Mass Effect 3: Cerberus Labs - N7 quests walkthrough Mass Effect 3 guide, walkthrough

Last update: 29 October 2022

This Mass Effect 3 game guide page offers a walkthrough for the N7 side quest Cerberus Labs. This guide explains when to find out about the existence of the lab, where to find the 2 artifacts and how to evacuate.

Received from: Specialist Traynor [Normandy SR-2: Combat Information Center]

Unlocked by: You will get a chance to begin this mission after visiting the Citadel for the first time, i.e. after completing Priority: Citadel.

You will be informed of the possibility to approach this mission by Specialist Traynor after you approach her on board [Normandy SR-2: Combat Information Center]. Before beginning the quest, become familiar with its details by using the nearby computer terminal and reading the message.

To begin, interact with the galaxy map and travel to Sigurd's Cradle. After getting there (Skepsis system), fly to the neighbouring system of Decoris (make sure you have enough fuel). There, approach planet Sanctum and land on it.

Hear out Admiral Hackett - he will ask you to obtain samples of Reapers technology - and begin the exploration of [Sanctum: Cerberus Labs].

There are two Reaper artifacts which you have to obtain in total and I'd suggest you follow the left path to reach the first. You of course need to be ready to encounter Cerberus soldiers around, though you can attack them by surprise. Try to eliminate the Guardians, Centurions and Engineers in the first place. The last ones are especially important, as they can mount turrets if left alone.

Before deciding to obtain the artifact marked by the game, you should take a look around the area to find some funds [3000 credits] [4000 credits], [Sniper Rifle Enhanced Scope], Med Station [50 EXP] and a journal entry [18 EXP]. After exploring the area, approach the containment console, use it and take the Reaper Artifact [150 EXP]. Return with it onto the shuttle [150 EXP], though be sure to restock on ammo.

The second artifact can be found to the right of the landing zone and can be accessed by following the path by the shuttle or one of the corridors located nearby where the first artifact was. Regardless of the chosen path you will have to deal with lots of Cerberus soldiers on your way. Don't let them surprise you, once again especially looking out for the elite kinds.

Just like last time, before you pick up the artifact you should look around the other part of the facility to find: [3000 credits], failed medi-gel experiment (new side mission Citadel: Alien Medi-Gel Formula) and a journal entry [18 EXP].

In the end head to the second artifact and use the containment console. Deal with two more Troopers and pick up the Reaper Artifact [150 EXP].

Listen to Cortez as he will inform you of the arrival of Cerberus reinforcements and the need to defend from their attacks. Be sure to place your team mates in such places that they can cover both paths leading to you position. I'd suggest not moving from here and successively eliminating the enemy forces, the more that there's an ammo depot nearby.

Run only after getting a confirmation of the possibility to evacuate [112 EXP]. I'd suggest choosing the left path and try not to stop anywhere for longer, as the game will regularly send in new enemy forces. After reaching the landing zone, deal with the highest placed enemies and afterwards quickly run to the shuttle to get on board and finish the mission.

Prizes for completing the mission:

1. [10000 credits]