Codex Entry Guide (Mass Effect: Andromeda)

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Similar to the Codex in the first Mass Effect game, some entries in Mass Effect: Andromeda require specific conditions to be unlocked. In previous games Codex entries are updated by the next game, but in Mass Effect: Andromeda some entries are revised depending on unfolding developments. The following is a list of all Codex entries in Mass Effect: Andromeda, along with their requisites for unlocking or updating.

“Make no mistake — this is a one-way trip.” — Spoilers for Mass Effect: Andromeda follow.

The Journey So Far[]

Entry	Requirement
Finding a Home
Battle on the Archon's Flagship	Hunting the Archon - entry depends on accomplishing either of mutually exclusive objectives: Rescue the captive salarians or Rescue the captive krogan
The Jardaan Discovery	The Journey to Meridian - entry depends on uncovering the reveal about angara being artificial creations
The Moshae's Rescue	A Trail of Hope II - entry depends on chosen decision during the mission objective Talk to Moshae Sjefa
Crisis on Habitat 7	Planetside - entry depends on choice taken during the mission objective Protect Fisher accomplishing or failing the objective Optional: Investigate the alien ruins accomplishing or failing the objective Optional: Explore the cave accomplishing or failing the objective Optional: Investigate the crashed alien ship accomplishing or failing the objective Optional: Locate Greer opinion about inheriting the Pathfinder role
The Traitor on Kadara Port	Hunting the Archon - entry depends on initial rapport with Sloane Kelly and Vehn Terev's fate
Eos: The First Outpost	A Better Beginning - entry depends on reactivating the Remnant vault chosen outpost purpose during the mission objective Establish an outpost at an appropriate site
The Nexus Council	Epilogue: Home and Away - entry depends on chosen ambassador in this mission
The Battle for Meridian	Meridian: The Way Home - entry depends on sibling's gender if all four Pathfinders ensured Nozomi Dunn's survival
First Contact: The Angara	Entries depend on completion of Helping Havarl's Scientists and/or Stage a Rescue
A Crew Like No Other
Nakmor Drack	A Better Beginning entry started after helping him with the kett on Fairwinds Basin entry amended after formal introductions entry appended after completing the objective Find Spender on the Nexus in Nakmor Drack: Krogan Betrayal
Cora Harper	A Better Beginning entry started after entering the Tempest entry amended after formal introductions
Romantic Entanglements
Kallo Jath	A Better Beginning entry started after entering the Tempest's bridge entry amended after formal introductions entry appended after asking about Kallo and Gil's apparent feud entry amended when Gil starts ignoring Kallo over comms, worsening the feud
Liam Kosta	A Better Beginning - entry started after entering the Tempest
Lexi T'Perro	A Better Beginning entry started after entering the Tempest entry amended after formal introductions entry appended after showing dissected kett to Jaal, content depends on whether Jaal is given hope for exaltation's reversibility or not
Peebee B'Sayle	A Better Beginning entry started after escaping the Eos vault entry amended after formal introductions
Vetra Nyx	A Better Beginning entry started after entering the Tempest's bridge entry amended after formal introductions
Gil Brodie	A Better Beginning entry started after entering the Tempest's bridge entry appended after getting an invite to a poker game
Suvi Anwar	A Better Beginning entry started after entering the Tempest's bridge entry amended after formal introductions entry amended after discussion on her religious beliefs and Ryder's own stance on this
Jaal Ama Darav	A Trail of Hope I entry started after formal introductions
Agent of Change
A New Path
A Devil's Bargain	Truth and Trespass - entry depends on chosen decision during mission objective Speak to the impostor in Kadara's caves
The First Generation	The Little Things That Matter - entry depends on completing the mission chosen decision during mission objective Contact Addison on Tempest vidcon
A Punishment to Fit the Crime	Nakmor Drack: A Future for our People - entry depends on chosen decision during mission objective Deal With Spender
The Primus Offer	Dissension in the Ranks - entry depends on chosen decision while talking to the Primus during the mission objective Investigate the building Meridian: The Way Home - entry updates if the mission objective Primus: Enemy of my enemy is unlocked
Ryder
Ongoing Psychological Profile: Pathfinder Ryder	Entry depends on dominant conversation tone choices action/inaction regarding Narrative Actions
The Ties That Bind	Entry depends on attitude towards Alec Ryder's death whether the sibling was visited during their coma being honest or lying about Alec's demise to the sibling upon their reawakening being honest or lying about whether humanity has a home when the sibling asks completion of Ryder Family Secrets
Exploring Heleus
Power Play for Kadara Port	High Noon - entry depends on who's controlling Kadara Port by the end of this mission
An Ancient Mind	Uncovering the Past - entry depends on Ancient AI's fate by the end of this mission
The Krogan Exiles	Search for the Stolen Remnant Drive Core - entry depends on who gets the Remnant drive core by the end of this mission
Fuelling Exploration	entry depends on completion of From the Dust and The Remnant Tiller

The Andromeda Initiative[]

Entry	Requirement
Known Associates
Peebee	A Better Beginning - available after formal introductions on the Tempest after her inclusion as a squad member
Kallo Jath	A Better Beginning - available after formal introductions after completing the objective Go to the bridge
Vetra Nyx	A Better Beginning - available after formal introductions after completing the objective Go to the bridge
Gil Brodie	A Better Beginning - available after formal introductions after completing the objective Go to the bridge
Lexi T'Perro	A Better Beginning - available after formal introductions after completing the objective Go to the bridge
Nakmor Drack	A Better Beginning - available after formal introductions on the Tempest after his inclusion as a squad member
SAM	Prologue: Hyperion - available at the beginning A Better Beginning - appended after completing the objective Speak with SAM on the Hyperion Ryder Family Secrets - complete this mission for appended entry
Scott Ryder	mutually exclusive with the Sara Ryder entry Prologue: Hyperion - complete Optional: Check on your brother available after cutscene on Hyperion's bridge if optional objective failed Hunting the Archon - complete this mission for appended entry Meridian: The Way Home - complete this mission for appended entry
Sara Ryder	mutually exclusive with the Scott Ryder entry Prologue: Hyperion - complete Optional: Check on your sister available after cutscene on Hyperion's bridge if optional objective failed Hunting the Archon - complete this mission for appended entry Meridian: The Way Home - complete this mission for appended entry
Alec Ryder	Prologue: Hyperion - available after cutscene on Hyperion's bridge Planetside - complete this mission for appended entry
Cora Harper	Prologue: Hyperion - available after cutscene on Hyperion's bridge
Jaal Ama Darav	A Trail of Hope I - available after formal introductions after completing the objective Return to the Tempest
Suvi Anwar	A Better Beginning - available after formal introductions after completing the objective Go to the bridge
Liam Kosta	Planetside - available at the beginning
Dr. Ellen Ryder	Prologue: Hyperion - available after cutscene on Hyperion's bridge Ryder Family Secrets - complete this mission for appended entry
The Initiative
The Andromeda Initiative	Prologue: Hyperion - available at the beginning
Andromeda Initiative: Golden Worlds	Prologue: Hyperion - available after cutscene on Hyperion's bridge
Glossary of Terms	Prologue: Hyperion - available at the beginning
Andromeda Initiative: Nexus Uprising	Nexus Reunion - available after meeting with Nexus leaders
Andromeda Initiative: Jien Garson	Prologue: Hyperion - available at the beginning Nexus Reunion - appended after meeting with Nexus leaders Ryder Family Secrets - complete this mission for appended entry
Andromeda Initiative: Launch	Prologue: Hyperion - available at the beginning
Andromeda Initiative: Militia and APEX	Nexus Reunion - speak with Tiran Kandros Task: Getting to Know the Nexus - appended after completing the objective Speak with Kandros
The Nexus
Nexus: Pathfinder HQ	A Better Beginning - available after completing the objective Speak with Tann at the Nexus Pathfinder HQ
The Nexus	Nexus Reunion - available after meeting with Nexus leaders
Nexus: Tiran Kandros	Nexus Reunion - speak with Tiran Kandros Task: Getting to Know the Nexus - appended after completing the objective Speak with Kandros
Nexus: Andromeda Initiative Director Tann	Nexus Reunion - speak with Jarun Tann
Nexus: Hydroponics	A Better Beginning - available after speaking with settlers on the Nexus' Docking Bay after completing the objective Establish an outpost at an appropriate site
Nexus: Cultural Exchange	A Better Beginning - available after speaking with settlers on the Nexus' Docking Bay after completing the objective Establish an outpost at an appropriate site A Trail of Hope II - appended after completing the objective Return with the Moshae to Aya
Nexus: Leadership	Nexus Reunion - available after meeting with Nexus leaders
Nexus: Heleus News Service	Available after first conversation with Davis Qar
Nexus: Nakmor Kesh	Nexus Reunion speak with Nakmor Kesh appended after speaking with Nakmor Drack during the first conversation with him aboard the Tempest
Nexus: William Spender	Nakmor Drack: Krogan Betrayal - available after completing the objective Find Spender on the Nexus
Nexus: Foster Addison	Nexus Reunion - speak with Foster Addison
Pathfinders
Pathfinders: AI Partners	A Better Beginning - available after completing the objective Speak with SAM on the Hyperion
Pathfinders: Salarian Pathfinder	Hunting the Archon available after completing the objective Infiltrate the kett ship appended after returning to the Tempest upon completion of the objective Escape the kett ship
Pathfinders: Asari Pathfinder	Cora Harper: Asari Ark - available after completing the objective Speak with Cora on the Tempest
Pathfinders: Implants	A Better Beginning - available after completing the objective Speak with SAM on the Hyperion
Role of a Pathfinder	Prologue: Hyperion - available at the beginning
Pathfinders: Turian Pathfinder	Turian Ark: Not Dead Yet - available after completing the objective Speak with the turian leader

Ark Species[]

Entry	Requirement
Asari
Asari: History	Prologue: Hyperion - available at the beginning
Asari	Prologue: Hyperion - available at the beginning
Asari: Culture and Society	Prologue: Hyperion - available at the beginning
Asari: Biology	Prologue: Hyperion - available at the beginning
Humans
Humans: Systems Alliance	Prologue: Hyperion - available at the beginning
Humans: N7	Prologue: Hyperion - talk to David Fisher after cutscene on Hyperion's bridge available at the beginning of Nexus Reunion if skipped
Humans: Early Spaceflight	A Better Beginning - take the Space-X rocket in the Pathfinder's Quarters
Krogan
Krogan: Overlord Nakmor Morda
Krogan: Culture and Society	Nexus Reunion - available after meeting with Nexus leaders
Krogan: Biology	Nexus Reunion - available after meeting with Nexus leaders
Krogan: History	Nexus Reunion - available after meeting with Nexus leaders
Krogan	Nexus Reunion - available after meeting with Nexus leaders
Salarians
Salarians: History	Nexus Reunion - available after meeting with Nexus leaders
Salarians	Nexus Reunion - available after meeting with Nexus leaders
Salarians: Culture	Nexus Reunion - available after meeting with Nexus leaders
Salarians: Biology	Nexus Reunion - available after meeting with Nexus leaders
Turians
Turians: Culture and Society	Nexus Reunion - available after first meeting with Tiran Kandros
Turians	Nexus Reunion - available after first meeting with Tiran Kandros
Turians: Biology	Nexus Reunion - available after first meeting with Tiran Kandros
Turians: History	Nexus Reunion - available after first meeting with Tiran Kandros

Andromeda Species[]

Entry	Requirement
Angara
Angaran Culture: Law and Politics
Angara: Evfra de Tershaav	A Trail of Hope I - available after completing the objective Enter the Angaran Resistance Headquarters
Angara: Culture	Helping Havarl's Scientists - available after completing the objective Return to Kiiran Dals
Angaran Culture: Military Doctrine
Akksul	Jaal Ama Darav: Friend or Foe? I - available after completing the objective Speak to Jaal on the Tempest
Angara: Spirituality	A Trail of Hope II - available after completing the objective Meet Evfra at the Resistance HQ
Angara: Lost Colony Worlds	A Trail of Hope II - available after completing the objective Meet Evfra at the Resistance HQ
Angara: Languages	Helping Havarl's Scientists - available after completing the objective Return to Kiiran Dals
Angara: The Roekaar	A Trail of Hope I - available after completing the objective Return to the Tempest
Angara: Technology	Helping Havarl's Scientists - available after completing the objective Return to Kiiran Dals
Angaran Culture: Economics
Angara: The Resistance	A Trail of Hope I - available after completing the objective Return to the Tempest
Angara	A Trail of Hope I - available after completing the objective Enter the Angaran Resistance Headquarters Helping Havarl's Scientists - updated after completing the objective Return to Kiiran Dals
Angara: Biology
Angara: History	Available after first conversation with Avela Kjar
Angara: Moshae Sjefa	A Trail of Hope II - available after returning to the Tempest upon completion of the objective Reach the shuttle
Kett
Kett: Fiend	A Trail of Hope II - available after returning to the Tempest upon completion of the objective Reach the shuttle
Kett: Ascendant
Kett: The Archon	A Trail of Hope I - available after completing the objective Enter the Angaran Resistance Headquarters A Trail of Hope II - initial entry overwritten after completing the objective Take the shuttle to the Aya vault
Unknown Species / Kett	initially described as "Unknown Species" Planetside - available after first contact with David Fisher Nexus Reunion - formally named afer speaking with Foster Addison A Trail of Hope II - appended after returning to the Tempest upon completion of the objective Reach the shuttle
Kett: The Archon's Sword	Hunting the Archon - available after returning to the Tempest upon completion of the objective Escape the kett ship
Kett: Technology	A Trail of Hope II - available after returning to the Tempest upon completion of the objective Reach the shuttle
Kett: Destined	Available after first Destined kill
Kett: Anointed	A Better Beginning - available after first Anointed kill A Trail of Hope II - appended after returning to the Tempest upon completion of the objective Reach the shuttle
Kett: Chosen	A Better Beginning - available after first Chosen kill A Trail of Hope II - appended after returning to the Tempest upon completion of the objective Reach the shuttle
Kett: Secret Intelligence
Kett: Wraith	A Better Beginning - available after first Wraith kill A Trail of Hope II - appended after returning to the Tempest upon completion of the objective Reach the shuttle
Kett: Behemoth	Hunting the Archon - available after completing the objective Kill the exalted krogan and the kett
Kett: Biology	A Trail of Hope II - available after returning to the Tempest upon completion of the objective Reach the shuttle
Kett: Primus	Hunting the Archon - available after returning to the Tempest upon completion of the objective Escape the kett ship
Kett: Culture	Hunting the Archon - available after returning to the Tempest upon completion of the objective Escape the kett ship
Kett: Exaltation	A Trail of Hope II - available after returning to the Tempest upon completion of the objective Reach the shuttle
Flora and Fauna
Andromeda Wildlife: Overview	A Better Beginning - available after completing the objective Escape the vault
Andromeda Wildlife: Manta	Planetside - triggered when Pathfinder Ryder and Liam Kosta notice flying creatures overhead after traversing the section of the path riddled by lightning strikes
Outlaws
Outlaws: Agent
Outlaws: Adhi	available after first Adhi kill (domesticated variant, not Wild Adhi)
Outlaws: The Collective
Outlaws: Berserker
Outlaws: Saboteur	available after first Saboteur kill (Outlaw or Roekaar variants equally acceptable)
Outlaws: Sharpshooter	available after first Sharpshooter kill (Outlaw or Roekaar variants equally acceptable)
Outlaws: Pariah
Outlaws: Hydra
Sloane Kelly	Hunting the Archon - available after completing the objective Meet Sloane Kelly in the Outcast headquarters on Kadara Port High Noon - appended after completing the objective Meet Sloane at the Charlatan's specified location
Reyes Vidal	Hunting the Archon - available after completing the objective Speak to the Resistance contact at Kralla's Song. High Noon - appended after completing the objective Meet Sloane at the Charlatan's specified location
Outlaws: Raider	available after first Raider kill (Outlaw or Roekaar variants equally acceptable)
Outlaws: Anarchist
Outlaws: Outcasts	Hunting the Archon - available after speaking with the Outcast Recruiter on Kadara Market
The Remnant
Remnant: Interfacing	A Better Beginning - available after accomplishing the objective Defeat the hostile bots
Remnant Data Core
Poc
Remnant: Creators	A Better Beginning - available after completing the objective Escape the vault
Remnant Breacher	A Better Beginning - available after first Breacher kill
Remnant: Decryption	A Better Beginning - available after accomplishing the objective Defeat the hostile bots
Remnant Destroyer	available after first Destroyer scan or kill
Remnant Architect
Remnant Nullifier	available after first Nullifier kill
Remnant Assembler	A Better Beginning - available after first Assembler kill
Unknown Technology / The Remnant	initially described as "Unknown Technology" Planetside - available after encountering massive alien structures across a chasm available after meeting with Alec Ryder if the above is skipped Nexus Reunion - updated at the beginning of the mission A Better Beginning - updated after accomplishing the objective Defeat the hostile bots
Remnant Observer	A Better Beginning - available after first Observer kill
Remnant Abyssal

Planets And Locations[]

Entry	Requirement
Planets And Locations
Habitat 7	Planetside - available at the beginning
Elaaden	available upon first landing on the world
Havarl	available upon first landing on the world
Unknown Phenomenon / The Scourge	initially described as "Unknown Phenomenon" Prologue: Hyperion - available after cutscene on Hyperion's bridge Planetside - appended entry at the beginning of the mission Nexus Reunion - formally named as The Scourge after speaking with Jarun Tann Updated on encountering Remnant structures infested by Scourge tendrils A Trail of Hope II - appended after returning to the Tempest upon completion of the objective Reach the shuttle
Aya	A Trail of Hope I - available after completing the objective Follow Paaran Shie Hunting the Archon - appended after returning to the Tempest upon completion of the objective Interrogate Vehn Terev
The Andromeda Galaxy	Prologue: Hyperion - available at the beginning
Meridian	A Trail of Hope II - available after completing the objective Take the shuttle to the Aya vault
Port Meridian
H-047c	Available upon first landing on the world
Ryder-I
Eos	A Better Beginning available after completing the objective Land on Eos updated after completing the objective Establish an outpost at an appropriate site
Black Hole: H-012 "Ketos"	A Trail of Hope I available after completing the objective Go to the Onaon system appended after completing the objective Return to the Tempest
Voeld	available upon first landing on the world
Khi Tasira
Kadara	available upon first landing on the world High Noon - appended after completing the objective Meet Sloane at the Charlatan's specified location

Technology[]

Entry	Requirement
Exploration Tools
Scanner	Prologue: Hyperion - reset the power relay
Field Repurposing	Planetside - available on first encounter with a supply cache
Jump-Jets	Planetside - available when Liam Kosta recommends using jump-jets to navigate
Technology: Consumable Resources	Planetside - available on first obtained resource
Omni-Tools	Prologue: Hyperion - available at the beginning
Research and Development
Technology: Materials	A Better Beginning - available after unlocking Site 1: Promise's research center
Technology: Weapon and Armor Mods	A Better Beginning - available on first insertion of a weapon or armor mod
Technology: Augmentations	available on first weapon or armor crafting with included augmentation
Technology: Research Center	A Better Beginning - available after unlocking Site 1: Promise's research center
Settling Heleus
Technology: Charting Andromeda	Prologue: Hyperion - available at the beginning
Communications and QEC	Nexus Reunion - available after meeting with Nexus leaders
Technology: Forward Stations	A Better Beginning - available after completing the objective Call down a forward station
Technology: Mining	A Better Beginning - available after the first scan of a mineral node
Technology: Terraforming	A Better Beginning - available after completing the objective Escape the vault
Cryogenic Stasis	Prologue: Hyperion - available at the beginning
Tech and Biotics
Technology: Element Zero (Eezo)	Prologue: Hyperion - available at the beginning
Technology: FTL Drive	Prologue: Hyperion - available at the beginning
Technology: Mass Effect Fields	Prologue: Hyperion - available at the beginning
Technology: Artificial Intelligence	A Better Beginning - available after completing the objective Speak with SAM on the Hyperion
Technology: Biotics	Planetside - available after Cora Harper's biotic rescue of Dr. Harry Carlyle and Hayes

Ships And Vehicles[]

Entry	Requirement
Ships And Vehicles
Ark Paarchero	Nexus Reunion - speak with Jarun Tann about the arks Hunting the Archon appended after entering the ark's cryobay upon completion of the objective Locate the kett flagship in the Tafeno system updated after returning to the Tempest upon completion of the objective Escape the kett ship
ND1 Nomad	A Better Beginning - available after completing the objective Scan containers to find a vehicle
The Tempest	A Better Beginning - available after completing the objective Go to your ship
Remnant: Starships
The Verakan
Ark Leusinia	Nexus Reunion - speak with Jarun Tann about the arks
Tempest: ODSY Drive	A Better Beginning - available after scanning the Tempest's drive core
Tempest: Technology	A Better Beginning - available after speaking with Kallo Jath after completing the objective Go to the bridge
Tempest: Research Capabilities	A Better Beginning - available after completing the objective Go to your ship
Tempest: Stealth System	A Better Beginning - available after completing the objective Go to the bridge
Ark Natanus	Nexus Reunion - speak with Jarun Tann about the arks
Kett Starships	A Trail of Hope I - available after completing the objective Go to the Onaon system
Tempest: Laboratories	A Better Beginning - available on first visit to the tech lab
Ark Hyperion	Prologue: Hyperion - available at the beginning

	Mass Effect: Andromeda Guides
	Completion	Walkthrough • Dialogue • Inventory • Experience • Remnant Decryption Puzzles • Hang Time Achievement Guide • Codex Entry Guide (Mass Effect: Andromeda)
	Profiles	Soldier • Engineer • Adept • Sentinel • Vanguard • Infiltrator • Explorer
	Other	Squad Members • Merchants • Skills • Research • Development • Narrative Actions