Omega

Fictional record. This page describes a mine from a fictional setting, not a real place. Information is based on the cited canon, with adaptations and interpretation distinguished where necessary. It is kept separate from the real MineArchive corpus — see Fictional.

Setting	Mass Effect (BioWare)
Location	A space station built in and on a mined-out asteroid in the Sahrabarik system of the Omega Nebula, in the lawless Terminus Systems beyond Citadel space.
Commodity	Element Zero
Type	Element zero (asteroid)
Worked	Not dated. The asteroid's heavy-metal core was mined out thousands of years before the games, and the hollowed husk became the station. – Not closed. Element zero remains the station's major export, with processing plants and mines still worked in 2185 and 2186.
Extent	An asteroid 44.7 kilometres long, mined until almost completely hollow, with a population of 7.8 million living on and in it.

Overview

The Terminus Systems' outlaw station, built in the hollowed husk of an asteroid whose heavy-metal core was mined out long ago, and still exporting element zero from its mines and processing plants under the rule of Aria T'Loak.

History

Omega began as a metallic asteroid. Its heavy-metal-rich core was mined until the rock was almost hollow, and the metal paid for the first buildings; over thousands of years the workings became a station, lying idle for centuries at a time and then reoccupied by each new generation of outlaws, until the structures covered every exposed inch of the surface. The station has no government and never has had: a turian ruled it once, a krogan crime lord killed him and ate his heart, and around the 1980s the asari Aria T'Loak killed the krogan in single combat and has run it since. By 2185 its population is 7.8 million, of every species including those not welcome in Citadel space, and its major export is element zero.

In the games Shepard comes to Omega in 2185 to recruit Mordin Solus and the vigilante Archangel, while a plague ravages the station, and in the 2012 Omega expansion to Mass Effect 3 helps Aria retake it from Cerberus, which has occupied it; among the objectives is a Cerberus-controlled reactor in the Element Zero mines whose shutdown releases the station's imprisoned citizens. The tie-in novel Redemption sets a fight over Shepard's body in an old mining processing plant in the lower levels.

Workings

The original asteroid's core was mined out to a hollow shell; the station's eezo processing plants and mines continue below the inhabited levels, with an old processing plant in the lower levels and the Element Zero mines where Cerberus placed its reactor.

Closure

Not closed.

What became of it

A working station and export mine under Aria T'Loak, retaken from Cerberus in 2186 in the Omega expansion.

Canon & adaptations

The in-game codex gives Omega's statistics; the Kotaku interview the wiki cites for element zero as the major export is a developer statement rather than in-game text. The asari, salarian, turian and krogan names for the place, from the heart of evil to the land of opportunity, are the setting's own commentary on it.

Recorded claims

Each claim is marked with its basis — explicit canon, MineArchive inference, adaptation only, or fandom interpretation — and attached to the source(s) below. Where tellings disagree, both are kept.

Omega is a station built in the mined-out husk of a metallic asteroid in the Terminus Systems, whose heavy-metal core was mined until the rock was almost hollow. (explicit canon) ¹
As of 2185 the station's population is 7.8 million and its major export is element zero. (explicit canon) ¹
In Mass Effect 3: Omega, Shepard and Aria disable a Cerberus-controlled reactor in the Element Zero mines to release the station's imprisoned citizens. (MineArchive inference) ²
Aria T'Loak took Omega around the 1980s by killing its krogan ruler in single combat and has run it since. (explicit canon) ¹

Sources

(primary canon) Omega — Mass Effect Wiki — Mass Effect Wiki (Fandom), reproducing the games' codex text; read through the MediaWiki API
(interpretation) Mass Effect 3: Omega — Wikipedia — Wikipedia
(interpretation) Mass Effect — Wikipedia — Wikipedia

Record created: 16 October 2026 · Last researched: 16 October 2026