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The Reapers of Mass Effect Explained

Apr 26, 2025

Reaper - Mass Effect

Overview

  • The Reapers are a highly-advanced race of synthetic-organic starships.
  • They hibernate in dark space, returning to the galaxy every 50,000 years.
  • Their purpose is to harvest organic life to bring "order to chaos."
  • Constructed the Citadel and mass relay network to guide technological development.

Design

  • Resemble cuttlefish or squid with numerous tentacle-like legs.
  • Sizes range from 160 meters to over 2 kilometers.
  • Core design based on harvested species' image.

Subtypes

  • Harbinger: First and largest Reaper, unique subtype.
  • Capital Ship: 2-km long, main weapon: magnetohydrodynamic cannon.
  • Troop Transport & Processor: Used for transporting husks and DNA harvesting.
  • Destroyer: Smaller, powerful weapons, escorts capital ships.

Indoctrination

  • Reapers can mentally manipulate organics into believing and serving them.
  • Often permanent, driving subjects mad or making them loyal slaves.

Technology

  • Possess powerful weapons and defenses, including immense shields.
  • Capable of faster-than-light travel beyond current civilizations' capabilities.
  • Use computer viruses and nanotechnology for control and transformation of organics.

History

  • Reapers have existed for over a billion years.
  • Created by the Intelligence to prevent conflicts between organics and synthetics.
  • Prothean Counterattack: Altered Citadel signal to delay Reaper invasion.

The Vanguard

  • Sovereign: First Reaper seen post-Protheans, intended to initiate another harvest.
  • Failed due to altered signals, destroyed by Commander Shepard.

The Reapers and the Collectors

  • Collectors, former Protheans, abduct humans to create a human-modeled Reaper.
  • Harbinger controls Collectors, efforts thwarted by Shepard.

Return to the Galaxy

  • Reapers return in 2186 CE, begin harvesting galactic civilizations.
  • Invasion starts in batarian space, quickly spreads.

Leviathan

  • Some Leviathans survived, contribute knowledge and aid to fight Reapers.

Crucible and Catalyst

  • The Crucible, a weapon to destroy Reapers, requires the Citadel as a Catalyst.
  • Shepard must choose between destroying, controlling, or synthesizing life with Reapers.

Culture

  • Cycle of Extinction: Patterns of civilization evolution lead to inevitable extinction cycles.
  • Harvesting: Reapers process organics into genetic "paste" for new Reapers.

Notable Reapers

  • Harbinger, Sovereign, Leviathan of Dis, notable Reapers with significant roles.

Trivia

  • Reapers are inspired by Lovecraftian horror and similar in nature to the Star Trek Borg.

Cut Content

  • Individual Reapers initially intended to reflect species they were harvested from.

References

  • Includes various references from Mass Effect games and developer insights.