Mass Effect 3: Leviathan DLC Walkthrough

Table of Contents

Bryson’s Lab

  1. To begin Mass Effect 3′s Leviathan DLC head to the Citadel. When you dock with it, you’ll get an option to dock directly onto Bryson’s Lab. When Shepard touches down he’ll meet Dr. Bryson and his assistant, Derek Hadley. You’ll find out that Dr. Bryson’s mandate is to investigate legends, myths and rumors about the Reapers, before the population even knew they existed.
  2. As the conversation between Shepard and Dr. Bryson continues, you can ask questions to get to know more about their investigation through the dialogue wheel.
  3. After a bit more talk, Dr. Bryson’s assistant will walk into the room, albeit in a less relaxed matter. Something is wrong. He’ll shoot Dr. Bryson. During this sequence you can trigger a paragon response to disarm Hadley. Hadley will then speak as if not himself.
  4. The next scene begins with Shepard, Hadley, EDI and two guards talking about the situation. Shepard will go through some dialogue with Hadley who seems to have come to. During the conversation, Shepard can initiate a renegade response. Soon enough, Shepard hears word of a creature named “Leviathan” as the camera pans toward a spherically liquid artifact.
  5. Hadley will soon pass out and EDI finds a recording of Dr. Bryson and Admiral Hackett talking about Leviathan.
  6. From here Shepard will need to find clues to get more information on Leviathan. When the cut-scene ends EDI suggests to find a research log from a field researcher. The audio log will be directly in front Shepard. Access it and your next lead will be Garneau.
  7. Shepard will need to find out where Garneau is located based on the clues in Bryson’s Lab. There are technically 3 areas to explore here. The room with the galaxy map, the lab proper and the courtyard outside. To get it out of the way first, head to the courtyard and look for a pile of crates. Grab the “Pistol Cranial Trauma System I” weapon upgrade.
  8. Now enter the room adjacent to the galaxy map room, the lab proper. To be thorough, we’ll access any objects that are accessible.
  9. In the lab proper, first access the Sovereign Fragment. Next to the fragment is a monitor with a video log and some encrypted data to the right of it. You’ll get into the encrypted data in a bit.
  10. Now turn around and head to the lab area with the Plesiosaur skeleton hanging above. Underneath the skeleton is another monitor. You can access the console, a video log and a picture below it.
  11. Head deeper into the lab to access a PDA on the island counter. On the L-shaped counter along the wall, there’s a switch. Flip it to see images appear on the wall. They were notes Bryson was taking. Access the notes. This will add a filter to the galaxy map giving the map parameters to narrow down Garneau’s location.
  12. To the left of the notes that appeared on the wall, are some rocks. Examine the rocks, then use the scope. Another filter. As you check the area, look for the low shelf that contains a “SMG Mass Pulse Recoil System I”.
  13. Now head up the stairs into Bryson’s bedroom. Next to the chair is a stand with a picture placed on top. Examine it to grab the code for the encrypted piece of data under the monitor next to the Sovereign fragment.
  14. After accessing the encrypted data, another filter will be available. Now head back to the galaxy map room. Look for the corner of the room with two monitors hanging on the wall. Access the consoles for each to get another filter.
  15. Move to the galaxy map and you’ll see 4 filters. The one on the bottom right is for creature sightings, top right is blackout crimes, top left is locations with element zero, and bottom left is reaper activities.
  16. To find Garneau’s location, activate all the filters except for the blackout crimes. You’ll find his location.
  17. Now head back to the courtyard and get into the shuttle, to get to the Normandy.
  18. When you’re on the Normandy, access your galaxy map, then look for “Caleston Rift”. It’s on the right side of the galaxy. When you enter the rift, immediately leave the system, and head right toward Aysur. Scan south of the sun to find Mahavid located in the asteroid belt.

Return to the Main Walkthrough Page

Join the Conversation   

* required field

By submitting a comment here you grant GameFront a perpetual license to reproduce your words and name/web site in attribution. Inappropriate or irrelevant comments will be removed at an admin's discretion.

7 Comments on Mass Effect 3: Leviathan DLC Walkthrough


On August 28, 2012 at 10:31 am

There should be an article that says is this worth buying because mass effect 3 sure wan’t.


On August 28, 2012 at 10:38 am


Keep watching the front page, we’ll have a review up soon!


On August 28, 2012 at 7:17 pm

Hum lee, despite the flaws of the endings of Mass Effect 3 the game itself is still worth buying and for me the Leviathan DLC is a good addition to ME3 if your still a fan of the franchise.

Myself i have two copies of Mass Effect 3 one on Xbox360 and the other on PS3. It not because i’m a tool to Bioware but i’m still a big fan of the Mass Effect series and also because i bought the two games at the same time before playing it.

Jim Henman

On August 29, 2012 at 5:59 am

Wesker1984 – no, you are a tool for BioWare. You’ve made that abundantly clear with your repeated ad hominem attacks on other users who disliked aspects of the game or its ending, going so far as to say that Gamefront’s article on the reasons why fans hated the ending was “Gamefront’s own unique interpretation” as opposed to the collective anger of tens of thousands of gamers, and while commenting on stories that you claim that you don’t care about. You are literally the last person on here (apart from maybe Lilith or Hunter) that can give an objective analysis of the DLC.

Frankly, given how much EA has gone out of its way to spit on the foundations of the series in order to appeal to the casual market, and BioWare’s spineless acceptance of this fate as well as their outright lying over the nature of the product they were selling, coupled with the months-long systematic slander of anyone with a critical eye from those in the mainstream media whose very job it is to scrutinise these things, I don’t know why anyone would ever want to spend so much as another second on any of this dross. Even the original Mass Effect is difficult to enjoy any more, knowing how badly it was ripped apart. Still, as long as it sells copies to the testosterone junkies and pretentious bellends who think that manipulative musical cues and fiat drama is a good substitute for an actual plot and development, it looks like we can ‘enjoy’ more of the same. Whoop de do.

Leviathan is what it is. A DLC pack for a flawed game. It’s fun to play but it’s not going to challenge you, either with its difficulty or its narrative. Whether or not you think it’s worth playing depends on whether you want to go back to a universe that has been irreversibly tarnished, and whether you want to forgive BioWare for all the crap they’ve pulled over the course of this year. Even if you can forgive BioWare for being spineless hypocrites, do you really want to put more money into EA’s pockets? If none of that bothers you then go ahead, I played it at a friend’s house and it’s a decent enough pack on a purely individual basis.


On August 31, 2012 at 8:33 pm

Are you blind Jim? I clearly said ”For ME it worth buying”. And even if i’m a tool for both Bioware or Capcom what it change in your life? This is my problem not yours. I take whatever those two compagnies who have developed my two favorite franchise will throw at me. It because i’m a renegade blinded hardcore fan.

And for your information i never said it was ”gamefront unique interpretation” and i was part of the collective anger of tens of thousands of gamers before the release of the Extended Cuts. I even participed on the Retake Mass Effect 3 movement and i know exactly the angry fans are the majority. But after the release of the Extended Cuts i realised i liked so much Mass Effect 3 as a game and my only problem was the flawed endings who is now potable and not so bad with the nice extended cuts added.

Its clear you dont know me and your making judgement on me just by readings my incoherent babling comments.


On September 20, 2012 at 9:40 am

Do you really need to number every individual event, including cutscenes? I came here because I don’t want to watch an entire video guide on how to do it, I want to be able to see which filter I’m missing. This is just as much as an information overload, though, in a mass of text. Also, the info is wrong. Prothean Artifacts doesn’t seem to be a valid filter in my game. Maybe it’s different from game to game but it feels like you should check this first.


On January 30, 2013 at 7:01 pm

If you keep talking to to James on the Last Stop at Bryson’s Lab eventually you will be able to interact with the husk head. You will then have the option of taking it back to the Normandy.