation.

ME3: Sabotage a dreadnought.

ME3: Call down an orbital strike.

ME3: Extract ancient technology.

ME3: Discover an enemy's monstrous origin.

ME3: Evacuate a scientific facility.

ME3: Dispatch 10 probes to retrieve people or resources in Reaper territory.

ME3: Uncover an ancient secret.

ME3: Stop an out-of-control scheme before it's too late.

ME2: Fully upgrade a weapon

ME3: Disable a group of fighter squadrons.

ME3: Send a warning across the galaxy.

Establish or rekindle a romantic relationship in two games in Mass Effect Legendary Edition

ME1: Find all primary Alien: Council Races, Extinct Races and Non-Council Races codex entries

ME1: Complete the majority of the game

ME3: Defeat an old adversary.

ME3: Make the final assault.

ME1: Use medi-gel 50 times

ME3: Mission accomplished.

ME3: Deliver most of the Galaxy at War assets to the final conflict.

ME2: Keep your team alive through the suicide mission

ME3: Set 100 enemies on fire with powers.

Finish Mass Effect 1, 2 and 3 with the same character

ME3: Perform any combination of 50 biotic combos or tech bursts.

ME3: Kill 10 guardians with headshots from the front while their shields are raised.

ME1: Use Sabotage 25 times

ME1: Use Shield Overload 25 times

ME1: Use biotic Throw 25 times

ME3: Lift 100 enemies off the ground with powers.

ME3: Obtain two non-customizable suits of armor.

Establish or rekindle a romantic relationship in all three games in Mass Effect Legendary Edition

ME3: Hijack an Atlas mech.

Kill 100 enemies with melee attacks in Mass Effect 1, 2 or 3

ME2: Disrupt the shields of 25 enemies

ME1: Use biotic Warp 25 times

ME1: Use biotic Barrier 25 times

ME1: Use biotic Lift 25 times

ME3: Overload the shields of 100 enemies.

ME1: Use Damping Field 25 times

ME1: Use biotic Singularity 25 times

Complete Mass Effect 1, 2 or 3 on Insanity without changing difficulty

ME2: Incinerate the armor of 25 enemies

ME2: Warp the barriers of 25 enemies

ME2: Hit 20 different targets with multiple biotic powers to combine the effects

ME1: Use biotic Stasis 25 times.

ME3: Upgrade any weapon to level 10.

Complete two games in Mass Effect Legendary Edition on Insanity without changing difficulty

ME1: Use AI Hacking 25 times

Complete all three games in Mass Effect Legendary Edition on Insanity without changing difficulty

ME1: Use Neural Shock 25 times

ME3: Defeat a group of Spectre-level opponents on Normal, Hardcore, or Insanity.