This is the timeline for the Mass Effect universe, based on the video game series by Bioware and its accompanying spin-off material in novels, comics, and mobile games.

The main games are in bold underlined black text, the downloadable content for the games is in underlined regular black text, the spin-off games for mobile devices are in bold gray underlined text, the novels are in bold italicized blue text, the Cerberus and Alliance news articles are in italicized blue text, the comics are in bold italicized green text, with short comic stories in italicized green text, and the 4D theme park ride Mass Effect - New Earth listed in bold purple text.

 

The years the events take place in are in bold underlined regular text, with the entries following. Certain flashback scenes aren't given a specific year, so are listed as "???? CE".

 

I've included tertiary stuff like Mass Effect 3 - Datapad and Mass Effect 3 - Multiplayer (and its various expansions). While there is little, if any, story expansion provided by those entries, they do help flesh out what was going on in the rest of the galaxy during the events of Mass Effect 3 outside of Shepard's team. I also included the Blasto - Eternity is forever short comic story. It doesn't act as something actually happening in the overall story itself, but as a fictional film character and story within the Mass Effect universe. Again, its merely a tertiary expansion of the universe in that regard.


 

 

 

 

???? CE

Mass Effect - Homeworlds #3  (pg. 1-2)

 

 

2157 CE

Mass Effect - Revelation  (Prologue)

Mass Effect - Evolution #1

Mass Effect - Evolution #2

Mass Effect - Evolution #3

Mass Effect - Evolution #4

 

 

2160 CE

Mass Effect - Foundation #13  (pg. 1-2, 8, 14)

 

 

2161 CE

Mass Effect - Foundation #1  (pg. 1-21)

 

 

2165 CE

Mass Effect - Revelation  (Ch. 1-22, Epilogue)

 

 

2168 CE

Mass Effect - Foundation #4  (pg. 1-20)

 

 

???? CE

Mass Effect - Foundation #12  (pg. 2-22)

 

 

2175 CE

Mass Effect - Foundation #10  (pg. 3-20, 1-2, 21-22)

 

 

2176 CE

Mass Effect - Homeworlds #1  (pg. 3-21)

 

 

???? CE

Mass Effect - Homeworlds #3  (pg. 5)

Mass Effect - Foundation #11  (pg. 3)

 

 

2183 CE

Mass Effect - Galaxy

Mass Effect - He Who Laughs Best

Mass Effect - Homeworlds #3  (pg. 6-7)

Mass Effect - Foundation #1  (pg. 22)

Mass Effect - Foundation #2

Mass Effect - Homeworlds #2  (pg. 3-18, 1-2, 19-20)

Mass Effect

Mass Effect - Foundation #3

Mass Effect - Bring Down the Sky

Mass Effect - Pinnacle Station

Mass Effect - Homeworlds #2  (pg. 21)

Mass Effect - Foundation #4  (pg. 21-22)

Mass Effect - Incursion

Mass Effect 2  (Prologue)

Mass Effect - Foundation #5

Mass Effect - Foundation #6

Mass Effect - Redemption #1

Mass Effect - Redemption #2

Mass Effect - Redemption #3

Mass Effect - Redemption #4

Mass Effect - Foundation #7

Mass Effect - Foundation #8

Mass Effect - Foundation #9

Mass Effect - Ascension

Mass Effect - Paragon Lost  (0:00:00 - 0:21:28)

Mass Effect - Homeworlds #3  (pg. 8-9)

 

 

2184 CE

Mass Effect - Homeworlds #3  (pg. 10-16)

Mass Effect - Foundation #11  (pg. 1, 4-7, 2, 8-22)

Mass Effect - Foundation #12  (pg. 1)

Mass Effect - Foundation #13  (pg. 2-7, 9-13, 15-22)

 

 

2185 CE

Mass Effect - Genesis

Mass Effect 2

Mass Effect - Homeworlds #3  (pg. 3-4, 17-22)

Mass Effect - Paragon Lost  (0:21:29 - 1:30:40)

Mass Effect 2 - Zaeed:  The Price of Revenge

Mass Effect 2 - Kasumi:  Stolen Memory

Mass Effect 2 - Normandy Crash Site

Mass Effect 2 - Firewalker

Mass Effect 2 - Overlord

Mass Effect 2 - Lair of the Shadow Broker

Mass Effect - Cerberus Daily News

 

 

2186 CE

Mass Effect - Retribution

Mass Effect - Inquisition

Mass Effect - Deception

Mass Effect 2 - Arrival

Mass Effect - Conviction

Mass Effect - Invasion #1

Mass Effect - Invasion #2

Mass Effect - Invasion #3

Mass Effect - Invasion #4

Mass Effect - Infiltrator

Mass Effect - Infiltrator:  Incarceration

Mass Effect - Homeworlds #4

Mass Effect - Blasto:  Eternity is Forever

Mass Effect - Alliance News Network

Mass Effect - New Earth

Mass Effect - Genesis 2

Mass Effect 3

Mass Effect - Homeworlds #1  (pg. 1-2, 22)

Mass Effect 3 - From Ashes

Mass Effect 3 - Leviathan

Mass Effect 3 - Omega

Mass Effect 3 - Citadel

Mass Effect 3 - Datapad

Mass Effect 3 - Multiplayer

Mass Effect 3 - Multiplayer:  Resurgance

Mass Effect 3 - Multiplayer:  Rebellion

Mass Effect 3 - Multiplayer:  Earth

Mass Effect 3 - Multiplayer:  Retaliation

Mass Effect 3 - Multiplayer:  Reckoning

Mass Effect - Homeworlds #2  (pg. 22)

Mass Effect 3 - Extended Cut

 

 

2819 CE

Mass Effect - Discovery #1   (May 24, 2017)

Mass Effect - Discovery #2   (June ??, 2017)

Mass Effect - Discovery #3   (July ??, 2017)

Mass Effect - Discovery #4   (August ??, 2017)

Mass Effect - Andromeda:  Nexus Uprising   (March 28, 2017)

Mass Effect - Andromeda

Mass Effect - Andromeda:  Annihilation   (July ??, 2017)

Mass Effect - Andromeda:  Initiation   (November ??, 2018)