Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
A House Divided	ME2: Hack a geth collective.	10
A Personal Touch	ME3: Modify a weapon.	10
AI Hacking Specialist	ME1: Use AI Hacking 25 times.	10
Against All Odds	ME2: Survive suicide mission.	50
Agent	ME2: Complete five missions discovered by scanning unexplored worlds.	25
Always Prepared	ME3: Obtain two non-customizable suits of armor.	5
Arbiter	ME3: Win a political stand-off.	25
Archivist	ME1: Find all primary Alien: Council Races, Extinct Races and Non-Council Races codex entries.	20
Asari Ally	ME1: Complete five missions with the asari squad member.	10
Barrier Mastery	ME1: Use biotic Barrier 25 times.	10
Battlemaster	ME2: Gain the loyalty of the krogan.	10
Big Game Hunter	ME2: Thresher Maw defeated.	10
Bringer of War	ME3: Chase down an assassin.	10
Broke, Blind, and Bedlam	ME2: Gain the loyalty of the thief.	15
Bruiser	Kill hundred enemies with melee attacks in Mass Effect 1, 2 or 3.	10
Cat's in the Cradle	ME2: Gain the loyalty of the Assassin.	10
Catharsis	ME2: Gain the loyalty of the biotic Convict.	10
Charismatic	ME1: Use Charm or Intimidate to resolve an impossible situation.	15
Colonial Savior	ME1: Complete the Bring Down the Sky mission.	75
Colony Defense	ME2: Defend a human colony from attack.	15
Combined Arms	ME3: Perform any combination of fifty biotic combos or tech bursts.	25
Completionist	ME1: Complete the majority of the game.	75
Council Legion of Merit	ME1: Complete Virmire.	25
Damping Specialist	ME1: Use Damping Field 25 times.	10
Digital Exorcist	ME2: Successfully shut down the rogue VI in Project Overlord.	50
Distinguished Service Medal	ME1: Complete Eden Prime.	25
Doppelganger	ME2: Help the Justicar resolve her mission.	10
Driven	ME3: Return to active duty.	5
Electronics Specialist	ME1: Use Shield Overload 25 times.	10
Executioner	ME3: Defeat an old adversary.	25
Eye of the Hurricane	ME3: Kill a brute while it's charging you.	10
Fact Finder	ME3: Discover an enemy's monstrous origin.	15
Fade Away	ME2: Gain the loyalty of Archangel.	10
First Aid Specialist	ME1: Use medi-gel fifty times.	10
Focused	ME3: Evolve any of your powers to rank 6.	25
Friend or Foe	ME2: Obtain geth technology.	10
Galactic Explorer	ME2: Visit 100% of the planets in an unexplored cluster.	75
Ghost Ship	ME2: Complete the investigation of a derelict alien vessel.	15
Ghost of the Father	ME2: Gain the loyalty of the Cerberus Operative.	10
Giant Killer	ME3: Defeat a harvester.	10
Gunsmith	ME3: Upgrade any weapon to level 10.	25
Hard Target	ME3: Call down an orbital strike.	15
Head Hunter	ME2: Perform thirty headshot kills with any weapon on humanoid targets.	10
Heart of Darkness	ME2: Confront the Shadow Broker.	50
Hijacker	ME3: Hijack an Atlas mech.	10
Honorarium of Corporate Service	ME1: Complete Noveria.	25
Incineration Specialist	ME2: Incinerate the armor of 25 enemies.	10
Insanity III	Complete all three games in Mass Effect Legendary Edition on Insanity without changing difficulty.	100
Insanity II	Complete two games in Mass Effect Legendary Edition on Insanity without changing difficulty.	75
Insanity I	Complete Mass Effect 1, 2 or 3 on Insanity without changing difficulty.	50
Krogan Ally	ME1: Complete five missions with the krogan squad member.	10
Last Resort	ME3: Stop an out-of-control scheme before it's too late.	50
Last Witness	ME3: Extract ancient technology.	25
Legend	ME3: Mission accomplished.	50
Liberator	ME3: Stop a Cerberus kidnapping.	15
Lift Mastery	ME1: Use biotic Lift 25 times.	10
Long Service Medal	Finish Mass Effect 1, 2 and 3 with the same character.	125
Lost and Found	ME3: Dispatch ten probes to retrieve people or resources in Reaper territory.	25
Mail Slot	ME3: Kill ten guardians with headshots from the front while their shields are raised.	10
Master and Commander	ME3: Deliver most of the Galaxy at War assets to the final conflict.	50
Medal of Exploration III	ME1: Land on eight uncharted worlds.	20
Medal of Exploration II	ME1: Land on four uncharted worlds.	20
Medal of Exploration I	ME1: Land on an uncharted world.	20
Medal of Heroism	ME1: Complete Feros.	25
Medal of Honor	ME1: Complete the game on any difficulty.	125
Merciless	ME2: Make twenty enemies scream as they fall or are set on fire.	10
Meritorious Service Medal	ME1: Complete Ilos.	25
Missing in Action	ME2: Save your crew from an overwhelming attack.	5
Mission Accomplished	ME2: Save humanity throughout the galaxy from certain annihilation.	125
Mobilizer	ME3: Bring a veteran officer aboard.	15
Neural Shock Specialist	ME1: Use Neural Shock 25 times.	10
No One Left Behind	ME2: Keep your team alive through the suicide mission.	75
Operative	ME2: Complete a mission discovered by scanning an unexplored world.	25
Overload Specialist	ME2: Disrupt the shields of 25 enemies.	10
Paramour III	Establish or rekindle a romantic relationship in all three games in Mass Effect Legendary Edition.	50
Paramour II	Establish or rekindle a romantic relationship in two games in Mass Effect Legendary Edition.	20
Paramour I	Establish a romantic relationship in Mass Effect 1, 2 or 3.	10
Party Crasher	ME3: Sabotage a dreadnought.	15
Pathfinder	ME3: Explore a lost city.	15
Patriot	ME3: Make the final assault.	25
Power Full	ME2: Evolve any power.	5
Principled	ME1: Accumulate 75% of total possible Paragon or Renegade points.	75
Problem Solver	ME3: Evacuate a scientific facility.	15
Pyromaniac	ME3: Set hundred enemies on fire with powers.	15
Quarian Ally	ME1: Complete five missions with the quarian squad member.	10
Recruit	Kill 250 enemies in Mass Effect 1, 2 or 3.	10
Revenge!	ME2: Gain the loyalty of the mercenary.	15
Sabotage Specialist	ME1: Use Sabotage 25 times.	10
Saboteur	ME3: Disable a group of fighter squadrons.	15
Savior	ME3: Free Omega from Cerberus Occupation.	25
Scholar	ME2: Unlock fifteen new Mass Effect 2 codex entries.	10
Scientist	ME2: Complete any research project in the Normandy's laboratory.	15
Search and Rescue	ME1: Locate Dr. T'soni in the Artemis Tau cluster.	25
Sentinel Ally	ME1: Complete five missions with the Alliance sentinel squad member.	10
Shield Breaker	ME3: Overload the shields of hundred enemies.	15
Shopaholic	ME3: Visit a store on the Citadel.	10
Singularity Mastery	ME1: Use biotic Singularity 25 times.	10
Sky High	ME3: Lift hundred enemies off the ground with powers.	15
Soldier Ally	ME1: Complete five missions with the Alliance soldier squad member.	10
Soldier	Kill 1,000 enemies in Mass Effect 1, 2 or 3.	15
Spectre Inductee	ME1: Become a Spectre.	15
Stasis Mastery	ME1: Use biotic Stasis 25 times.	10
Suicide Mission	ME2: Use the Omega 4 Relay.	15
Tactician	ME2: Hit twenty different targets with multiple biotic powers to combine the effects.	10
The Archangel	ME2: Successfully recruit Archangel.	10
The Assassin	ME2: Successfully recruit the Assassin.	10
The Convict	ME2: Successfully recruit the biotic Convict.	10
The Cure	ME2: Gain the loyalty of the Professor.	10
The Justicar	ME2: Successfully recruit the Justicar.	10
The Krogan	ME2: Successfully recruit the krogan.	10
The One and Only	ME3: Defeat a group of Spectre-level opponents on Normal, Hardcore, or Insanity.	50
The Prodigal	ME2: Gain the loyalty of the Cerberus Officer.	10
The Professor	ME2: Successfully recruit the Professor.	10
The Quarian	ME2: Successfully recruit the quarian.	10
Throw Mastery	ME1: Use biotic Throw 25 times.	10
Treason	ME2: Gain the loyalty of the quarian.	10
Tunnel Rat	ME3: Survive the swarm.	15
Turian Ally	ME1: Complete five missions with the turian squad member.	10
Under Pressure	ME3: Uncover an ancient secret.	50
Untouchable	ME3: Escape a Reaper in the galaxy map.	10
Very Elusive	ME2: Return to active duty.	10
Veteran	Kill 2,000 enemies in Mass Effect 1, 2 or 3.	25
Warp Mastery	ME1: Use biotic Warp 25 times.	10
Warp Specialist	ME2: Warp the barriers of 25 enemies.	10
Weapon Specialist	ME2: Fully upgrade a weapon.	15
Well Connected	ME3: Send a warning across the galaxy.	15
World Shaker	ME3: Destroy an Atlas dropped from orbit.	15