Mass Effect Legendary Edition 100% Achievement Guide

Introduction

Before we dive into the thick of things, I'd like to give a very broad advice if you want to unlock most achievements with ease: Do Everything. Every Mission, every Assignment, explore every planet, talk to every NPC, exhaust every dialogue option, kill every enemy.

There are several reasons as to why. First, some achievements actually require you to complete most missions in a specific game (e.g."Completionist" in Mass Effect or "Master and Commander" in Mass Efect 3). Second, a good chunk of achievements are really straightforward and will unlock without you even realising it as long as you don't skip anything. Not all of them are though. Several of them rascals are not only missable but also quite tricky so make sure to Ctrl+F "Missable" to look them up beforehand. And last but not least, because the games and their stories are incredible and worth experiencing.

A note on spoilers. Although I'll try to avoid them as much as possible and mark them as such when I can't, this ultimately won't be possible for several of the achievements. If you've never played Mass Effect before and you really don't want any parts of the story ruined, I would advise to finish the trilogy before going over this guide for any achievements you've missed.

Finally, remember to save often. These are rich and complex games. Although I'll try my best, I probably won't be able to cover every single outcome of every single situation and things may go wrong for you, or bugs may happen, potentially preventing you from unlocking certain achievements. If that ever happens, either you'll be able to load a previous save or you'll have to unlock them in another playthrough.

So, without further ado, welcome to the Mass Effect Legendary Edition 100% Achievement Guide.

Legendary Edition

Although most achievements are specific to their respective games, eleven of them span the entire trilogy.

"This is madness!"

Insanity I

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

Insanity II

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

Insanity III

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

There are two ways to go about doing these. First, you can choose to go for a single playthrough on "Insanity" from the get go. Be aware that this will be a serious challenge. I'd recommend this method to players who have already played through the trilogy before and/or to people who don't want to play through all three games twice.

Or, and I'd recommend this to new players of the series, you can start on an easier difficulty to get accustomed to the games and unlock a majority of the achievements and then play through the games a second time on "Insanity". Considering you'd have unlocked most achievements the first time around, you'd be able to rush through the main storyline. Starting the second playthrough on New Game+ would also simplify things to an extent.

The choice is ultimately yours.

Long Service Medal

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

I'll throw this one in here as it's related to finishing all three games. When starting Mass Effect 2, make sure to import your character from Mass Effect instead of creating a new one. Do it again when starting Mass Effect 3.

"Make Love, not War."

An important part of the Mass Effect games are the romance substories. In each game, you'll be able to chose and get close to one of several characters which will lead to a steamy scene, usually happening before the last mission or two.

Unlocking this scene is fairly easy, simply make sure to talk to whoever you want to romance most after every mission to check if they have any new available dialogue option. During said conversation, you'll want to chose the Paragon (blue) dialogue option if available which often leads you to say something nice.

If you pursue several of them at the same time, they will eventually confront you and ask you to choose. Completing their Loyalty Missions (which you'll need to do for other achievements anyway) is usually required.

Paramour I (Missable)

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

Mass Effect has three romanceable characters.

Male Shepard can romance Ashley.

Female Shepard can romance Kaidan.

Both of them can romance Liara. Spoilers

During the mission on Virmire, you'll be faced with a choice to either assist Ashley or Kaidan once Saren attacks. If you have your heart set on romancing either of these characters, make sure to assist said character as the other one will ultimately perish in a nuclear blast.

Paramour II (Missable)

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

Mass Effect 2 has six romanceable characters for the purpose of unlocking the achievement.

Female Shepard can romance Garrus, Jacob and Thane.

Male Shepard can romance Jack, Miranda and Tali. (If you import your Mass Effect save in which you romanced Liara, you can continue said romance. However, in the original Mass Effect 2 game, this option did not unlock the Paramour achievement, this is yet to be confirmed for the Legendary Edition.

The same limitation applies to three other romantic interests which are Kelly Chambers, Morinth and Samara. If you do decide to romance Morinth, be careful. She... bites.)

Paramour III (Missable)

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

Mass Effect 3 has ten romanceable characters for the purpose of unlocking the achievement.

Female Shepard can establish a romance with Samantha. Romance with Garrus can only be rekindled from Mass Effect 2.

Male Shepard can establish a romance with Ashley and Steve. Romances with Jack, Miranda and Tali can only be rekindled from Mass Effect 2.

Both of them can establish a romance with Kaidan and Liara. Romance with Kelly can only be rekindled from Mass Effect 2.(Five more characters can be romanced although they did not grant the Paramour achievement in the original Mass Effect 3. They are James and Javik for female Shepard. Thane is also available only if continued from Mass Effect 2. Diana can be romanced by both as well as Samara but only if continued from Mass Effect 2. Yet to be determined if this also applied to the Legendary Edition.)

(For additional information about Romances, check the Wiki page[masseffect.fandom.com] on the subject as it wouldn't be sensible or useful to cover everything in this guide.)

"War. War Never Changes."

Recruit

Kill 250 enemies in Mass Effect 1, 2 or 3

Soldier

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

Veteran

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

I personally wouldn't sweat too much about farming these as there should be enough enemies in all three games to reach 2,000 kills in a single playthrough as long as you don't rush through the main storyline (which you shouldn't do anyway).

Bruiser

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

This one might be a little bit more tricky however, especially if you're playing on "Insanity" or if you're playing a class focused on long ranged combat. Although I would still try to get as many melee kills as possible during the entire playthrough (Husks are particularly good targets), you may want to hold off on them until you reach Mass Effect 3. As part of the Citadel DLC, a combat simulator was introduced allowing the player to fight enemies in a controlled environment.

Mass Effect

Completionist

ME1: Complete the majority of the game

The majority here means completing 50 Missions/Assignements out of the 76 available in the game. Heed my advice to "Do Everything. Every Mission, every Assignment" and you'll get this no problem.

└ Story

These achievements are story related and can't be missed.

Distinguished Service Medal

ME1: Complete Eden Prime

Spectre Inductee

ME1: Become a Spectre

Search and Rescue

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

Unlocked by completing the mission "Find Liara T'Sonil".

Medal of Heroism

ME1: Complete Feros

Honorarium of Corporate Service

ME1: Complete Noveria

Council Legion of Merit

ME1: Complete Virmire

[/previewimg] Meritorious Service Medal

ME1: Complete Ilos

Medal of Honor

ME1: Complete the game on any difficulty

└ Squad

These achievements are listed in more of less the order you'll unlock the squad members needed to obtain them. With 76 Missions/Assignments in the game, you should have no problem getting all of those as long as you rotate your squad members as soon as you unlock their respective achievements. Although unlikely, do make sure you unlock all six of them as soon as possible and before completing a majority of the Missions/Assignments as this could lock you out of getting them.

Sentinel Ally (Missable)

ME1: Complete 5 missions with the Alliance sentinel squad member

This refers to Kaidan Alenko. He will be the first squad member you get access to at the very beginning of the game.

Soldier Ally (Missable)

ME1: Complete 5 missions with the Alliance soldier squad member

This refers to Ashley Williams. You will unlock her during the very first mission on Eden Prime. If you keep her and Kaidan in your squad for the first few missions on the Citadel, both of these achievements should unlock early on.

Turian Ally (Missable)

ME1: Complete 5 missions with the turian squad member

Krogan Ally (Missable)

ME1: Complete 5 missions with the krogan squad member

Quarian Ally (Missable)

ME1: Complete 5 missions with the quarian squad member

These refer to Garrus Vakarian, Urdnot Wrex and Tali'Zorah nar Rayya respectively. You'll unlock all three of them during your first visit on the citadel, a few Missions in and before becoming a Spectre.

Spoilers

I would advise to complete 5 Missions with Wrex early on as there is a chance he dies during a mission on Virmire.

Asari Ally (Missable)

ME1: Complete 5 missions with the asari squad member

This refers to Liara T'Soni. You'll unlock her as a squad member after you finish the Missions on the planet Therum. I would advise doing her mission "Find Liara T'Soni" as soon as possible regardless. As you strongest biotic ally, she will be very valuable in unlocking some potentially grindy achievements we'll cover later.

└ Talents

For the purpose of these achievements, both your own uses and the ones you order from your squadmates count. In that regard, here's a list of who has access to what.

Biotic

KaidanAshleyGarrusWrexTaliLiaraBarrierYesYesYesLiftYesYesSingularityYesStasisYesYesYesThrowYesYesYesWarpYesYes

Tech

KaidanAshleyGarrusWrexTaliLiaraHackingYesDampingYesYesElectronics (Overload)YesYesYesYesMedecine (Neural) Shock)YesDecryption (Sabotage)YesYesYes

Barrier Mastery

ME1: Use biotic Barrier 25 times

Lift Mastery

ME1: Use biotic Lift 25 times

Singularity Mastery

ME1: Use biotic Singularity 25 times

Stasis Mastery

ME1: Use biotic Stasis 25 times

Throw Mastery

ME1: Use biotic Throw 25 times

Warp Mastery

ME1: Use biotic Warp 25 times

Those are the six biotic talents available to the Adept class. Liara also has access to all of them.

Except for Barrier, they all need to be used on a target to count. In this regard, enemies but also Citadel Rapid Transport terminals count as targets if you wish for a way to farm those outside of combat.

"Computer, Computer, Yep, Yep, Yep, Yep, Yep."

AI Hacking Specialis

ME1: Use AI Hacking 25 times

Damping Specialist

ME1: Use Damping Field 25 times

Electronics Specialist

ME1: Use Shield Overload 25 times

Neural Shock Specialist

ME1: Use Neural Shock 25 times

Sabotage Specialist

ME1: Use Sabotage 25 times

Those are the five Tech talents available to the Engineer class. Tali also has access to all of them except Neural Shock, you'll want to bring Kaidan for this last one.

Neural Shock and AI Hacking need to be used on an actual enemy to count although targeting the Mako also work for Neural Shock, simply land on a planet and aim at it or order Kaidan to do it for you.

Damping, Overload and Sabotage do not require any target and can be used while running around the Citadel.

"You get Healed! You get Healed! Everybody gets Healed."

First Aid Specialist

ME1: Use medi-gel 50 times

You can use medi-gel to heal yourself and/or you allies. If you play on "Insanity" you shouldn't have too much of a problem getting this in a single playthrough. On lower difficulties, you may have to farm this at some point unless you've planned to play the game a second time as the progress would carry over.

└ Misc.

Archivist (Missable)

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

Although there are several ways you can get each of these codex entries, I will only list one of them down below (usually the earliest opportunity) to try and keep this guide from being longer than it ultimately will be. Keep in mind the advice from earlier to "Talk to every NPC, exhaust every dialogue option".

These are sorted in a roughly chronological order, within their subcategories. By following this list, you should be able to unlock this achievement during you first trip to the Citadel following Eden Prime.

Council Races:

Asari: unlocked automatically after your first meeting with the Council.

Salarian: unlocked automatically after your first meeting with the Council.

Turian: unlocked automatically after your first meeting with the Council.

Extinct Races:

Protheans: during a conversation with Nihlus and Captain Anderson at the very beginning of the game, before Eden Prime ("Investigate", "Protheans").

Rachni: on the Citadel, access the Avina terminal (hologram) near the Krogan statue, close to the Emporium ("Investigate", "Rachni Wars").

Non-Council Races:

Geth: during a conversation with Ashley after you meet her for the first time ("Investigate", "Geth").

Keepers: on the citadel, access the Avina terminal located next to a Keeper, near the elevator leading to the Council Tower ("Investigate", "Keepers").

Elcor and Volus: on the Citadel, find their embassy located next to the Human one. In the room, talk to ambassador Calyn (the big one ("Investigate", "Elcor") and ambassador Din Korlack (the small one ("Investigate", "Volus").

Hanar: on the Citadel, inside the Emporium, talk to the Hanar shopkeeper ("Investigate", "Speech")

Krogan - unlocked automatically when Wrex is recruited.

Quarian - unlocked automatically when Tali is recruited.

Batarian: right after becoming a Spectre, talk to Anderson in front of the Normandy ("You and Saren have a past"; "What happened").

"You have to see it for yourself"

Principled (Missable)

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

Blue or Red, a classic. In Mass Effect, during various conversations, you'll encounter Blue (Top-Left) and Red (Bottom-Left) dialogue options relating to the Charm and Intimidate talents which you'll need to level up to be able to use but will grant a decent amount of points to either Paragon or Renegade respectively.

The Charm/Intimidate options aren't the only way to earn points though. Doing and saying what you perceive to be the right thing during Missions will also earn you Paragon points. And so is being a jerk for Renegade.

Paragon (blue choices) will lead you to be a more kind and compassionate Shepard.

Renegade (red choices) will lead you to be a ruthless jerk. Also, scars.

Decide early on which kind of Shepard you want to be and you'll get this achievement eventually. With that being said, there are enough opportunities in the game to increase your score one way or the other as long as you complete most Assignments so you shouldn't be afraid to choose the opposite dialogue option once in a while if you prefer the outcome, just don't overdo it.

Charismatic (Missable)

ME1: Use Charm or Intimidate to resolve an impossible situation

Charm and Intimidate are talents used to get people to do things they may not have wanted to do originally. Although they correspond to Paragon and Renegade respectively, they aren't exclusive to them which means you can be a Charming Renegade if you so desire.

Be mindful you'll need to have more or less maxed out the skill (Charm or Intimidate) for these to work so try leveling either one early on.

That being said, there are only two opportunities in the whole game to unlock this achievement and they both are key moments in the story so, spoilers-ish.

The first one is during a Mission on Virmire. Wrex will be pissed off on the subject of the genophage. Once he leaves, talk to Ashley and tell her not to interfere before you go over and talk to Wrex. During the second conversation with him is when you'll need to use the Charm/Intimidate option thus defusing the situation. (if you complete "Wrex: Family Armor" before going to Virmire, you won't need Charm/Intimidate although you'll still get the achievement. There is a way Wrex gets killed during this scene, be mindful of your dialogue options.

The other is at the very end of the game, during the final boss fight. If you don't want to be spoiled, just keep an eye out for three different Charm/Intimidate dialogue options happening one after the other during a key moment of the mission.

Before a fight even begins, you'll have a conversation with Saren. Simply choose the Charm or Intimidate options whenever they appear on the left. If successful, he will shoot himself and spare you a complicated fight, especially on "Insanity".

"Location, Location, Location."

Medal of Exploration I

ME1: Land on an uncharted world

Medal of Exploration II

ME1: Land on 4 uncharted worlds

Medal of Exploration III

ME1: Land on 8 uncharted worlds

There are more than enough planets in the game you can land on and drive around on with the Mako. You probably will get these naturally by completing Missions and Assignments.

RIP Pinacle Station

Colonial Savior (Missable)

ME1: Complete the Bring Down the Sky mission.

This refers to the only DLC mission present in the game. Land on Asteroid X57 located inside the Asgard System in the Exodus Cluster and complete the Mission there.

Mass Effect 2

For the love of everything you hold dear, save often. Several missions can go ways you don't want to when it comes to getting every achievement so you'll love being able to load and try again.

Also, this is the first time of many I'm going to say this and I won't go into details here but keep in mind that you should complete loyalty missions as early as possible.

Focusing on either Paragon or Renegade from the beginning instead of doing a bit of both will potentially save you some trouble later on.

└ Story

These achievements are story related and except for three of them, they can't be missed.

Missing in Action

ME2: Save your crew from an overwhelming attack

Very Elusive

ME2: Return to active duty

The Archangel

ME2: Successfully recruit Archangel

Unlocked by completing the mission "Dossier: The Archangel".

The Convict

ME2: Successfully recruit the biotic Convict

Unlocked by completing the mission "Dossier: The Convict".

The Krogan

ME2: Successfully recruit the krogan

Unlocked by completing the mission "Dossier: The Warlord".

The Professor

ME2: Successfully recruit the Professor

Unlocked by completing the mission "Dossier: The Professor".

Colony Defense

ME2: Defend a human colony from attack

Unlocked by completing the mission "Horizon".

The Assassin

ME2: Successfully recruit the Assassin

Unlocked by completing the mission "Dossier: The Assassin".

The Justicar

ME2: Successfully recruit the Justicar

Unlocked by completing the mission "Dossier: The Justicar".

The Quarian

ME2: Successfully recruit the quarian

Unlocked by completing the mission "Dossier: The Quarian".

Ghost Ship

ME2: Complete the investigation of a derelict alien vessel

Unlocked by completing the mission "Collector Ship".

"We're in the Endgame Now"

Warning: Make sure you've completed everything you need to (Loyalty Missions, Ship Upgrades (covered under "No One Left Behind", don't skip this), grind, etc.) before starting this next mission ("Reaper IFF") as a countdown should begin soon after you complete it and things will happen to the Normandy's Crew if you delay it (which shouldn't prevent you from getting the achievement but the way they die is quite gruesome). Delay here means doing any other Mission or Assignment instead of going through the Omega 4 Relay. There is a possible grace period of a couple Missions but the way the game decides it is apparently iffy so I wouldn't count on it. This is extremely important for the following achievements.

Friend or Foe (Missable)

ME2: Obtain geth technology

At the end of the Mission "Reaper IFF", keep the captured Geth by deciding to go talk to it when faced with a choice to give him to Cerberus.

You should activate him immediately and do his loyalty mission first thing after that mission.

Suicide Mission

ME2: Use the Omega 4 Relay

Against All Odds (Missable)

ME2: Survive suicide mission

I marked this as Missable but you'd actually have to try and do the complete opposite of what needs to be done for the next achievement to not unlock it so don't sweat it.

No One Left Behind (Missable)

ME2: Keep your team alive through the suicide mission

Alright, this is it. This is the big one. Save before this Mission just in case something goes wrong.

First and foremost, you need to install all three available Normandy upgrades BEFORE you go through the Omega 4 relay.

Tali provides the Heavy Ship Armor.

Jacob provides the Multicore Shielding.

Garrus provides the Thanix Cannon. If you forget any of these people are going to die before you even reach your destination, thus locking you out of the achievement.

This is where all those loyalty Missions you've completed are going to become useful. If you didn't finish some of them, characters for whom you didn't are more likely to die.

Note: During the course of the game, two confrontations are going to happen at some point after you complete their respective loyalty missions. The first one between Jack and Miranda, the other between Legion and Tali. In order to NOT have to side with either of them and therefore lose their loyalty, you will need enough Paragon or Renegade points to have access to either the Charm or Intimidate dialogue options. If for some reasons you don't have access to said options because your points are too low, you'll be able to talk to the character you didn't side with once you do have enough points to make them loyal again.

Now, for the most important part: who goes where. Although there are several ways to go about this, the list down below has been proven to work. Let me know in the comment if it didn't for you and we'll try and figure it out.

Collector Base Infiltration:

Tech Specialist: choose Legion only if you had time to do his loyalty Mission, otherwise choose Tali or Kasumi.

Diversion Squad Leader: choose Garrus (Jacob and Miranda would also be fine).

The Long Walk

Biotic Specialist: choose Samara/Morinth (Jack would also be fine).

Second Team: choose Garrus (Jacob and Miranda would also be fine).

Escort for Survivors: choose Mordin.

When it comes time to choose your personal squad for the final part, you should take weaker characters and let tankier ones like Zaeed and Grunt hold the line.

Now, I'm going to sound like a broken record but if you made sure to complete everybody's Loyalty Mission, the defensive score of the group holding the line should be high enough for a perfect Mission worthy of the achievement's name.

Good luck.

Mission Accomplished

ME2: Save humanity throughout the galaxy from certain annihilation

You've finished the game, congratulations.

└ Loyalty Missions

Reminder: During the course of the game, two confrontations are going to happen at some point after you complete their respective loyalty missions. The first one between Jack and Miranda, the other between Legion and Tali. In order to NOT have to side with either of them and therefore lose their loyalty, you will need enough Paragon or Renegade points to have access to either the Charm or Intimidate dialogue options. If for some reasons you don't have access to said options because your points are too low, you'll be able to talk to the character you didn't side with once you do have enough points to make them loyal again. I'd still recommend to push said loyalty missions for last, when your Paragon/Renegade is high enough.

A House Divided (Missable)

ME2: Hack a geth collective

This refers to Legion ("Legion: A House Divided"). I already covered it above but just in case, at the end of the "Reaper IFF" mission, choose to talk to it in order to keep it. The first thing you do right after that should be to talk to him again on your ship to unlock his loyalty mission.

This should also decidedly be the last loyalty mission related achievement you get. Remember what I said earlier about doing every loyalty mission before you even think of starting "Reaper IFF".

Battlemaster (Missable)

ME2: Gain the loyalty of the krogan

This refers to Grunt ("Grunt: Rite of Passage"). Although not a proper loyalty mission achievement, this next one can be unlocked at the end of Grunt's quest.

ME2: Thresher Maw defeated This is marked as missable because you do not need to kill it in order to finish the mission, only to survive it. Well, you're going to kill it anyway. Armor piercing ammo and Incendiary ammo will be useful as its health is entirely armor. Good Luck.

Broke, Blind, and Bedlam (Missable)

ME2: Gain the loyalty of the thief

This refers to Kasumi ("Kasumi: Stealing Memory").

Catharsis (Missable)

ME2: Gain the loyalty of the biotic Convict

This refers to Jack ("Jack: Subject Zero").

Cat's in the Cradle (Missable)

ME2: Gain the loyalty of the Assassin

This refers to Thane ("Thane: Sins of the Father"). This mission can be failed leading you to not acquire Thane's loyalty so remember to save beforehand. In order to succeed, you'll need to prevent Thane's son from assassinating his target (either by preventing the death or killing the target yourself through the renegade option).

Doppelganger (Missable)

ME2: Help the Justicar resolve her mission

This refers to Samara ("Samara: The Ardat-Yakshi"). Another mission with potential for failure.

Honestly, this mission is tricky enough and overall a pain in the ass I'll just link the wiki page on the subject for now. I'll probably revisit this later, once I've replayed through it and believe I can explain it properly.

https://masseffect.fandom.com/wiki/Samara:_The_Ardat-Yakshi

Fade Away (Missable)

ME2: Gain the loyalty of Archangel

This refers to Garrus ("Garrus: Eye for an Eye").

Ghost of the Father (Missable)

ME2: Gain the loyalty of the Cerberus Operative

The refers to Jacob ("Jacob: The Gift of Greatness").

Revenge! (Missable)

ME2: Gain the loyalty of the mercenary

This refers to Zaeed ("Zaeed: The Price of Revenge"). Another mission with failure as an option. In order to get Zaeed's loyalty you will have to follow the Renegade path when comes time to decide on saving the workers or not. If you do decide to go Paragon and save the workers, you will have one last chance to gain his loyalty at the end of the mission but it will require a high-level Charm decision, only available if your Paragon is high enough. Remember to save beforehand if you want to attempt the latter.

The Cure (Missable)

ME2: Gain the loyalty of the Professor

This refers to Mordin ("Mordin: Old Blood").

The Prodigal (Missable)

ME2: Gain the loyalty of the Cerberus Officer

This refers to Miranda ("Miranda: The Prodigal").

Treason (Missable)

ME2: Gain the loyalty of the quarian

This refers to Tali ("Tali: Treason"). You will fail to acquire Tali's loyalty if you provide the evidence that her father was guilty during the trial. Respect her wishes and you'll be fine.

└ Combat

"Boom, Headshot! Boom, Headshot! BOOM, HEADSHOT!"

Head Hunter

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

You should get this naturally by playing the game, just aim for the head. Humanoid refers to anything that looks like a human, including robots as long as they walk on two legs.

"It Buuuuuurns"

Disabling "Squad Power Usage" in the options is recommended for these.

Merciless

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

Equip Incendiary ammo as soon as you acquire it and you'll get this in no time.

Incineration Specialist

ME2: Incinerate the armor of 25 enemies

You or a squadmate need to have the Incinerate ability. Once you encounter armored enemies, you should try to shoot them a bit to lower their armor, especially on "Insanity" before using Incinerate. When in to comes to your squad members, you need to order them to use the skill, automatic usage will not count.

Tactician

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

Although not necessary, this will be easier if you chose a Class with biotic talents. Regardless, the simplest way to get this is to use or order one of your squadmates to Lift or Pull an enemy and then use or order somebody else to hit it with any other biotic power such as Warp, Pull or Throw. Characters with access to biotic talents are Miranda, Jacob, Thane and Jack.

Overload Specialist

ME2: Disrupt the shields of 25 enemies

The Overload ability is required for this. Once again, you can either use it yourself or order one of your squad members to do it for you. Miranda, Kasumi and Garrus all have access to it.

Overload Specialist

ME2: Warp the barriers of 25 enemies

A Barrier is indicated by a purple health bar as opposed to blue for shields. Just like the Incinerate Shields achievement, you'll probably want to shoot them up a bit before as the barrier needs to be completely removed by the ability. Miranda and Thane are your friends for this achievement if you don't have Warp yourself.

└ Misc.

The Easy Ones

Operative

ME2: Complete a mission discovered by scanning an unexplored world

Agent

ME2: Complete 5 missions discovered by scanning unexplored worlds

While scanning planets for resources, some of them will be marked as anomalies. Scan them to find the right spot and launch a probe. Once that's done, land on the planet and complete the mission. Here's a list of all possible missions based on where they're found.

ClusterSystemPlanet / MoonAssignment / MissionCaleston RiftSolveigSinmara (Surtur's moon)N7: Endangered Research StationCaleston RiftTalavaTaitusN7: Mining the CanyonCaleston RiftYakawaKarumtoProject Firewalker: Volcano StationCrescent NebulaLusarnTarithN7: Blood Pack Communications RelayCrescent NebulaZeleneHelymeN7: Captured Mining FacilityEagle NebulaAmunNeithN7: Wrecked Merchant FreighterHades NexusHoplosKopis (Makhaira's moon)Project Firewalker: Prothean SiteHades NexusSheolGei HinnomN7: Quarian Crash SiteHawking EtaVerrCorangProject Firewalker: Survey Sites LocatedHourglass NebulaFaryarDaratarN7: Eclipse Smuggling DepotHourglass NebulaPloitariZanethuN7: MSV EstevanicoIsmar FrontierElystaZeonaProject Firewalker: Rosalie LostMinos WastelandFortisAequitasN7: Abandoned MineOmega NebulaAmadaAlcheraNormandy Crash SiteOmega NebulaFatharLorekN7: Lost OperativePylos NebulaDiradaCanalusN7: Anomalous Weather DetectedRosetta NebulaAlpha Draconis2175 AeiaJacob: The Gift of GreatnessRosetta NebulaEnochJoabN7: Archeological Dig SiteSigurd's CradleDecorisSanctumN7: Blue Suns BaseSigurd's CradleSkepsisFranklin (Watson's moon)N7: Javelin Missiles LaunchedThe Phoenix MassingChomosLatteshProject Firewalker: Geth IncursionThe Shrike AbyssalXe ChaZada BanN7: Blood Pack BaseTitan NebulaHaskinsCapekN7: Hahne-Kedar Facility

Galactic Explorer

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

When in a specific cluster, a percentage will be displayed in the top left. Simply keep scanning until it shows 100% and then make sure to "visit" (click on) every planet.

Scholar

ME2: Unlock 15 new Mass Effect 2 codex entries

This will come naturally as you play through the game. Make sure to talk to everybody, as usual.

Scientist

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

What is says on the tin. Go to the tech lab on the Normandy, choose an upgrade and research it.

Power Full

ME2: Evolve any power

In order to evolve a power, you'll first need to level up one of them to the maximum which requires ten skill points. Once done, a message will pop up asking you to make a choice.

Weapon Specialist (Missable)

ME2: Fully upgrade a weapon

You will find various weapon upgrades across many missions and in stores. Many of them are easily missable so make sure to look everywhere and try to focus on a single weapon to acquire this achievement as early as possible.

For the complete list of upgrades, the wiki is your best friend. This will allow you to focus on a single weapon and not have to waste time looting all of them if you don't wish to.

https://masseffect.fandom.com/wiki/Upgrade_Guide

Can't Spell EA without DLC

Digital Exorcist

ME2: Successfully shut down the rogue VI in Project Overlord

This will unlock at the end of the "Overlord" DLC mission, after the boss fight, and cannot be missed. To start it, look for "Investigate Project Overlord" on the galaxy map.

Heart of Darkness

ME2: Confront the Shadow Broker

This achievement is part of the Lair of the Shadow Broker DLC. This time around though, it will unlock right before the final boss fight starts. You'll receive a message on your terminal once the DLC storyline can be started.

Mass Effect 3

A point about Missions: you should focus on completing side missions as soon as they are available and before the main ones (usually marked as Priority:). This is because some side missions can basically fail and become impossible to do if you go too far in the main storyline, thus preventing from unlocking the associated achievements. I'll go over them in more details in the Story section but early warnings can't hurt.

Master and Commander

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

You'll need your Effective Military Strength at 4,000 before you start the invasion of the Cerberus HQ.

I'll probably go into more details later but the gist of it is, you'll be fine if you've done the vast majority of missions available in all three games up to this point. I'm getting old, I feel like I'm repeating myself a lot.

└ Story

These achievements are story related and can't be missed. However, some side missions CAN be missed if they are not completed before some of the "Priority:" ones, I'll cover them individually.

Driven

ME3: Return to active duty

Bringer of War

ME3: Chase down an assassin

Mobilizer

ME3: Bring a veteran officer aboard

Pathfinder

ME3: Explore a lost city

Unlocked by completing the mission "Priority: Tuchanka".

Warning: You must complete the sidequest "Attican Traverse: Krogan Team" BEFORE the Mission "Priority: Tuchanka" to not get locked out of the achievement "Tunnel Rat".

ME3: Survive the swarm Unlocked by completing the mission "Attican Traverse: Krogan Team".

Arbier

ME3: Win a political stand-off

Unlocked by completing the mission "Priority: Citadel II".

Warning: You must complete the sidequest "Grissom Academy: Emergency Evacuation"' BEFORE the Mission "Priority: Citadel II" to not get locked out of the achievement "Liberator".

ME3: Stop a Cerberus kidnapping Unlocked by completing the mission "Grissom Academy: Emergency Evacuation".

Problem Solver (Missable)

ME3: Evacuate a scientific facility

Unlocked by completing the mission "Arrae: Ex-Cerberus Scientists".

Although not a Story mission per say, I'll throw this one in here anyway because you unlock it right after "Priority: Citadel II" and because you could in theory miss this achievement if you ignore the mission altogether. They will reward you with War Assets too ("Master and Commander").

Party Crasher

ME3: Sabotage a dreadnought

Unlocked by completing the mission "Priority: Geth Dreadnought".

Hard Target

ME3: Call down an orbital strike

Unlocked by completing the mission "Priority: Rannoch".

Warning: You must complete the sidequest "Rannoch: Geth Fighter Squadrons"' BEFORE the Mission "Priority: Rannoch" to not get locked out of the achievement "Saboteur".

ME3: Disable a group of fighter squadrons Unlocked by completing the mission "Rannoch: Geth Fighter Squadrons".

Last Witness

ME3: Extract ancient technology

Unlocked by completing the mission "Priority: Thessia".

Warning: You must complete the sidequest "Kallini: Ardat-Yakshi Monastery"' BEFORE the Mission "Priority: Thessia" to not get locked out of the achievement "Fact Finder".

ME3: Discover an enemy's monstrous origin Unlocked by completing the mission "Kallini: Ardat-Yakshi Monastery".

Well Connected

ME3: Send a warning across the galaxy

Unlocked by completing the mission "Priority: Horizon".

Point of no Return

Remember to complete everything you want before this point as you won't be able to after starting this next Mission.

Executioner

ME3: Defeat an old adversary

Unlocked by completing the mission "Priority: Cerberus Headquarters".

Patriot

ME3: Make the final assault

Unlocked by completing the mission "Priority: Earth".

Legend

ME3: Mission accomplished

You've finished the game, congratulations.

└ Combat

Pretty Straightforward

Eye of the Hurricane

ME3: Kill a brute while it's charging you

Pretty straightforward. You'll get many opportunities to achieve this during the course of the game. Lower its health and wait for it to charge to make it easier.

Giant Killer

ME3: Defeat a harvester

Pretty straightforward. You'll get many opportunities to achieve this during the course of the game and is effectively unmissable.

World Shaker

ME3: Destroy an Atlas dropped from orbit

Pretty straightforward. You'll get many opportunities to achieve this during the course of the game and is effectively unmissable.

Hijacker

ME3: Hijack an Atlas mech

Not so straightforward. Same enemy as above. This time though, you'll want to focus your firepower on the orange glass part to break it and then kill the pilot. A sniper rifle is recommended but not mandatory. If the mech hasn't been destroyed, you'll be able to approach it and take control of it.

You're a Killer Harry!

Just like in previous games, your uses and those of your squadmates will count as long as you order them so make sure to use the required powers every opportunity you get.

Pyromaniac

ME3: Set 100 enemies on fire with powers

Inferno ammo, Incinerate, Inferno grenades and everything else that can set enemies on fire will work.

Sky High

ME3: Lift 100 enemies off the ground with powers

Lift, Throw, Pull, Concussion Shot and everything else that can send your enemies flying will work.

Shield Breaker

ME3: Overload the shields of 100 enemies

Same as in the previous two games. Simply use the Overload talent on an enemy with a shield if you choose the Engineer and Sentinel classes or bring EDI, Garrus or Kaidan in missions with you and order them to do it for you.

Combined Arms

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

Same advice as "Tactician" from Mass Effect 2 except now you can use tech skills as well as biotic ones to combo.

Mail Slot

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

Guardians are the enemies hiding behind a shield as big as them. You'll need to kill ten of them by shooting in the tiny hole they look through. Using a sniper is advised.

└ Misc.

The Easy Ones Part II

Untouchable

ME3: Escape a Reaper in the galaxy map

You should get this by yourself early on but just in case, in occupied systems, indicated by a Reaper on top, scanning will alert them of your presence represented by a progress bar in the bottom-left corner. Keep scanning until they attack you. You'll unlock this once you escape the system by going through the mass relay or fly past the border.

Lost and Found

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

Same as above. Go into Reaper territory and scan planets until you find something interesting and send a probe. Be mindful not to scan too much and alert the Reapers.

Shopaholic

ME3: Visit a store on the Citadel

I'm Commander Shepard and this is my favorite store on the Citadel.

Always Prepared

ME3: Obtain two non-customizable suits of armor

In various shops across the game, you'll find full body sets of armor (as opposed to armor for specific body parts) selling for 50,000 Credits or on the Normandy for 55,000. Buy two of them and this will pop.

Focused

ME3: Evolve any of your powers to rank 6

You should get this naturally honestly, just focus on a single power and you'll be fine.

A Personal Touch

ME3: Modify a weapon

Equip any mod on any weapon. Ding!

Gunsmith

ME3: Upgrade any weapon to level 10

Now this one is a bit of a weird one as in its current state would require to start a second playthrough like in the original game. Indeed, during you first playthrough, you would be limited to level 5 and you'd need to start a New Game+ save to unlock level 10.

The reason why it's weird is because every single achievement in the original trilogy which required two or more playthroughs has either been modified to be achievable in one or simply removed. Except this one it seems. If anybody has reached Mass Effect 3 already, I'd appreciate if you could confirm or not that anything has changed.

DLC Bundle Costs 29.99€ on Origin

Under Pressure

ME3: Uncover an ancient secret

This achievement is the final story-related one from the Leviathan DLC and can't be missed as long as you play through it. (Mission "Citadel: Dr. Bryson", available after you receive a message on your terminal titled "Urgent message from Admiral Hackett").

Savior

ME3: Free Omega from Cerberus Occupation

This achievement is the final story-related one from the Omega DLC and can't be missed as long as you play through it. (Mission "Citadel: Aria T'Loak", available after you receive a message on your terminal from Aria T'Loak titled "Omega: It's time").

Last Resort

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

This achievement is the final story-related one from the Citadel DLC and can't be missed as long as you play through it. (Mission "Citadel: Shore Leave", available after you receive a message on your terminal from Admiral Hackett titled "Priority: Citadel Shore Leave").

The One and Only

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

First, you'll need to purchase the "Mirror Match" at the Armax Store. Then, go into the combat area and choose said "Mirror Match". Good luck, I don't really have any advice yet (never actually done it), just try not to die.

Closing Remarks

Thank you to everybody who may have contributed to the Mass Effect wiki which has been invaluable in writing this guide.

https://masseffect.fandom.com/wiki/Mass_Effect_Wiki

Wallpaper/Icons come from the official fan art kit provided by Bioware.

Screenshots are my own.

If I forgot anything or made any mistakes, or if anything isn't clear, please let me know in the comments.

If you found this guide useful, consider rating it and putting it in your favorites. This will allow you to quickly access it in-game from the Steam overlay.

And finally, thank you for reading!

Source: https://steamcommunity.com/sharedfiles/filedetails/?id=2486912599					

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