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Story Arc: Lost Dominion

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Preceded by
Cardassian Struggle
Followed by
Borg Advance
Episode Arc - Cardassian Struggle.png Episode Arc - Borg Advance.png

Faction Dominion.png A conference on Deep Space Nine is cut short when unexpected visitors come through the wormhole...


The Lost Dominion story arc is a chain of cross-faction missions available to all factions. The quest is part of "The Galaxy at Large" side content. It takes place directly after the events of the Cardassian Struggle episode arc.

The recent Borg attack on Defera has revealed a need for forces of the Alpha Quadrant to sit together and discuss their strategy in defending the core worlds, as well as far-away colonies, from a rising Borg threat. Federation, Klingon Empire, Cardassian Union and the Deferi have all sent their representatives to Deep Space Nine.

But the Borg won't be your main problem - a Dominion fleet lost to time has resurfaced and is here to finish the job started in the Dominion War.

List of missions[edit | edit source]

Episode Arc - Lost Dominion.png “Lost Dominion”

Deferi, a warp-capable species from the Alpha Quadrant, have sent out a request for aid. They've reported several attacks on their shipping. Head out there and see what you can do.

Mission cannot be replayed.

Contact: Jorel Quinn / J'mpok / Kererek
Release Date: October 9, 2018
EP - Second Wave.png “Second Wave”

Join the powers of the Alpha Quadrant at Deep Space Nine to plan a defense against the Borg. What will you do when an unexpected guest arrives?
Contact: Commander Mesi Achebe
Release Date: February 11, 2012
EP - Of Bajor.png “Of Bajor”

DS9 has been conqured by the Dominion! Fall back to Bajor and plan the counterattack!
Contact: Commander Mesi Achebe
Release Date: February 11, 2012
EP - Operation Gamma.png “Operation Gamma”

The Gamma Quadrant beckons! Find a friend there who can lead you to the Dominion.
Contact: Commander Mesi Achebe
Release Date: February 25, 2012
EP - Facility 4028.png “Facility 4028”

When you visit the mysterious Federation Holding Facility 4028 to seek aid from an old enemy, you'll find that you aren't the only one that wants her blessing.
Contact: Commander Mesi Achebe
Release Date: March 3, 2012
EP - Boldly They Rode.png “Boldly They Rode”

Brave the vacuum of space and Kar'ukan's forces to save DS9!
Contact: Commander Mesi Achebe
Release Date: March 10, 2012

Notes[edit | edit source]

  • With the release of Season Fifteen: Age of Discovery, the "Lost Dominion" arc (previously called the "Lost Dominion: The 2800" or simply "The 2800") was moved from the "Episodes" tab to the "Available" tab.
  • Currently on console, these missions are only available to players that have already completed them, and can be shared by players that have them to players that do not. Upon completing each mission, they become available in the Mission Journal under the "Incoming Hails" tab, below the section heading "Lost Dominion" Mission Replay.
Mission available Side Content: The Galaxy at Large