Mass Effect: Argos Rho - Uncharted World walkthrough Mass Effect Guide
Last update: 18 May 2021
13.1. Argos Rho
13.1.1. System Phoenix
Planet | Explorable | Surveyable | Collectibles |
Carbon asteroid (hidden) | no | yes | Prothean data disc |
Patashi | no | yes | Rare earths |
Sylsalto | no | no | - |
Tuntau | yes | no | Heavy metals, light metals, asari writings |
Vebinok | no | yes | Light metals |
13.1.1.1. Tuntau
 | Planet Tuntau 1. Heavy metal 2. Crashed probe 3. Light metal 4. Asari writings 5. Pirate base (Wrex: Family armor) |
Wrex: Family armor
If you use all opportunity to talk with Wrex on Normandy after completing missions on two of three planets related to the main plot (5. Therum, 6. Feros, 7. Noveria), krogan will tell you about a missing family armor.
It can be found on planet Tuntau, in pirate base on southwest (Tuntau - 5). Eliminate the guards outside and inside. After clearing the area, go upstairs, to the back room to find the armor (and few useful objects as well).
13.1.2. Hydra System
Planet | Explorable | Surveyable | Collectibles |
Metgos | yes | no | Rare earths, heavy metals, turian insignias |
Canrum | no | yes | Turian insignias |
Syba | no | yes | Gas deposit |
13.1.2.1. Metgos
 | Planet Metgos 1. Heavy metal 2. Signal - trap (Distress call) 3. Rare earths 4. Turian insignias 5. Crashed probe 2 hazard level |
Distress call
On Citadel, in ambassador Udina Office, decrypt the terminal to get a message about distress call from Hydra system.
After landing on Metgos, head toward the signal (Metgos - 2). It will turn out to be a geth ambush. Stay in Mako and eliminate first armatures and then infantry. After killing them all, the assignment will be completed.
13.1.3. Gorgon System
Planet | Explorable | Surveyable | Collectibles |
Depot (Depot Sigma-23) | yes | no | - |
Wuo | no | no | - |
Slekon | no | no | - |
Sharblu | no | no | - |
Vectra | no | no | - |
Camaron | no | no | - |
Depot Sigma-23
While completing assignment 13.14.1.1. Listening Post Theta, you'll find a terminal with data about localization of facility delivering cargo with rachnii. It can be found in Gorgon system.
In the main hold there will be some rachnii. Clear the area gradually, otherwise you'll risk being surrounded.
After the fight head to the room on the northeast of the station. Read the data in terminal to find out who was responsible for sending rachnii across the galaxy.
Arm the nearby demolition charge. You'll have a limited amount of time to get out the facility and come back to Normandy. There will be more rachnii, but there will be no time to fight them. Get through them and run to the exit.