For canon information, see the Mass Effect wiki page for Omega. This page is for CDN members' non-canon additions.
Omega is described as "the Terminus Systems' dark, twisted counterpart to the Citadel." Built in the mined-out husk of a metallic asteroid, Omega has been a haven for criminals, terrorists, and malcontents for thousands of years. At times the station has lain idle and abandoned for centuries, only to be reactivated by a new group of outlaws seeking a fresh start.
Today, Omega is a major hub of narcotics, weapons, and eezo trafficking without even a pretense of civilian government or military control. Only mercenary groups have been able to instill a limited order; the most ruthless is an asari syndicate run by the notorious Aria T'Loak.
Level 42 Docks
The level 42 docking ledge has been recently taken over by the vigilante-mercenary unit AEGIS and is used as their semi-permenant base of operations on Omega. Their starship, the Judgement's Herald is found berthed here when not carrying AEGIS personnel on missions around the Terminus Systems and the area surrounding the docks has become known as unofficial AEGIS territory and is rigorously defended by the members of the mercenary unit against any troublemakers and malcontents.
Easy on the Eezo
Located on level 43, Easy on the Eezo is a long-running bar catering to Omega locals and visitors alike. It is often frequented by fans of Turcore, as the music is often played there. Previously owned by a quarian, the current manager of EotE is an elcor named Zoren who is quick to settle any disputes that occur within his bar.
Only a few blocks away from the legendary nightclub Afterlife, the bar known as The Lounge is a quiet and more relaxed night spot not far from the upper-level docks. Popular with ship crews and people looking for somewhere to sit and talk in private, the bar features a number of booths fitted with privacy screens and an unspoken rule of 'no raised voices'.
Gha'rotha bar and grill
Located in Tolyiri, the Gha'rotha is a tradiational batarian restaraunt and watering hole.
End of the Line
A typical Omega nightclub, End of the Line is dim, noisy, crowded, and extremely violent. Only drinks are served, stabbings and even murders are common and it is a common haunt for criminals. Due to its dangerous reputation, the club is often used for underworld deals.
FUD is a greasy little restaurant near the Omega markets that has a reputation for being one of the most neutral places on the station. The front room is a large open space filled with low benches that are usually packed with citizens too poor or lazy to eat elsewhere, while the back room is frequently filled with gamblers, dealers of one kind or another, or people who wish to conduct business in private somewhere safe.
A restaurant owned by Murtag Kirok which serves a variety of krogan and human barbeque food, as well as a few dextro dishes for turians and quarians.
A luxury, high-prestige brothel owned by Madam Turquoise. It is located in the Bones district and is the oldest brothel in all Omega. As the owner would say, "the prices are high but well worth the quality of the services". All the sex workers of the Athame's Roses are Asari. Apart from the obvious main purpose of the brothel, it also has a bar and two different lounges for casual discussion, and a stripper lounge as well.
Many visitors find the notion of a banking centre on Omega baffling, but Anabraxi thrives under Aria's protection. The (relatively) independent banks of the arcology offer every service under the sun, from escrow accounts to stock brokering and pension funds. Given Anabraxi's relative wealth - coupled with its position as a cornerstone of Aria's empire - the arcology wears all the trappings of power, from drone-cleaned streets to a proliferation of heavily-armed guards enforcing Aria's peace.
Anabraxi's shopping and restaurant districts are very highly-regarded among Omega's glitterati.
A primarily residential arcology on the inside edge of Eclipse territory, The Bones boasts a lively clubbing scene fuelled by an influx of Illium-grade party drugs. Given the asari-oriented nature of the area, coupled with the relative security of being firmly within Eclipse holdings, The Bones is home to several of Omega's more up-market traders and bazaars.
Corpseside, Upper and Lower
The twin arcologies of Upper and Lower Corpseside were once one of the station's largest eezo-processing facilities - a gargantuan complex the size of an overlarge cruiser, capable of refining more than two hundred thousand boxes of eezo every three cycles.
This record-holding production boom lasted until 2033, when unknown saboteurs detonated the refinery's central processor. The resulting explosion severed the structure in two and the complete loss of life earned it the new name of Corpseside.
Today, both Upper and Lower Corpseside have been re-sealed and repurposed by the station's inhabitants. Lower Corpseside is a bustling industrial zone, one of Eclipse's primary eezo refineries; while Upper Corpeside has been over-run by vorcha.
Darkly Reflecting Beacon
One of Omega's few hanar arcologies, Darkly Reflecting Beacon was the site of a lively hanar-batarian trading market as well as being home to a multitude of extremist Enkindler cults shunned by the Illuminated Primacy . The arcology was entirely depopulated during the Cerberus/Adjutant invasion of Omega, when Major Nassa D'Veyra ordered its contents vented through the waterlocks in order to hinder Cerberus forces.
Today, the arcology is one of the few dry-land examples of hanar architecture and is enjoying a minor tourist boom.
Formerly a turian-majority holding under Eclipse's protection, the Dessanese population has recovered from the invasion with remarkable turian efficiency. Dessan is currently a neutral area under the rule of a miniature Hierarchy - the peace is (shakily) enforced by the entirety of the very well-armed population. Non-krogan outsiders are more than welcome provided they pay the entry and exit fees and don't cause any trouble; krogan approaching the area are shot on sight.
One of the station's few elcor -majority areas, Little Thunawaruno is essentially a series of interlocking park-bubbles. The artificial gravity is fixed at Dekuunan normal, rendering it uninhabitable to anyone but the elcor. Little Thunawaruno, while considered thuggish and unruly by elcor standards, remains highly prized for its sugar pears.
An area with roughly equal population split of turians and humans, with minor presences of other races, it is named for the human Arabic word for a place of learning. Medrese is known for it's inter-species Islamic population and the largest Mosque on Omega, as well as bustling markets and community cultural events. The rise in popularity of iter-species branches of Islam (often called Neo-Islam) makes the district popular for scholars and religious pilgrims.
A neutral district protected by it's own guards, during the Reaper War Medese was targeted by Cerberus to be segregated by force, leading to high-casualty battles and extreme rebel resistence; Cerberus failed to ever gain control of the district.
Unlike its predecessor, New Doma has the advantage of location, as opposed to the enforcement of a single Spectre. Situated right in between the Dessan, Medrese, and Remate Districts, with the Anabraxi District right above it, New Doma is surrounded from all sides but below by buffer zones, making it one of the safer places on Omega to work and live due to its relative neutrality, as well as the fact that it's such a good location for business on Omega that any attack from a faction would result in reprisals from other factions. These conditions allow New Doma to be the home to the closet thing Omega has to a middle class, due to its "downtown" feel of being a mix of commercial and residential. The district is protected by the New Doma Police Directorate.
It was recently the home of Mallata's, a diner proclaiming itself to have the most decently-cooked meal on Omega for the most decent price, until it was destroyed in an altercation with Blood Pack members.
Located beneath New Doma, Old Doma used to be one of the safer places on Omega, thanks to the efforts of a single vigilante asari Spectre whose name has been lost to history, but has made her mark upon the station as the "Shadow of Doma". However, the death of the Spectre of old age finally resulted in a surge of organized crime overnight, and the subsequent gang warfare ripped through the district like a tidal wave, as if tensions had just been building underneath the surface, waiting for the Spectre to finally croak. Currently, Old Doma is one of the locations of the Blood Pack civil war.
A reasonably central arcology, Perdido Street can be considered something of a transport hub, with several major residential, political and industrial centres well within an hour's skycar drive from the arcology's public hangars. Perdido Street sees a very high daily population turnover, making it a perfect spot for a secret rendezvous in one of the many fast food cafés or hourly-rental rooms.
Remate was a relatively recent Eclipse protectorate, stolen from a salarian gangster by Major Nassa D'Veyra, Everett Maliszewski and Elara T'Meyra. The salarian-majority holding was one of the key fallback positions of the Omega Invasion, but was rendered impassable by the profligate use of chemical weaponry.
Today, every known door and passageway to Remate bears plague and quarantine warnings. The weapons used remain toxic even through NBC gear, but should lose their potency within another year or two. Until then, the arcology remains a ghost town.
Also known as "little Khar'Shan ", Tolyiri is home to a sizeable batarian population.
Vreghul district is one of the lower levels of Omega, largely given over to an old industrial spacedock and the associated warehouses. Dark, dirty and badly maintained, it is little different to the other lower regions of Omega, although slightly less inhabited than other areas, being given over mostly to cargo handling and storage. Many smugglers and slavers operate out of Vreghul, due to the local spacedock and large, empty warehouses.
Often compared to the Citadel's Foundations, the Warrens is the informal name given to the network of sewage and maintenance tunnels linking several of the station's largest arcologies. Home to beggars, vorcha, murderers and worse, the Warrens are a labyrinth of interweaving tunnels and corridors in which the unwary can easily become lost. Even patrols from the Big Three only enter in force and with weapons up.