| Achievements |
| Complete each achievement to get the allotted gamerscore. |
| Action | Result |
| Return to active duty. | Driven (5) |
| Chase down an assassin. | Bringer of War (10) |
| Bring a veteran officer aboard. | Mobilizer (15) |
| Destroy an Atlas dropped from orbit. | World Shaker (15) |
| Explore a lost city. | Pathfinder (15) |
| Survive the swarm. | Tunnel Rat (15) |
| Sabotage a dreadnought. | Party Crasher (15) |
| Call down an orbital strike. | Hard Target (15) |
| Disable a group of fighter squadrons. | Saboteur (15) |
| Win a political stand-off. | Arbiter (25) |
| Extract ancient technology. | Last Witness (25) |
| Defeat an old adversary. | Executioner (25) |
| Send a warning across the galaxy. | Well Connected (15) |
| Discover an enemy's monstrous origin. | Fact Finder (15) |
| Stop a Cerberus kidnapping. | Liberator (15) |
| Evacuate a scientific facility. | Problem Solver (15) |
| Make the final assault. | Patriot (25) |
| Mission accomplished. | Legend (50) |
| Visit a store in the single-player campaign. | Shopaholic (10) |
| Deliver most of the Galaxy at War assets to the final conflict. | Master and Commander (50) |
| Dispatch 10 probes to retrieve people or resources in Reaper territory. | Lost and Found (25) |
| Complete Mass Effect 3 twice, or once with a Mass Effect 2 import. | Long Service Medal (50) |
| Finish the game on Insanity without changing difficulty after leaving Earth. | Insanity (75) |
| Modify a weapon. | A Personal Touch (10) |
| Establish or rekindle a romantic relationship. | Paramour (25) |
| Perform any combination of 50 biotic combos or tech bursts. | Combined Arms (25) |
| Evolve any of your powers to rank 6. | Focused (25) |
| Kill 250 enemies. | Recruit (10) |
| Kill 1,000 enemies. | Soldier (15) |
| Kill 5,000 enemies. | Veteran (25) |
| Kill 100 enemies with melee attacks. | Bruiser (10) |
| Escape a Reaper in the galaxy map. | Untouchable (10) |
| Attain the highest level of readiness in each theater of war. | Defender (25) |
| Overload the shields of 100 enemies. | Overload Specialist (15) |
| Lift 100 enemies off the ground with powers. | Sky High (15) |
| Set 100 enemies on fire with powers. | Pyromaniac (15) |
| Kill a brute while it's charging you. | Eye of the Hurricane (10) |
| Kill 10 guardians with headshots from the front while their shields are raised. | Mail Slot (10) |
| Hijack an Atlas mech. | Hijacker (10) |
| Defeat a harvester. | Giant Killer (10) |
| Start a character in multiplayer or customize a character in single-player. | Enlisted (5) |
| Finish all multiplayer maps or all N7 missions in single-player. | Tour of Duty (20) |
| Obtain two non-customizable suits of armor. | Always Prepared (10) |
| Complete one multiplayer match or two N7 missions. | Tourist (5) |
| Complete three multiplayer matches or five N7 missions. | Explorer (15) |
| Upgrade any weapon to level 10. | Gunsmith (25) |
| Reach level 15 in multiplayer or level 50 in single-player. | Almost There (15) |
| Reach level 20 in multiplayer or level 60 in single-player. | Peak Condition (25) |
| Promote a multiplayer character to the Galaxy at War or import an ME3 character. | Battle Scarred (25) |
| Finish all multiplayer maps on Gold or all single-player missions on Insanity. | Unwavering (50) |