Mass Effect 2

Mass Effect 2 Wiki Guide


This page of IGN's Mass Effect 2 wiki guide is the main walkthrough of the game's core storyline Missions. It will help assist you in getting through all combat encounters, where to find every collectible, and how to pick the right dialogue choices for your playthrough. This walkthrough is available in both a text-and-pictures format as well as video demonstration .

The listings below focus on efficiency. For example, Illium can have up to three Missions available for it at the same time, so they are all grouped together. DLC is not listed here as it is all ultimately optional. Any Side Quests are handled in the Side Quests section.

Assemble a Team: Part 1

Assemble a team: part 2, loyalty missions.

Save Joker slice2.png

A month after the defeat of Sovereign in Mass Effect 1, Shepard and the crew of the Normandy scour the galaxy for the last remaining Geth holdouts. But life is about to take a sharp turn for Shepard, as they meet Cerburus and learn of agents of the Reapers who are terrorizing humanity before they even arrive...

Mordin Profile.png

In order to take down The Collectors, Shepard must go through the Omega-4 Relay to strike the Collectors at their base, effectively a suicide mission. In order to have a chance at being successful, the Illusive Man instructs Shepard to travel the galaxy and assemble an elite team to get the job done.

Tali Profile.png

After a reunion in the colony of Horizon , the Illusive Man forwards Shepard three more dossiers to complete Shepard's team of ever-talented specialists to prepare for taking on the Collectors.

Eye for an Eye slice1.png

In addition to assembling their team, Shepard must also tend to the personal and mental needs of the crew; old ghosts emerge from their past, and Shepard needs their team at their best to have a chance at defeating the Collectors.

Tartarus Debris Field slice6.png

With the team assembled, Shepard boards an incredibly dangerous craft to recover a device that could help them pass through the Omega-4 Relay. But a tragic turn of events causes the situation to become even more dire, and Shepard must finally make the jump to the Collector's base of operations...

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Mass Effect 2


Mass Effect 2: All Main Missions List

mass effect 2 all main missions

Home » Guides » Mass Effect 2: All Main Missions List

Mass Effect 2 contains many side missions that you wouldn’t want to skip, but what if you wanted the quickest route to the end of the game? We’ve got you covered, whether you’re a newcomer or a returning longtime fan. Here’s a list of all of the main missions in Mass Effect 2 .

Spoiler Warning : Please keep in mind that the names of some of the main missions can hint at some of the story beats in Mass Effect 2

All Main Missions in Mass Effect 2

Mass Effect 2 allows players to complete many of its missions in whatever order they see fit, much like in Mass Effect 1. The following list of missions takes this into account by listing them in the general order that they appear in the story. The game is split up into three acts and several sections. Each section contains a number of individual missions to complete. That includes the highly recommended loyalty missions, even though they’re technically optional.

And that’s the list of every single main mission in Mass Effect 2 . If you’re looking for more tips, tricks, or other general info, check out our guide wiki for Mass Effect Legendary Edition . You can also have a look at our other Mass Effect coverage in the related articles below.

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Mass Effect Wiki

Mass Effect 2 Guide

This page contains a walkthrough for the main missions of Mass Effect 2 . Major changes in the gameplay from Mass Effect are listed in the main Mass Effect 2 page , while the effects of importing a saved game from Mass Effect are listed in the Save File Transfer page. For a comprehensive introduction to the mechanics of the actual fighting the player must engage in on most missions, see the combat page .

Legendary Edition: If you are playing Mass Effect Legendary Edition , all content that was previously available only from Downloadable Content (DLC) is now included by default, but overall requirements and prerequisites for the missions and characters only available from DLC in the original game remain largely the same. Legendary Edition does feature many changes to the original Mass Effect 2, including changes to how certain equipment is obtained.

Prologue [ ]

Prologue missions take place at the beginning of the game, in mandatory progression. At the end of the prologue Shepard receives command of the Normandy SR-2 and is free to explore both the ship and the galaxy.

Prologue: Save Joker - Story and setting

Prologue: Awakening - Create your Shepard, Tutorial

Freedom's Progress - First mission with Miranda and Jacob

Stop the Collectors - Master mission for the rest of the game

Act 1 begins when Shepard receives the Stop the Collectors master mission along with command of the Normandy SR-2 and continues until the mission to Horizon , which is activated as soon as Shepard has recruited all four of Mordin , Garrus , Jack , and Grunt . Any other missions and assignments not completed during Act 1 can still be completed during Act 2. Note that the order in which squadmates are recruited during Act 1 is entirely up to Shepard and will not affect how events play out in any way.

You will also have the opportunity to perform various assignments —some are available on Omega , some on the Citadel , and others you can discover during the process of Planet Scanning . Assignments described as N7 Assignments usually involve squad deployments and combat—effectively small missions—and provide experience, credits, and other rewards. All assignments are optional, but they help advance the story and provide the opportunity for additional rewards and items.

Act 1 Dossiers [ ]

Perform dossier missions to recruit new squad members for your team. It is recommended that you recruit Mordin first so that you will be able to take advantage of upgrades in the Research Lab on the Normandy. When these four missions have all been completed, the Horizon mission will trigger and Act 2 will begin.

Dossier: The Professor - Mordin

Dossier: Archangel - Garrus

Dossier: The Convict - Jack

Dossier: The Warlord - Grunt

Act 1 DLC [ ]

The following DLC missions and assignments can be performed during Act 1, or saved until Act 2 if desired.

Dossier: The Veteran - Zaeed

Dossier: The Master Thief - Kasumi

Zaeed: The Price of Revenge - Loyalty

Kasumi: Stealing Memory - Loyalty

Firewalker Pack

Normandy Crash Site

Act 1 Progression [ ]

When all four of the original (non-DLC) dossier missions are complete, the Horizon mission will be activated and Act 2 will begin.

Act 2 begins upon successful completion of the Horizon mission. At this point the Normandy is able to travel to Illium and new dossiers and missions become available. New assignments also become available during the course of Act 2: some at Illium, some on Tuchanka , and many new N7 Assignments open up through Planet Scanning in new systems which open up for exploration. New merchants also become available, along with new items at some of the Act 1 merchants; see the Merchants Guide for a complete list of locations and wares.

Act 2 Dossiers [ ]

Four more squadmates can now be recruited, though Legion 's mission works differently in that it does not become available until after the Collector Ship mission, and triggers additional act progression. You will need at least eight total crew members, not counting Legion, to advance the plot.

Dossier: The Assassin - Thane

Dossier: The Justicar - Samara

Dossier: Tali - Tali

Reaper IFF - Legion

Act 2 Loyalty Missions [ ]

Starting in Act 2, speaking with squad members on the Normandy will elicit requests for you to perform Loyalty missions. Securing the loyalty of your squad will both unlock new powers for them and increase the likelihood that they, and indeed Shepard, will survive Act 3. All loyalty missions are optional—they increase the power of your team but are not required to be completed for the game to progress.

Miranda's and Jacob's missions can be obtained immediately when Act 2 begins. Additional missions become available one at a time in the order listed; if the character whose loyalty mission would normally unlock is not yet present (e.g. Grunt is still in his tank, or Thane has not been recruited) then the mission of the next character present will unlock instead. Speaking with Kelly Chambers between missions will let you know which squad members you can talk to for new loyalty missions.

Gaining the loyalty of a squad member unlocks their "Bonus Power" for them to use. The first time a Bonus Power is ever unlocked, it is also added to the Advanced Training list for Shepard.

Each squad mate also has one Normandy Upgrade or research project to unlock in the research lab. Once Shepard has access to the research lab, these can be unlocked, even during Act 1, by talking to the squad members before they offer their loyalty missions and selecting the "[NORMANDY UPGRADES]" option under the Investigate heading; otherwise it unlocks automatically as each loyalty mission is complete.

Miranda: The Prodigal

Jacob: The Gift of Greatness

Jack: Subject Zero

Mordin: Old Blood

Grunt: Rite of Passage

Garrus: Eye for an Eye

Samara: The Ardat-Yakshi

Tali: Treason

Thane: Sins of the Father

Legion: A House Divided

Act 2 DLC [ ]

The following DLC becomes available for the first time when Act 2 begins. These are both large, substantial, and challenging undertakings, and offer significant rewards.

Lair of the Shadow Broker

Act 2 Progression Missions [ ]

Several key progression missions take place during the course of Act 2. Only the Reaper IFF mission may be done whenever you're ready; the other two trigger automatically.

Collector Ship - triggered a few missions after the events on Horizon. See the acquisition section on the mission page for specifics.

Reaper IFF - choose anytime after the Collector Ship mission. However , once completed, a mission countdown activates, with the possibility of significant plot consequences if the player delays much before proceeding through the Omega 4 Relay and beginning Act 3.

Await IFF Installation - triggers aboard the Normandy immediately after obtaining the IFF from the Derelict Reaper .

Act 3, also known as the Suicide Mission , begins when the Normandy enters the Omega 4 Relay , which can be done freely any time after Await IFF Installation is complete. At this point the mission sequence is locked, and the game proceeds through to the Epilogue without any intervening break for Shepard to use the Galaxy Map , complete assignments, research upgrades, etc. If Shepard survives the Suicide Mission, however, additional missions and assignments (DLC or left over from Acts 1 and 2) can then be completed.

Before entering the Omega 4 Relay and thus launching Act 3, you will want to upgrade your ship. The important upgrades are the shields, the armor, and the cannon. Tali, Jacob, and Garrus, respectively, provide these upgrades. For each of these you do not upgrade, you will later lose one team member. Upgrades will also increase the Normandy's value as a War Asset in Mass Effect 3 .

The following list shows, in order of preference, which crew member will die if you haven't upgraded a particular part:

Note: This tier is sorted by the characters' order of dying in descending order. Squad members on the "Multicore Shielding" list will not die if they are in your party when you fight the Oculus . Bringing Jack to fight the Oculus will not protect her if you do not have Heavy Ship Armor, nor will bringing anyone on the "Thanix Cannon" list save them from their fate.

Act 3 Progression [ ]

The Normandy Attacked - Defend the Normandy from the Oculus.

Collector Base: Infiltration - Help your tech specialist through the ventilation shaft.

Collector Base: The Long Walk - Your biotic specialist escorts you through the Seeker Swarms.

Collector Base: Final Battle - Face the truth behind the abductions and make your decisions.

mass effect 2 how many missions

mass effect 2 how many missions

Home » Games » Action » Mass Effect 2

How many chapters in Mass effect 2 ?

Mass Effect 2

Game plot - mass effect 2.

Are you prepared to lose everything to save the galaxy? You’ll need to be, Commander Shephard. It’s time to bring together your greatest allies and recruit the galaxy’s fighting elite to continue the resistance against the invading Reapers. So steel yourself, because this is an astronomical mission where sacrifices must be made. You’ll face tougher choices and new, deadlier enemies. Arm yourself and prepare for an unforgettable intergalactic adventure.

Game Features:

Shift the fight in your favour. Equip yourself with powerful new weapons almost instantly thanks to a new inventory system. Plus, an improved health regeneration system means you’ll spend less time hunting for restorative items.

Make every decision matter. Divisive crew members are just the tip of the iceberg, Commander, because you’ll also be tasked with issues of intergalactic diplomacy. And time’s a wastin’ so don’t be afraid to use new prompt-based actions that let you interrupt conversations, even if they could alter the fate of your crew…and the galaxy.

Forge new alliances, carefully. You’ll fight alongside some of your most trustworthy crew members, but you’ll also get the opportunity to recruit new talent. Just choose your new partners with care because the fate of the galaxy rests on your shoulders, Commander.

How many chapters in Mass Effect 2?

List of chapters in mass effect 2.

(Main missions only.)

How many side missions in mass effect 2, list of side missions in mass effect 2.

Crime in Progress Found Forged ID Krogan Sushi The Assassin: Salarian Family Data Blue Rose of Illium Indentured Service The Justicar: Smuggling Evidence The Justicar: Stolen Goods Found Liara: System Hacking Medical Scans The Prodigal: Lost Locket Found Abandoned Mine Abandoned Research Station Anomalous Weather Detected Archaeological Dig Site Blood Pack Base Blood Pack Communications Relay Blue Suns Base Captured Mining Facility Eclipse Smuggling Depot Endangered Research Station Hahne-Kedar Facility Imminent Ship Crash Javelin Missiles Launched Lost Operative Mining the Canyone MSV Estevanico MSV Strontium Mule Quarian Crash Site Wrecked Merchant Freighter FBA Couplings Serrice Ice Brandy Special Ingredients Archangel: Datapad Recovered Batarian Bartender Packages for Ish Struggling Quarian Patriarch The Professor: Missing Assistant Combustion Manifold Killing Pyjaks Old Blood: Missing Scout

How long to beat Mass Effect 2?

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Mass Effect 2 Mission Order: optimal DLC, dossier, loyalty quest sequence

Just like its predecessor, Mass Effect 2 has an open-ended story that lets you tackle its various objectives in a relatively open-ended manner - and that means some people are inevitably going to be struck wondering what the best mission order for ME2 might look like. 

Just like our suggestions on the ME1 mission order , any list you’ll find from us or anyone else online is merely a suggestion - but there are definitely certain missions that work better than others in certain places within ME2’s story. On top of that, there’s also more DLC missions in this game than its predecessor, and slotting those into the story is… quite difficult, honestly.

On this page, we proffer our suggestion for the optimum sequence of story missions and events in Mass Effect 2. Simple!


Mass Effect 2 Mission Order: optimal order for recruitment, loyalty & DLC missions

The basic structure of Mass Effect 2 is pretty simple. It starts you off with a string of prologue missions where it’ll ferry you from event to event, including two story mission planets that have combat encounters and even an early mini boss battle of sorts. After that, you’ll get your ship - and this is where the game opens up.

From here on out, ME2 is broken into segments. You get your ship and a smattering of story ‘recruitment’ missions to build your team. After recruiting all the available team members, you will automatically go to the story planet of Horizon for a mandatory story interlude. After that, you’ll get more missions. After finishing five of those, you’ll have another mandatory story mission. From there, you can complete whatever you like to the end.

No missions are mandatory, but towards the end of the game taking on too many side missions & optional assignments after a time-sensitive story event can have a negative impact on the end of the game. This guide avoids that, but check out our Mass Effect 2 Suicide Mission & endings guide for more detailed information on how to avoid that. 

Below is our suggested mission order. While we've built in a few breaks where we suggest you tackle side missions and scan planets for resources, we also recommend you do this as often as you like throughout the game to break things up. The only exception is once you get the Reaper IFF - before doing that, you should complete absolutely everything you need to.

Remember that the mission order presented on this page is just a suggestion; deviate from it as much as you like.

Act 1 Mission Order: Cerberus and Building a Team

Act 2 Mission Order: Old Friends & Loyalties

Act 3 Mission Order: Loyalties Secured 

ME2 Ending & Postgame

Something New

Mass effect 2: optimal mission order.

In BioWare's Mass Effect 2, Shepard has the freedom to tackle most missions in any order. What is the best order to follow?

For the most part, Mass Effect 2 is a linear RPG. However, the game does give you some freedom when it comes to mission order. Each act of the adventure has an abundance of quests to take on, and it doesn't matter which you do first or which you save for later.

RELATED: 10 Things We Wish We Knew Before Starting Mass Effect Legendary Edition

Yet, playing each mission in a specific order can improve a playthrough in various ways. For instance, if you complete quests in the optimal sequence, you lower the risk of losing characters by the end of the game. Plus, your narrative experience can be enhanced simply by doing certain missions at certain times. So, here is the order in which you should complete all of the main content.

Prologue: Joining Cerberus

During Mass Effect 2's prologue, you have no control over which missions you play . The sequence of events includes an attack on the Normandy, Shepard joining Cerberus, and a visit to Freedom's Progress.

The lack of freedom in the opening stages makes sense as the game slowly introduces you to its mechanics and sets up the story.

Mission Order:

ACT 1: Putting Together Your Team

Things start to open up once the prologue ends as the Illusive Man gives you multiple recruitment missions to do at your leisure . You also have a few other quests to keep you busy.

RELATED: Mass Effect 2: Every Squad Recruitment Mission, Ranked

Optimal Mission Order:

ACT 2 – Part 1: Finishing Recruitment

After the Horizon quest, the Illusive Man points you toward three more people you should recruit. Plus, this is when loyalty missions start appearing, so make sure you're regularly talking to your teammates.

For the first part of this act, you can only do five quests before triggering the next Collector assignment.

ACT 2 – Part 2: Gaining Loyalty

You have plenty of freedom in the wake of the Collector Ship investigation as the game doesn't force you to start the next mission. In fact, you want to avoid initiating the Reaper IFF quest for quite some time .

RELATED: Mass Effect 2: Every Loyalty Mission, Ranked From Worst To Best

Instead, the second part of act 2 is about getting almost all of the loyalty missions done . And these quests are crucial because they help you keep everyone alive during the Suicide Mission .

Act 3: Endgame

Act 3 serves as the endgame , and it doesn't allow much time for side content. So, make sure that you've done everything before starting these quests .

Next: Mass Effect Legendary Edition Complete Guide And Walkthrough

Mass Effect Legendary Edition mission order guide

The best mission order to get the most out of the remastered Mass Effect Trilogy, here's how to play Mass Effect Legendary Edition

mass effect 2 how many missions

Jen Rothery

Updated: Dec 6, 2022

Looking for the best Mass Effect mission order for your Legendary Edition playthrough? In each game there are several main quests which take place on different planets, and these can be done in any order you like. Eventually, you unlock a clearly signposted final mission which serves as the ‘point of no return’. After this, you’re no longer able to complete other quests, meaning you might be locked out of the best endings if you haven’t been thorough enough in your questing.

Making sure you’ve completed all the quests you need before embarking on the final mission is essential, but when it comes to playing through the main game prior to this point, you can either decide for yourself which planets to visit first, or you can consult the wisdom of seasoned players who have put together recommended mission order lists for each game.

This includes recommendations on which crewmates to take with you on missions where they have unique voice lines, information on small changes that might arise if you fulfil prerequisites before a mission, and even advice to help the games’ narrative ‘flow’ better. We’ve also got tips on when to play Mass Effect DLC missions. Here’s our recommended Mass Effect Legendary Edition mission order list.

Mass Effect 1 mission order

Mass effect 2 mission order, mass effect 3 mission order.

Ashley, Wrex, and Garrus posing in the Normandy in Mass Effect Legendary Edition

The recommended Mass Effect 1 mission order is:

We recommend you head to Therum first to grab Liara. If you leave her recruitment until after Feros and Noveria, she suffers from the length of her imprisonment, and will initially treat you and your squad as hallucinations. Leave Therum until after Virmire, and she will be in a significantly worse condition when you arrive. This also prevents her from becoming a Mass Effect Legendary Edition romance option in the first game, as there isn’t enough time to get friendly with her.

If you want to see her alternate scenes, we recommend leaving her until last on a second playthrough. Poor Liara.

Whether you complete Feros or Noveria first is really up to you, although Noveria is easier, and Feros has a particularly tricky charm/intimidate check. The companions you bring are also up to you, though we recommend bringing Liara and Wrex to Noveria – Wrex has a lot to say, and Liara should be there for plot reasons.

You can complete the Bring Down the Sky Mass Effect 1 DLC as soon as you leave the Citadel for the first time – complete this whenever you feel like it.

The Virmire mission is the point of no return , so make sure you’ve completed as many side missions as possible, particularly Wrex’s Family Armor quest. Many of the side quests are referenced in later games, but if you’re skipping some, make sure to complete the UNC Rogue VI mission. You should also purchase the Elkoss Combine license at some point as this is useful in ME3.

The Illusive Man in Mass Effect

The recommended Mass Effect 2 mission order is as follows. First, we will cover the recruitment missions. Some characters have unique dialogue in these missions, so to hear the most unique content, you should make sure you’re able to take them with you.

Mass Effect 2 recruitment order:

We recommend doing Horizon at any point after getting Garrus, and bringing Miranda.

Miranda, one of the romantic options in Mass Effect

Mass Effect 2 loyalty mission order:

Collector Ship automatically triggers five missions after Horizon. The other missions – Firewalker, Project Overlord, and Normandy Crash Site – can be completed whenever you feel like breaking up the chain of loyalty missions. For plot reasons, Overlord works well later in the game, before Tali’s loyalty mission.

Reaper IFF is the point of no return , after which a timer begins. You have enough time to complete two more missions before incurring major losses, which should be Tali’s loyalty mission, and then Legion’s loyalty mission, so you can experience their full dialogue. After this, hurry over to the suicide mission, if you know what’s good for you.

Note that your choices during Tali and Legion’s loyalty missions contribute to a pivotal conversation check in ME3. Preventing Tali’s exile without incriminating her father helps you pass this check, as does destroying the geth heretics at the end of Legion’s mission. However, you can pass the check having only fulfilled one of these criteria, as long as you defuse the argument that follows the loyalty missions, and  save Admiral Koris during a mission on Rannoch in ME3. Also, bear in mind that in order to even attempt  the aforementioned pivotal check, there are additional criteria you must fulfil in ME3.

Wondering when to play the ME2 DLC? We recommend saving Lair of the Shadow Broker and Arrival until after the final mission. This way, you can unlock all of Legion’s conversations, also allowing you to get the appropriate response from Liara if you romanced her in the first game and someone else in ME2. Feel free to play LotSB earlier, though, if you miss her.

Four Mass Effect squadmates, Javik, James, EDI, and Kaidan

Our recommended Mass Effect 3 mission order is as follows – this guide presumes that all your squadmates survive ME2. You can swap a few of these around depending on how you feel you should prioritise – we’ll signpost the most important missions to complete before moving on. Every companion has unique dialogue in each mission, but we’ll mention the ones that we recommend for plot or utility reasons.

At this point, we recommend you head to the Citadel and talk to everyone, so you don’t miss out – particularly Thane, Liara, Kelly, Miranda, and Jondum Bau.

Complete all Citadel side quests before moving on.

Javik, a Mass Effect companion

You can now start a ME3 romance by talking to your squadmates.

We recommend visiting the Citadel again at this point.

And there you go – time to make a new Shepard with our Mass Effect face codes guide and start the whole thing all over again, maybe this time with some Mass Effect Legendary Edition mods  to change up your game.

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Jen Rothery When Jen isn't dominating in Dota 2 , she’s looking for clues about new Genshin Impact characters, working on her aim in Valorant , or waving her sword around the tavern in MMOs like New World . Formerly our Deputy Guides Editor, she can now be found at IGN.

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