Mass Effect 3

I. Side Mission Objective Locations

The in-game Journal does a pretty bad job at tracking side missions. It never updates as you complete steps. If you put off a sidequest and forgot what you were supposed to do or who you were supposed to talk to, you can get completely lost with no in-game way to know what to do next.

Each heading represents the story mission you must have in your Journal finished to acquire and/or complete the side mission. For example, a mission listed under Priority: Palaven means you must have that in your Journal to acquire and complete the mission. Some side missions can be acquired earlier in the story but can only be completed later in the story.

Priority: Palaven

N7 Cerberus Lab
Quest Giver: Specialist Traynor
Galaxy Location: Sigurd’s Cradle / Decoris / Sanctum

Priority: Palaven to acquire, Priority: Sur’Kesh to complete

Shrike Abyssal: Prothean Obelisk
Quest Giver: Volus diplomat at the Citadel Embassies
Galaxy Location: The Shrike Abyssal / Urla Rast / Talis Fia

Apien Crest: Banner of the First Regiment
Quest Giver: Turian officer at Purgatory
Galaxy Location: Apien Crest / Castellus / Digerus

Citadel: Alien Medi-Gel Formula
Quest Giver: Doctor at Huerta Memorial Hospital
Galaxy Location: Sigurd’s Cradle / Decoris / Sanctum (during N7 Cerberus Lab mission) OR Spectre Acquisitions kiosk

Kite’s Nest: Pillars of Strength
Quest Giver: Batarian preacher near Cargo Hold: C at the Docks: Holding Area
Galaxy Location: Kite’s Nest / Harsa / Khar’shan

Priority: Sur’Kesh

Aria: Blood Pack
Quest Giver: Aria at Purgatory
Galaxy Location: Citadel Only

Aria: Blue Suns
Quest Giver: Aria at Purgatory
Galaxy Location: Citadel Only

Aria: Eclipse
Quest Giver: Aria at Purgatory
Galaxy Location: Citadel Only

Citadel: Hanar Diplomat
Quest Giver: Email from Jondum Bau near Commander Bailey’s Office at Citadel Embassies
Galaxy Location: Citadel Only

Ismar Frontier: Prototype Components
Quest Giver: Salarian doctor in Heurta Memorial Hospital across from Kaiden’s or Ashley’s room.
Galaxy Location: Ismar Frontier / Aquila / Metaponto

Grissom Academy: Emergency Evacuation
Quest Giver: Specialist Trayner
Galaxy Location: Petra Nebula / Grissom Academy

  • Citadel: Biotic Amp Interfaces
    Quest Giver: Asari in the Lab Services at Huerta Memorial Hospital
    Galaxy Location: Petra Nebula / Grissom Academy (during Grissom Academy: Emergency Evacuation mission)

Priority: Sur’Kesh to acquire, Priority: Tuchanka to complete

Benning: Evidence
Quest Giver: Dominic Osoba at Citadel Embassies
Galaxy Location: Arcturus Stream / Euler / Benning (during N7 Cerberus Abductions mission) OR Spectre Acquisitions kiosk

Citadel: Barla Von
Quest Giver: Liara at Apollo’s Cafe at the Presidium Commons
Galaxy Location: Krogan DMZ / Dranek / Rothla

Citadel: Improved Power Grid
Quest Giver: Alison at the Purgatory entrance
Galaxy Location: Krogan DMZ / Aralakh / Tuchanka (during N7: Cerberus Attack mission) OR Spectre Acquisitions kiosk

Priority: Sur’Kesh to acquire, Priority: Perseus Veil to complete

Citadel: Heating Unit Stabilizers
Quest Giver: Overhear Sellea’s conversation near C-Sec Outpost at the Presidium Commons
Galaxy Location: Horse Head Nebula / Pax / Noveria (during N7: Cerberus Fighter Base mission) OR Spectre Acquisitions kiosk

Irune: Book of Plenix
Quest Giver: Volus near Elkoss Combine kiosk at the Presidium Commons
Galaxy Location: Aethon / Aru / Irune

Priority: Tuchanka

Attican Traverse: Krogan Team
Quest Giver: Speak to Urdnot Wrex immediately after completion of Priority: Sur’Kesh
Galaxy Location: Ninmah / Mulla Xul / Utukku

  • Citadel: Krogan Dying Message
    Quest Giver: Ereba at the Nos Astra Sporting Goods kiosk at the Presidium Commons
    Galaxy Location: Ninmah / Mulla Xul / Utukku (during Attican Traverse: Krogan Team mission) OR Spectre Acquisitions

Tuchanka: Turian Platoon
Quest Giver: Speak to Primarch Victus immediately after completion of Priority: Sur’Kesh
Galaxy Location: Krogan DMZ / Aralakh / Tuchanka

Tuchanka: Bomb (timed)
Quest Giver: Automatically given during the Tuchanka: Turian Platoon mission
Galaxy Location: Krogan DMZ / Aralakh / Tuchanka

Citadel: GX12 Thermal Pipe
Quest Giver: Engineer Adams
Galaxy Location: Citadel (Elkoss Combine Arsenal Supplies kiosk)

N7: Cerberus Attack
Quest Giver: Specialist Traynor
Galaxy Location: Krogan DMZ / Aralakh / Tuchanka

N7: Cerberus Abductions
Quest Giver: Automatically given after completing either Attican Traverse: Krogan Team or Tuchanka: Turian Platoon
Galaxy Location: Arcturus Stream / Euler / Benning

Priority: Tuchanka to acquire, Priority: Perseus Veil to complete

Citadel: Cerberus Automated Turret Schematics
Quest Giver: Overhear a C-Sec Officer at the C-Sec Outpost at the Presidium Commons
Galaxy Location: Krogan DMZ / Aralakh / Tuchanka (during Tuchanka: Bomb mission)

Priority: Citadel II

N7: Cerberus Fighter Base
Quest Giver: Specialist Traynor
Galaxy Location: Horse Head Nebula / Pax / Noveria

Priority: Perseus Veil

Arrae: Ex-Cerberus Scientists
Quest Giver: Specialist Traynor
Galaxy Location: Minos Wasteland / Arrae / Gellix

  • Citadel: Cerberus Turian Poison
    Quest Giver: Speak with a doctor in Lab Services at the Huerta Memorial Hospital or find the poison during the Ex-Cerberus Scientists mission
    Galaxy Location: Minos Wasteland / Arrae / Gellix (during the Ex-Cerberus Scientists mission)

Kallini: Ardat-Yakshi Monastery
Quest Giver: Liara T’Soni immediately after the Priority: Citadel II debriefing
Galaxy Location: Numbus / Mesana / Lesuss

  • Citadel: Asari Widow
    Quest Giver: Investigate a datapad during the Kallini: Ardat-Yakshi Monastery mission
    Galaxy Location: Numbus / Mesana / Lesuss (during the Kallini: Ardat-Yakshi Monastery mission)

Athena Nebula: Hesperia-Period Statue
Quest Giver: Overhear an asari scientist at the Bank at the Presidium Commons
Galaxy Location: Athena Nebula / Vernio / Polissa

Citadel: Batarian Codes
Quest Giver: Speak to Jordan Noles at the C-Sec Outpost at the Presidium Commons
Galaxy Location: Citadel Only

Citadel: Cerberus Retribution
Quest Giver: Two arguing citizens on the stairs down to C-Sec Outpost at the Presidium Commons
Galaxy Location: Citadel Only

Citadel: Inspirational Stories
Quest Giver: Solik Vass at the Docks: Holding Area security checkpoint
Galaxy Location: Citadel Only

Citadel: Medical Supplies
Quest Giver: Specialist Traynor after returning from the Citadel the first time after completing Priority: Citadel II
Galaxy Location: Citadel Only

Citadel: Medi-Gel Sabotage
Quest Giver: Speak with Clinic Doctor at Cargo Hold:B of the Docks: Holding Area
Galaxy Location: Citadel Only

Citadel: Volus Ambassador
Quest Giver: Read email from Primarch Victus on your private terminal
Galaxy Location: Citadel Only

Citadel: Wounded Batarian
Quest Giver: Presidium Commons near the stairs to the courtyard
Galaxy Location: Citadel Only

Nimbus Cluster: Library of Asha
Quest Giver: Overhear asari on the staircase up to the dance floor of Purgatory OR scan the artifacts ahead of time in the galaxy
Galaxy Location: Nimbus / Agaiou / Carcosa

Valhallan Threshold: Prothean Data Drives
Quest Giver: Overhear a soldier at Docking Bay D24
Galaxy Location: Vallhallan Threshold / Paz / Garvug

Priority: Perseus Veil to acquire, Priority: Rannoch to complete

Citadel: Chemical Treatment
Quest Giver: Overhear a human and salarian doctor at Heurta’s Lab Services 4 OR find the chemicals during the N7 Fuel Reactors mission
Galaxy Location: Vallhallan Threshold / Paz / Garvug (during the N7 Fuel Reactors mission)

Citadel: Kakliosaur Fossil
Quest Giver: Overhear a salarian outside Apartment 90 at the Presidium Commons
Galaxy Location: Argus Rho / Phoenix / Intai’sei

Citadel: Reaper Code Fragments
Quest Giver: Overhear an asari’s conversation at the Citadel Embassies OR pick up code fragments during the Rannoch: Geth Fighter Squadrons mission
Galaxy Location: Perseus Veil / Tikkun / Rannoch (during the Rannoch: Geth Fighter Squadrons mission)

Citadel: Target Jamming Technology
Quest Giver: Overhear a turian officer’s comm call at Apollo’s Cafe at the Presidium Commons OR pick up the jamming technology during the Rannoch: Admiral Koris mission
Galaxy Location: Perseus Veil / Tikkun / Rannoch (during the Rannoch: Admiral Koris mission)

Priority: Perseus Veil to acquire, Priority: Citadel III to complete

Dekuuna: Code of the Ancients
Quest Giver: Overhear an angry elcor just outside Purgatory elevator OR scan Dekunna ahead of time
Galaxy Location: Silean Nebula / Phontes / Dekuuna

Silean Nebula: Rings of Alune
Quest Giver: Overhear an asari consultant to the right of the Heurta elevator
Galaxy Location: Silean Nebula / Teyolia / Nevos

Hades Nexus: Obelisk of Karza
Quest Giver: Overhear a researcher with a datapad at the courtyard at the Presidium Commons
Galaxy Location: Hadex Nexus / Hoplos / Makhaira / Kopis (moon)

Hades Nexus: Prothean Sphere
Quest Giver: Overhear a refugee in the Docks: Holding Area near Bay E28
Galaxy Location: Hadex Nexus / Sheol / Gei Hinnom

Priority: Perseus Veil to acquire, Priority: Horizon to complete

Citadel: Cerberus Ciphers
Quest Giver: Overhear a Officer Dellik at the end of the Citadel Embassies hallway OR pick up the ciphers during the N7 Communications Hub mission
Galaxy Location: Kepler Verge / Newton / Ontaron (during the N7 Communications Hub mission)

Priority: Rannoch

N7: Fuel Reactors
Quest Giver: Specialist Traynor
Galaxy Location: Vallhallan Threshold / Paz / Garvug

Rannoch: Admiral Koris
Quest Giver: Admiral Raan immediately after completing Priority: Geth Dreadnought
Galaxy Location: Perseus Veil / Tikkun / Rannoch

Rannoch: Geth Fighter Squadrons
Quest Giver: Legion or Geth VI immediately after completing Priority: Geth Dreadnought
Galaxy Location: Perseus Veil / Tikkun / Rannoch

Priority: Citadel III

Dekuuna: Elcor Extraction
Quest Giver: Speak to the elcor at the terminal just right of the Citadel Embassies elevator OR scan Dekuuna ahead of time
Galaxy Location: Silean Nebula / Phontes / Dekuuna

Priority: Horizon

N7: Communication Hub
Quest Giver: Specialist Traynor
Galaxy Location: Kepler Verge / Newton / Ontaron

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