Mass Effect Lore Quiz: 15 Questions for Real Fans
Fifteen questions on the Mass Effect story, from Eden Prime and the Collectors to the Crucible and the Andromeda Initiative. Every answer links to a cited explainer if you want the full story.
How well do you know the Mass Effect story? This quiz runs through the main plot of the trilogy and Andromeda, from Saren and Sovereign to the Reaper War and the Heleus Cluster. Every answer comes with a short explanation and points you to a cited explainer if you want the whole thing. (Mass Effect; Mass Effect 2; Mass Effect 3; Mass Effect: Andromeda)
Mass Effect lore quiz
0/15 answered · 0 correct1. What do the Reapers do to the galaxy every 50,000 years?
2. Who commands the Normandy SR-1 at the start of the first game, with Shepard as executive officer?
3. Which turian Spectre shoots Nihlus in the back on Eden Prime?
4. Who leads Cerberus and pays to bring Shepard back to life in Mass Effect 2?
5. On Virmire, Shepard has time to save only one squadmate. Kaidan Alenko is one option. Who is the other?
6. Which Prothean VI on Ilos explains that the Citadel is a relay to dark space?
7. Benezia's daughter joins Shepard's crew after being rescued from Prothean ruins. Where was she trapped?
8. What are the Collectors really?
9. What were the Collectors building from the abducted human colonists?
10. What does Shepard destroy in the Arrival add-on to delay the Reaper fleet?
11. The Crucible needs one last piece called the Catalyst. What turns out to be the Catalyst?
12. On Feros, which ancient creature controls the colonists?
13. According to the Leviathan add-on, who built the Catalyst?
14. Who founded the Andromeda Initiative?
15. Which hidden world controls every Remnant vault in the Heleus Cluster?
Go deeper#
- Mass Effect story explained, the whole series in order. (Mass Effect; Mass Effect 3; Mass Effect: Andromeda)
- Mass Effect story, from Eden Prime to the Battle of the Citadel. (Mass Effect)
- Mass Effect 2 story, the Lazarus Project and the suicide mission. (Mass Effect 2)
- Mass Effect 3 ending explained, the Catalyst and every choice. (Mass Effect 3; Mass Effect 3: Leviathan)
- Mass Effect: Andromeda story, the Initiative in the Heleus Cluster. (Mass Effect: Andromeda)
- The Collectors, the Protheans the Reapers remade. (Mass Effect 2)
- Vigil, the Prothean VI on Ilos. (Mass Effect)
- Saren Arterius, the Spectre who served Sovereign. (Mass Effect)
Frequently asked questions
- How hard is this Mass Effect quiz?
- About five questions are easy if you've finished the trilogy, six need a decent memory of the main story, and four are hard, pulling in side details like the Thorian and the founder of the Andromeda Initiative.
- Where do the answers come from?
- Every answer comes from the games themselves, through our cited story pages for Mass Effect, Mass Effect 2, Mass Effect 3 and Andromeda. Each explanation names the page to read for more.
- Does the quiz cover Mass Effect: Andromeda?
- Yes, a few questions do. Most of the quiz is about Shepard's trilogy, but the Andromeda Initiative and the Heleus Cluster get a look in too.
- Does it spoil the endings?
- It covers the whole trilogy, including what the Crucible's missing piece turns out to be, so play through Mass Effect 3 first if you want to avoid that.
Sources
- GameMass Effect, BioWare, 2007
- GameMass Effect 2, BioWare, 2010
- GameMass Effect 2: Arrival, BioWare, 2011
- GameMass Effect 3, BioWare, 2012
- GameMass Effect 3: Leviathan, BioWare, 2012
- GameMass Effect: Andromeda, BioWare, 2017
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

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Mass Effect 2 Story Explained: Plot Summary and the Suicide Mission
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Mass Effect 3 Story and Ending Explained: Destroy, Control, Synthesis and Refuse
The Mass Effect 3 story in order and every ending explained: what the Catalyst is, what Destroy, Control, Synthesis and Refuse each do, and what the Extended Cut changed.

Mass Effect: Andromeda Story Explained
The plot of Mass Effect: Andromeda in order, from the Hyperion's arrival in the Heleus Cluster to the battle for Meridian. Who the kett are, what the Remnant vaults do, and what the ending leaves open.

Mass Effect Story Explained: the Trilogy and Andromeda
The whole Mass Effect story in order, one game at a time. Shepard stops Saren, beats the Collectors and leads the galaxy against the Reapers, then Andromeda starts again 600 years later in another galaxy.

Vigil: the Prothean watcher of Ilos
Vigil was a Prothean virtual intelligence left to guard a hidden research facility on Ilos, built around the personality imprints of the Chief Overseer Ksad Ishan. It shut down the cryogenic pods of the people it was made to protect so that twelve might live, and fifty thousand years later it handed Commander Shepard the truth about the Citadel.
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