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"The Doomsday Device" is a Federation mission in Star Trek Online and part of the Klingon War episode.


Mission text
Starfleet believed that the Klingons were testing their new weapons in the Imaga system.
We have information that now leads me to believe that these testing programs are for something much bigger than a new kind of torpedo.
Starfleet Intelligence has recieved a message from someone claiming to serve in Ambassador B'vat's personal force. This source says that the ambassador's research is complete, and that he is planning on using some sort of a doomsday weapon on Federation worlds.
My aide, Lieutenant VanZyl, will join you for this mission. Go with her to the Donia system. B'vat has a small supply base near one of the outer planets. Our source, a man named K'Valk, says that we will find the information we need to stop B'vat there.


A Starfleet ship infiltrates a Klingon base, and confiscates some torpedoes. However, they soon discover that the Klingons have control of the famous Doomsday machine!



B'vatEthan BurgessD'TangK'menK'ValkJorel QuinnTokKyla VanZylunnamed Klingonstargs
Referenced only

Starships and vehicles

IKS AktuhB'vat's planet killerUSS Crazy Horse (Nomad-class) • IKS HoSUSS Laub (Nomad-class) • IKS MelotaIKS Mogh's Revenge (Negh'Var-class) • IKS Qla'zander (Negh'Var-class) • USS Risa (Galaxy X-class) • IKS Targ (B'rel-class) • IKS Tosk (Raptor-class) • IKS Wo'


Donia systemImaga system
Referenced only
Briar PatchSol systemT'Ong Nebula

Races and cultures

Referenced only

States and organizations

FederationHouse of B'vatKlingon Empire

Other references

antiproton beamDominion WarGrishnar cathargh'peng torpedoklin zhaneutroniumTemporal Cold War



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.

External link

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