Defeat a group of Spectre-level opponents on Normal, Hardcore, or Insanity.
4.9%
Very rare
Finish the game on Insanity without changing difficulty after leaving Earth.
5.3%
Rare
Investigate a strange occurrence in the combat simulator.
5.8%
Rare
Score 9999 points in the combat simulator on Normal, Hardcore, or Insanity.
6.7%
Rare
Les bases de données, les classements et les noms des entrées sont en anglais : c'est ainsi qu'ils arrivent des sources — Steam, Twitch, les boutiques — et les traduire voudrait dire les réécrire, donc les inventer.
Finish all multiplayer maps on Gold or all single-player missions on Insanity.
7.1%
Rare
Complete all the Command Center side-missions on Omega.
7.8%
Rare
Kill 5,000 enemies.
10.5%
Rare
Win a prize at one of the arcade games.
11.1%
Rare
Overload the shields of 100 enemies.
11.2%
Rare
Attain the highest level of readiness in each theater of war.
13.9%
Rare
Promote a multiplayer character to the Galaxy at War or import an ME3 character.
13.9%
Rare
Upgrade any weapon to level 10.
14.1%
Rare
Hijack an Atlas mech.
14.2%
Rare
Use clues to pinpoint the exact location of an objective.
16.6%
Rare
Throw a party for your friends.
16.8%
Rare
Uncover an ancient secret.
17.8%
Rare
Stop an out-of-control scheme before it's too late.
17.9%
Rare
Infiltrate an enemy stronghold with your crew.
18%
Rare
Go undercover to follow a lead.
18.1%
Rare
Rescue a civilian from Reaper forces.
18.1%
Rare
Discover a plot against you.
18.3%
Rare
Free Omega from Cerberus Occupation.
18.8%
Rare
Investigate a sinister conspiracy.
18.9%
Rare
Find the Talon leader.
19.2%
Rare
Kill 100 enemies with melee attacks.
19.4%
Rare
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
20.5%
Uncommon
Deliver most of the Galaxy at War assets to the final conflict.
22.3%
Uncommon
Find all required intel to help Eden Prime's colonists.
22.3%
Uncommon
Reach level 20 in multiplayer or level 60 in single-player.
24%
Uncommon
Obtain two non-customizable suits of armor.
24.4%
Uncommon
Lift 100 enemies off the ground with powers.
24.8%
Uncommon
Mission accomplished.
25.1%
Uncommon
Kill 10 guardians with headshots from the front while their shields are raised.
25.2%
Uncommon
Perform any combination of 50 biotic combos or tech bursts.
26.6%
Uncommon
Make the final assault.
26.6%
Uncommon
Defeat an old adversary.
27.5%
Uncommon
Establish or rekindle a romantic relationship.
28.2%
Uncommon
Send a warning across the galaxy.
28.7%
Uncommon
Dispatch 10 probes to retrieve people or resources in Reaper territory.
29%
Uncommon
Disable a group of fighter squadrons.
29.2%
Uncommon
Extract ancient technology.
29.3%
Uncommon
Call down an orbital strike.
30.5%
Uncommon
Finish all multiplayer maps or all N7 missions in single-player.
30.7%
Uncommon
Discover an enemy's monstrous origin.
30.9%
Uncommon
Evacuate a scientific facility.
31%
Uncommon
Sabotage a dreadnought.
31.8%
Uncommon
Win a political stand-off.
34%
Uncommon
Survive the swarm.
34.4%
Uncommon
Explore a lost city.
34.6%
Uncommon
Stop a Cerberus kidnapping.
34.8%
Uncommon
Learn more about the Prothean Empire.
35.1%
Uncommon
Escape a Reaper in the galaxy map.
35.4%
Uncommon
Defeat a harvester.
35.8%
Uncommon
Set 100 enemies on fire with powers.
36.6%
Uncommon
Kill 1,000 enemies.
37.1%
Uncommon
Complete three multiplayer matches or five N7 missions.
37.3%
Uncommon
Destroy an Atlas dropped from orbit.
37.3%
Uncommon
Reach level 15 in multiplayer or level 50 in single-player.