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For other uses, see Vault.

The Vault is a mission in Star Trek Online, primarily taking place in the Romulan facility of the same name. It is the first mission of the "Cloaked Intentions" featured episode series and is available to characters of all factions.

The player must infiltrate the Vault, where the Reman Resistance under Obisek are manufacturing thalaron weapons for their war against the Tal Shiar and the Romulan Star Empire.

The player is required to use a small craft for this mission rather than their starship.



The Romulans had a base known as the Vault that they used for research into Borg technology.

This facility was abandoned in the chaos after the destruction of the Romulan homeworld, but intelligence suggests that the work there was far enough along that it was used to retrofit Nero's ship before it disappeared along with Ambassador Spock's vessel in the Hobus system.

Long-range sensors have detected energy spikes in the Haakona system, and Starfleet Intelligence believes that someone is bringing the Vault back online. We need to know who and, more importantly, we need to know if there is still Borg technology or restricted weaponry on that base.

I need you to proceed immediately to the Haakona system and investigate the Vault. Engage if you must, but I would prefer if you could gather the information we need without conflict.

Klingon Empire

The Romulans researched Borg technology at a base known as the Vault. The Vault was abandoned in the chaos after the destruction of the Romulan homeworld. We sent a group of scout ships into the region a few years later, but they were lost in an ambush by an unknown vessel. Since then we have been monitoring the region for signs of activity.

Long-range sensors have detected energy spikes in the Haakona system, and Klingon Intelligence believes that someone is bringing the Vault back online. I want you to find out who. I also want to know if there is any Borg technology or restricted weaponry on that base.

Good luck – and good hunting.

Romulan Republic (Federation-aligned)

Before the destruction of Romulus, the Imperial Navy and the Tal Shiar operated a base known as the Vault. It was a massive starbase in a remote system, designed to facilitate illegal research and construction projects on a tremendous scale. I am sure, however, that a breach of interstellar accords is no surprise to you.

Research at the Vault led to the use of Borg technology in various Romulan ship refits. While the facility was abandoned in the wake of the Hobus supernova, long-rang sensor scans have reported activity and ship traffic in the Haakona system, where the Vault is located.

Starfleet wishes to be certain that nobody is able to use the Vault to acquire Borg technology or Restricted weapons. Command has recommended that you, as a former subject of the Star Empire, may have an advantage in entering the Vault by subterfuge instead of force.

I need you to proceed immediately to the Haakona system and investigate the Vault. Engage if you must, but I would prefer it if you could gather the information we need without conflict.


Intelligence reports indicate renewed activity at a top-secret Romulan research facility that was thought to be abandoned. The player is ordered to conduct a covert investigation using a shuttle. Immediately on arrival at the Haakona system it becomes clear that the facility is no longer unoccupied. Though the massive station is too large to cloak, there is no telling how large a force is garrisoned there, and so the player finds a way to bypass the tachyon detection grid to enter the station undetected.

Inside, the player finds the sparse remnants of the once mighty Romulan Empire's secret endeavors. The station's still active power and security systems slow the player down as they move deeper into the station, though the Romulan military presence is mysteriously absent. The player encounters some interesting activity, including a salvaged Borg sphere, but the source of the anomalous sensor readings is found in the final chamber; a massive thalaron generator.

The player is confronted by a Reman captain identifying himself as Obisek. Obisek explains that a rift has opened in the Romulan Star Empire between the Romulans and Remans since the fall of Praetor Shinzon and the destruction of the Hobus star. He goes on to explain that his resistance movement requires weapons to liberate the Reman people, and that he has no qualms in resorting to barbarism to save his race from subjugation. Obisek suspects the player of acting as a spy on behalf of Empress Sela, and with regret informs the player that he cannot allow anyone to interfere with his agenda.

The player's shuttle is attacked by several wings of Reman Scorpion-class fighters as it makes its escape, as well as some larger vessels from Obisek's fleet. On leaving the Vault the player finds that the cavalry has already been dispatched to deal with the Reman vessels in the system. Due to the environmental effects of the micro-nebula surrounding the Vault, the allied vessel (either the USS Lhasa or IKS Azetbur, depending on faction) asks the player's help in fending off fighters and heavy torpedos.

The allied ship retreats at high warp to draw the Remans away to allow the player's shuttle to escape. The whereabouts of Obisek or the Reman resistance are left unknown, and the stage is set for what could descend into civil war within the Empire.



Kyle DeSotoObisekT'NaeTemekVishka
Referenced only

Races and cultures


States and organizations

Klingon Defense ForceKlingon EmpireReman ResistanceRomulan RepublicRomulan Republican ForceStarfleetUnited Federation of Planets
Referenced only
Borg CollectiveRomulan Star EmpireRomulan Star NavyTal Shiar

Starships and vehicles

Borg sphereD'deridex-class warbirdIKS Azetbur (Negh'Var-class) • Klingon bird-of-preyMogai-class warbirdScorpion-class fighterStarbase 39-SierraT'varo-class warbirdUSS Lhasa (Galaxy-class)


Haakona systemStarbase 39-SierraThe Vault
Referenced only
Hobus system

Technology and weapons

subspace radio satellitetachyon detection gridthalaron generator

Ranks and titles

admirallieutenant commander



Federation episodes in Star Trek Online
Tutorial (DSC) Graduation DayRoutine ManeuversTrial by FireThe Shadow KnowsChildren of WarReporting In
Tutorial (TOS) I Sing of ArmsSearch and RescueBull by the HornsDislodging KlingonsThe Taurean AffairEarthward Bound
Tutorial Graduation DayTraining CruiseField PromotionsCommunication BreakdownAssimilation of the Innocent UFP emblem image. Seal of the Federation Starfleet
Agents of Yesterday Explore Earth SpacedockIn the Shadow of CestusPainful OmensReturn to BabelTangled WebsThe Battle of Caleb IV
(Tour of Duty) (Prelude to a Crisis) • (Khitomer Crisis) • (The Price of Liberty) • (Assimilation) • (Gather Equipment) • (Line in the Sand) • Welcome to Earth Spacedock • (Skills Trainer) • (New Orders?)
Klingon War Welcome to Earth SpacedockDiplomatic OrdersStranded In SpaceResearcher RescueSecret OrdersThe Doomsday DeviceThe Galaxy at Large • (Hide and Seek) • (Stop the Signal) • (The Kuvah'Magh) • (War is Good for Business) • (Treasure Trading Station) • (Task Force Hippocrates) • (The Ultimate Klingon) • (City on the Edge of Never) • (Past Imperfect)
Romulan Mystery Heading OutEmpress SelaDesperate MeasuresShadow PlayTaris • (Under the Cover of Night) • (Minefield) • (Divide et Impera) • (Saturday's Child) • (Preemptive Strike) • (Hunting the Hunters) • (Project Nightingale) • (By Any Means) • (Ground Zero) • (Ghost Ship) • (Friend of My Enemy) • (Trapped) • (S'harien's Swords)
Missions in parentheses are no longer available as of the current version of Star Trek Online.
Klingon Empire episodes in Star Trek Online
Tutorial End of WatchRed Alert!Intruder Alert!Challenge for Command!Your New CommandJourney to Qo'noS • (First City) Emblem of the Klingon Empire
Empire Duties of CommandThe Hunt is OnSpace ChaseManhuntFriend or Foe
Warzone Bringing Down the HouseThe House Always Wins • (Test of Mettle) • (Second Star to the Right, Straight on 'til Morning) • (Keep Your Enemies Closer)
Vigilance Mars, the Bringer of WarAlpha • (A House Pursued) • (House on Fire)
Fek'Ihri Return Blood of the EmpireDestinyAfterlife • (The Gates of Gre'thor)
Missions in parentheses are no longer available as of the current version of Star Trek Online.
Romulan Republic episodes in Star Trek Online
Tutorial A Day on the FarmA Day in the SunVirinat, InvadedFlight from Virinat Emblem of the Romulan Republic.
From the Ashes Explore the FlotillaThe HelixCrossroads at CraterisGasko BluesThe Search for New RomulusTurning PointNeutral No More
Allies The Price of NeutralityMemory LaneBigger PictureSmash and GrabTradecraft
In Shadows An Inside JobEnemy ActionSleepersCloak and DaggerRevelationMind GameTemporal Ambassador
Wasteland Secrets of NimbusThe Lost City of ParadiseBlind Men Tell All TalesThe UndyingA Fistful of GornInstallation 18
Vengeance Voice of the VoicelessAbductedSmall PackagesLast StandThe Best DefenseTurnaboutDevil's Choice
Freedom Toward FreedomThe VaultMine EnemyFrozenColiseumCutting the CordDarkness Before the Dawn
Spectres SpectresSkirmishSpin the WheelWhat Lies BeneathEverything Old is NewNight of the Comet
Cardassian Struggle Venture into Deep SpaceBadlandsRapierForging BondsThe Long NightCrack in the MirrorSeeds of DissentThe New LinkSecond WaveOf BajorOperation GammaFacility 4028Boldly They Rode

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