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Romulan Republic D'deridex Battlecruiser
IRW Khnial 1.png
Critter Rank 3 icon.png
This page is for the NPC ship. For the playable starship, see D'deridex class.

The D'deridex Battlecruiser is a large battleship used by the various Romulan and Reman factions. It is well-armed and has many capabilities ranging from tractor beams, subsystem targeting to sensor jamming. They usually travel alone, but are sometimes accompanied by either Mogai or T'varo Warbirds. Like other battleships, the D'deridex is heavily armed and well-shielded but lacks in maneuverability and speed.


Romulan Star Empire/Tal Shiar[]



Romulan Republic/Reman Resistance[]




Hull Strength[]

Level Difficulty
Standard Advanced Elite
17 18,069
18 18,906
22 23,779
28 29,771
31 34,051
32 35,144
33 37,375
36 39,666
39 43,215
50 56,444 76,441 96,495

Missions involved[]


The infamous attack that makes use of a Tractor Beam and three Heavy Plasma Torpedoes.

At higher levels, the D'deridex is formidable even for a battleship. Often they will snare enemy vessels with their tractor beam and immediately follow with a trio of Heavy Plasma Torpedoes that can destroy even the toughest ships in a matter of seconds. This tactic has made the D'deridex Battleship infamous among the Star Trek Online community.

They are not invincible, however. One way to evade the aforementioned attack is to stay out of range of their tractor beam (5 kilometers). If you do get caught in the beam, you can get away by polarizing your hull, employing Jam Sensors or Attack Pattern Omega, or hitting the D'deridex with a Photonic Shockwave. You can also neutralize incoming Heavy Torpedoes with Cannon: Scatter Volley, Beam Array: Fire at Will, Torpedo: Spread, and (if the torpedoes are coming from behind you) Eject Warp Plasma, among others. Should one or more of these torpedoes impact your ship, using Hazard Emitters will promptly extinguish the resulting plasma fires and begin healing at least some of the damage dealt by the attack.

Vessels of the class[]

Faction Image Named Vessels
Faction Romulan Star Empire.png
IRW Khnial 1.png I.R.W. Calaf
I.R.W. Haakona
I.R.W. Intrakhu
I.R.W. Ishae
I.R.W. Khnial
I.R.W. Rea
I.R.W. Sithesh
I.R.W. Solius
I.R.W. Xatos

Faction Romulan Republic.png
STOTemanna.JPG R.R.W. Temanna


  • The appearance of the D'deridex was redone for the launch of Legacy of Romulus on May 21, 2013.
  • Using Romulan Distress Call - D'deridex Battleship will summon a D'deridex Battlecruiser to assist the player in battle.
  • Players can mimic the appearance of the Reman D'deridex on the playable D'deridex Warbird Battle Cruiser by using the Reman Prototype Space Set or selecting the type 1 Reman hull material in the ship customization editor.
  • Following the "Victory is Life" expansion, an unnamed D'deridex warbird can be seen parked near Deep Space 9.
  • The appearance of the D'deridex was redone again on July 27, 2021, bringing it in line with the D'Deridex model seen in Star Trek: The Next Generation and Star Trek: Deep Space Nine.


External links[]

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Romulan Star Empire (25th century)
Faction Romulan Star Empire.png
Details Romulan Star Empire (25th century)Romulan • Reman • HirogenRator III • Gasko StationTal ShiarRomulan History
Ground Forces Romulan Analyst • Technician • Recruit (Romulan) • Uhlan • Sublieutenant Medic • Centurion • Centurion Engineer • Centurion Medic • Centurion Scientist • Subcommander • Subcommander Engineer • Subcommander Scientist • Commander • Romulan Captain
Starships Romulan Shuttle • Scorpion Fighter • T'varo Light Warbird • Mogai Heavy Warbird • D'deridex Battlecruiser • Scimitar Dreadnought
NPCs Arranhu • Charva • Hakeev • Janek • Khaiel N'Vek • Khiana • Ruul • Sela • Taris • Tarsen
NPC starships I.R.W. Aethra • I.R.W. Areinnye • I.R.W. Esemar • I.R.W. Falcata • I.R.W. Khnial • I.R.W. Leahval • I.R.W. Rea • Sela's Armed Freighter • I.R.W. Sithesh
v · d · e
Reman Resistance
Faction Reman.png
Details Reman ResistanceRemanThe VaultCrateris • Remus • New Romulus • Vauthil StationReman History
Ground Forces Guard • Shadow Guard • Guard Elite • Shadow Guard Elite • Guard Commander • Shadow Guard Commander • Guard Captain
Starships Scorpion Fighter • T'varo Light Warbird • Dhelan Warbird • Mogai Heavy Warbird • D'deridex Battlecruiser • Haakona Advanced Warbird • Scimitar Dreadnought
NPCs Khiy • Obisek • Rashna • Slamek • Vrimek • Xionel • Zden
NPC starships I.R.W. Decimus • R.R.W. Llaisnen • Reman Scout • Rerik • Zdenia
v · d · e
Romulan Republic
Faction Romulan Republic.png
Details Romulan RepublicRomulan • RemanNew RomulusNew Romulus CommandRomulan FlotillaThe VaultVauthil StationRomulan History
Ground Forces Uhlan • Guard • Shadow Guard • Sublieutenant • Sublieutenant Engineer • Guard Elite • Shadow Guard Elite • Subcommander • Guard Commander • Shadow Guard Commander • Commander • Guard Captain
Starships Romulan Shuttle • Scorpion Fighter • T'varo Light Warbird • Dhelan Warbird • Mogai Heavy Warbird • D'deridex Battlecruiser • Ha'apax Advanced Warbird • Falchion Dreadnought Warbird • Tulwar Dreadnought Warbird
NPCs A'dranna t’Kerhav • Avran • D'Tan • Kaol • Kererek • Mena • Mivek • Nadel • Obisek • Romulan Ambassador • Tal'Mera • Rai Sahen • Temer • Tiaru Jarok • Tovan Khev
NPC starships R.R.W. Deihu • R.R.W. D'serek • R.R.W. Hasta • R.R.W. Hyperian • R.R.W. Lleiset • R.R.W. M'sarr • Rerik • R.R.W. Temanna • Zdenia