The Overview tab.
The Crew Roster.
For lists of duty officers, see the central listing page.- For Duty Officer Assignments, see the Assignments page.
For Duty Officer Assignments, see the Duty officers (doffs) represent the junior officers, enlisted personnel, and civilian crew members of the player's starship. The mechanics of the duty officer system are rather similar to those of many collectible card games, in that officers can be acquired from random booster packs from assignments or the Zen Store. Officers can be sent on missions and slotted for bonuses. They cannot be renamed or upgraded.
The system unlocks once a character reaches Level 11.[1] There are at least 54,587 duty officers available since the system was introduced in Season 5.
Players can make use of duty officers in four ways:
- A player's starship has five slots for duty officers that enhance space operations and five slots for duty officers that enhance ground operations, depending on the officer's specialization.
- Duty officers can be sent out on special missions called assignments, which can reward skill points, bridge officer skill points, energy credits, temporary buffs, items, more duty officers, and experience toward commendations. These assignments can vary in real-time duration between 1 minute to 3 days. By default you can have a maximum of 20 of such assignments running at the same time; Sickbay assignments don't count toward this limit. You can exceed this limit by buying up to three additional assignment slots in your fleet embassy.
- Duty Officers on your ship can build components and will offer assignments – some of these are new and some of these are additional chances to focus your efforts on a specific commendation category (e.g. Science, Engineering, or any other category).
- At the respective factions’ academies, Personnel Officers allow a captain to commission cadres of duty officers, and also to turn in five underperforming duty officers, plus a modest amount of Dilithium, for a random duty officer of the next highest quality. Note: in late 2012, the Dilithium required increased significantly.
Overview[]
Duty officers have the following characteristics:
Faction
Duty Officer faction frame comparison.
- Duty Officers can belong to the Federation, Klingon, or Romulan faction. They are distinguished by the frame color surrounding their avatar image and a small icon in the corner. Over this faction frame is displayed the quality (rarity: Common, uncommon, rare, etc.) of the duty officer. The department icons (Tactical, Operations, Medical, etc) on their dossiers also indicate the officer's faction affiliation.
Just because a species is generally associated with a particular faction does not mean an officer is usable by that side. Always check the dossier for affiliation before buying! You can turn on the option at the bottom of the Exchange window to only show usable items.
- Assignments will reward you with a proper faction duty officer, but if you intend to trade or buy another one, you have to make sure that the duty officer belongs to your faction. There is no warning in game - like with bridge officers - to stop you from buying or trading from the other faction and discover the Duty Officer (DOFF) isn't going to do what you wanted.
- The other faction's duty officers will go into your roster/passengers/brig but they will not be displayed as a slottable Recommendation from the assignment Department Heads. If you received another faction's duty officers they can be traded/mailed/sold using drag and drop from your roster/brig/passenger slots, or dismissed for a small bonus in dilithium and recruitment points.
- The other faction's duty officers CAN, however, be used to supply Starbase projects.
- See how to distinguish faction side on this frame comparison image.
Quality
- This is indicated by the color of the duty officer's name and the border around the portrait, if there is one. Currently, there are duty officers of white, green, blue, purple, dark purple and gold quality. Higher quality duty officers have a higher chance to complete assignments successfully, and will provide better assignment rewards than standard (common) quality officers.
- Only white quality duty officers have a chance of dying while on assignment (note the difficulty of the assignment). Green, blue, and purple quality duty officers cannot die while on assignment, but can sustain injury which will make them unavailable for a period of time (Usually 8 hours) and is likely to place them in sickbay.
Rank
- Duty officers, with the exception of civilians, will have an enlisted or officer rank. Some assignment slots may require duty officers of a particular rank to succeed. Ultra Rare and Epic duty officers will have same rank as Very Rare quality duty officers.
- Tactical/Security: Crewman, Ensign, Lieutenant Junior Grade, Lieutenant
- Engineering/Operations: Crewman, Petty Officer, Chief Petty Officer, Master Chief Petty Officer
- Science/Medical: Crewman, Specialist, Senior Specialist, Senior Chief Specialist
- Klingon Defense Force: Bekk, Warrior, Sergeant, Lieutenant
- Romulan Republic Force: Daise, Uhlan, Sublieutenant, Lieutenant
Department
- Duty officers will be in one of the seven following departments: Tactical, Security, Engineering, Operations, Science, Medical, and Civilian. Some assignment slots require duty officers of a specific department, or the chances of the various outcomes may be modified by placing a duty officer of a specific department in a particular slot.
- There are also 2 more departments that have their own roster separated from the main roster: Passengers (usually colonists) and the Brig. While these duty officers technically fall in the civilian category, they have some differences with it, like in example you will not be able to use them for many assignments that would normally allow any character in them.
Specialization
- This is the duty officer's primary role aboard the starship, such as Conn Officer, Security Officer, Astrometric Officer, etc. This defines what effect the officer has if assigned to a space or ground role. As with department, some assignment slots may require an officer with a specific specialization, or including an officer with a given specialization may modify the chances of the assignment outcome.
R&D School
- See also: list of duty officers by R&D school.
- This is an optional role some duty officers may have, allowing them to be used in crafting of special items unlocked with level 15 in Research and Development schools. Currently available R&D specialties are:
- Aegis • Beam Weapons • Cannon Weapons • Engineering • Ground Equipment • Kits and Modules • Projectile Weapons • Science • Shields
Traits
- Duty officers can have one or more traits. These are only important for assignments. Assignment slots indicate which traits will increase or decrease the chance of the possible outcomes of the assignment.
Active Duty
- Up to 10 duty officers can be placed on Active Duty. Up to 5 can apply their specializations to Space operations, while another 5 can can be used to improve Ground operations. This limit can be exceeded by purchasing 1 additional slot for ground and space through the Fleet Spire, allowing the maximum of 6 for each region. Depending on the specialization, only 1 or up to a maximum of 3 duty officers may be active at the same time.
- Each officer applies their abilities separately.
- "__% chance to" ability probability for activating at least once is shown by this formula: 1-((1-x)^y) with x being the percentage in decimal form and y being the number of same duty officers times the number of uses.
- Duty officers become Bound to Character once they are posted on active duty roster.
Specializations[]
Tactical department[]
| Specialization | Descriptions for each variant |
|---|---|
| Conn Officer |
|
| Energy Weapons Officer |
|
| Ground Warfare Specialist |
|
| Projectile Weapons Officer |
|
| Shield Distribution Officer |
|
| Space Warfare Specialist |
|
| Warfare Master |
|
Security department[]
| Specialization | Descriptions for each variant |
|---|---|
| Armory Officer |
|
| Assault Squad Officer |
|
| Security Officer |
|
Engineering department[]
| Specialization | Descriptions for each variant |
|---|---|
| Consultant |
|
| Damage Control Engineer |
|
| Diagnostic Engineer |
|
| Fabrication Engineer |
|
| Maintenance Engineer |
|
| Matter-Antimatter Specialist |
|
| Systems Engineer |
|
| Technician |
|
| Warp Core Engineer |
|
Operations department[]
| Specialization | Descriptions for each variant |
|---|---|
| Deflector Officer |
|
| Explosives Expert |
|
| Flight Deck Officer |
|
| Hazard System Officer |
|
| Quartermaster |
|
| Sensors Officer |
|
| Tractor Beam Officer |
|
| Transporter Officer |
|
Science department[]
| Specialization | Descriptions for each variant |
|---|---|
| Astrometrics Scientist |
|
| Biologist |
|
| Botanist |
|
| Development Lab Scientist |
|
| Geologist |
|
| Gravimetric Scientist |
|
| Photonic Studies Scientist |
|
| Research Lab Scientist |
|
| Warp Theorist |
|
Medical department[]
| Specialization | Descriptions for each variant |
|---|---|
| Biochemist |
|
| Counselor |
|
| Doctor |
|
| Medic |
|
| Nurse |
|
Civilian department[]
| Specialization | Descriptions for each variant |
|---|---|
| Advisor |
|
| Bartender | ''No duty officer powers'' |
| Chef | ''No duty officer powers'' |
| Colonist | ''No duty officer powers'' |
| Diplomat |
|
| Entertainer |
|
| Miner | ''No duty officer powers'' |
| Prisoner | ''No duty officer powers'' |
| Refugee | ''No duty officer powers'' |
| Trader |
|
Duty Officer Roster[]
Roster size[]
- See also: Duty Officer Roster Slots.
The standard roster size is 100 duty officers, but this can be increased up to a total of 500 through Zen Store purchase options consisting of 25 more slots for 225 
or 100 more slots for 725 .
Obtaining more Duty Officers[]
- See more: Duty officer/Special
Additional Duty Officers can be obtained in various ways and in many map locations:
- All players receive bonus packs at levels 18, 23, 31, and 41.
- Recruitment assignments from the academies (visit representatives and accept the assignment).
Personnel Officer, 
Imperial Personnel Officer or 
Recruitment Console
- 1,000
for General recruitment (awards a duty officer cadre) - Departmental recruitment (awards 2 duty officers from a specific department)
- 1,000
- Andorian Personnel Officer / Tellarite Personnel Officer / Vulcan Personnel Officer
- Gorn Personnel Officer / Nausicaan Personnel Officer / Orion Personnel Officer
- Ranking up commendation categories
- Each rank achieved awards one free duty officer and unlocks the remaining officers in that category for purchase with dilithium (available from Lt. Ferra at Starfleet Academy or Lt. S'stas at Klingon Academy)
- 1,000 for uncommons (Rank 2)
- 6,000 for rares (Rank 3)
- 12,000 for very rares (Rank 4)
- 1,000
- Additionally Holographic Duty Officers may be purchased from the Replicator with energy credits when achieving each rank in the Engineering, Medical, and Military fields:
- 1,000
for common Hologram (Rank 1) - 10,000 for uncommon Hologram (Rank 2)
- 100,000 for rare Hologram (Rank 3)
- 1,000,000 for very rare Hologram (Rank 4)
- 1,000
- Each rank achieved awards one free duty officer and unlocks the remaining officers in that category for purchase with dilithium (available from Lt. Ferra at Starfleet Academy or Lt. S'stas at Klingon Academy)
- Rewards from some duty officer assignments and missions
- See more: Assignments rewarding duty officers
- Reputation system unlocks:
- Reputation: Task Force Omega: 2 Rare and 2 Very Rare Borg duty officers per faction
- Special Items (e.g., from lock boxes et al.)
- Exchange
- Zen Store
- Fleet
- Fleet Embassy offers unique Embassy Romulan duty officers based on Recruitment wing level.
- Fleet Dilithium Mine offers Miner duty officers
- Fleet Spire offers Voth duty officers
- Fleet Research Lab offers Krenim duty officers
- Fleet Station K-13 offers 23rd Century Duty Officers.
- Fleet starbases also offer duty officers, by both rarity and type, for fleet credits:
| Rarity | Any Type | Tactical/Security | Engineering/Operations | Science/Medical |
|---|---|---|---|---|
| Common | 500  (Starbase I) |
750 (Shipyard II) |
750 (Industrial Fabricator II) |
750 (Communications Array II) |
| Uncommon | 5,000 (Starbase II) |
7,500 (Shipyard III) |
7,500 (Industrial Fabricator III) |
7,500 (Communications Array III) |
| Rare | 10,000 (Starbase III) |
15,000 (Shipyard IV) |
15,000 (Industrial Fabricator IV) |
15,000 (Communications Array IV) |
| Very Rare | 20,000 (Starbase IV) |
30,000 (Shipyard V) |
30,000 (Industrial Fabricator V) |
30,000 (Communications Array V) |
Dismissing Duty Officers[]
If you wish to get rid of one or more of duty officers (DOFFs), you can select "dismiss" and get an amount of Dilithium Ore and Recruitment CXP based upon their rarity. Note that certain DOffs like the Emergency Medical Hologram do not return any dilithium or XP upon dismissal. Generally speaking, it isn't as profitable to dismiss a Duty Officer as it is to donate one or more to your fleet projects. At first, fleet projects require common (white) DOFFs, which are removed from your ship's roster and placed on permanent assignment in the fleet structures.
- Dismissing a Common: 1
and 10 Recruitment XP - Dismissing an Uncommon: 10 and 25 Recruitment XP
- Dismissing a Rare: 25 and 100 Recruitment XP
- Dismissing a Very Rare: 50 and 250 Recruitment XP.
Another way to dispose of unwanted duty officers is to exchange either five low quality duty officers for one higher quality officer at the personal officers at the academy, or to exchange one high quality duty officer for three lower quality officers:
(Does not apply to Prisoners, Ultra Rare or Epic duty officers)
- Reassign 5 Common for 1 Uncommon (costs 500 or 600 at race specific vendor): 25 Recruitment XP
- Reassign 5 Uncommon for 1 Rare (costs 2500 or 3000 at race specific vendor): 100 Recruitment XP
- Reassign 5 Rare for 1 Very Rare (costs 5000 or 6000 at race specific vendor): 500 Recruitment XP
- Exchanging an Uncommon for 3 Common: 50 Recruitment XP
- Exchanging a Rare for 3 Uncommon: 150 Recruitment XP
- Exchanging a Very Rare for 3 Rare: 300 Recruitment XP
Players of the Klingon faction additionally have the following assignments to "dismiss" duty officers (other than prisoners/colonists/refugees) for a reward:
“Execute for Incompetence”: 133 Development XP, 5 - “Execute Changeling Spy”: 604 Espionage XP, 500
- “Execute Mutineers”: 169 Development XP, 750
- “Permit Crippled Warrior to Perform the Hegh'bat”: 83 Development XP, 100
Species[]
- See also: List of duty offices for each species.
There are currently 65 different species of duty officers.
Available for all factions
- Acamarian
- Aenar
- Alien
- Andorian
- Bajoran
- Baku
- Benthan
- Benzite
- Betazoid
- Bolian
- Breen
- Bynar
- Caitian
- Cardassian
- Deferi
- Deltan
- El-Aurian
- Ferengi
- Gorn
- Hierarchy
- Hirogen
- Horta
- Human
- Jem'Hadar
- Kazon
- Kentari
- Klingon
- Kobali
- Krenim
- Lethean
- Liberated Borg
- Lukari
- Malon
- Na'kuhl
- Nausicaan
- Ocampan
- Orion
- Photonic
- Reman
- Rigelian
- Risian
- Romulan
- Saurian
- Suliban
- Talaxian
- Tellarite
- Tholian
- Trill
- Vorta
- Voth
- Vulcan
- Xindi-Aquatic
- Xindi-Arboreal
- Xindi-Insectoid
- Xindi-Primate
- Xindi-Reptilian
- Yridian
Federation-aligned only
- Exocomp
- Karemma
- Paradan
- Tosk
Klingon-aligned only
- Dosi
- Ferasan
- Hunters
- Wadi
Personal assignments[]
By choosing to Visit the Bridge (which is an option from the small drop down arrow at the bottom-right of the mini-map) you can walk to other parts of the ship where certain officers will offer a list of specialized assignments in specific categories. Some of these officers also offer unique assignments to acquire consumables (ship batteries, hypos, etc.).
The assignments offered reset every 20 hours and are specific to your ship, so visiting another player's ship will present different assignments.
A small number of assignments are also specific to certain sectors, in particular the exploration clusters, where you will often find additional Colonial assignments.
Ship interior contacts include:
- Bridge (via desk console in ready room)
- Tactical Officer
- Federation Envoy
- Diplomacy assignments
- Marauder
- Marauding assignments
- Engineering deck
- Engineer
- Engineering assignments
- Special assignments to construct space devices
- Operations Officer
- Development and Colonial assignments
- Science Officer
- Science and Exploration assignments
- Special assignments to construct ground devices
- Engineer
- Crew deck
- Doctor
- Medical assignments
- Special assignments to construct hypos and regenerators
- Bartender
- Extreme Bartending chain assignments
- Special assignments to obtain a single drink item
- Discounted replicator menu for drink items
- Chef
- Culinary Credentials chain assignments
- Discounted replicator menu for food items
- Counselor
- Schedule morning, afternoon, or evening therapy sessions
- Brig Officer
- Schedule morning, afternoon, or evening interrogation sessions
- Doctor
References[]
Character development in Star Trek Online
|
|---|
 Bridge Officer abilities •  Captain Specializations • Career paths Active Duty Officer Slots • Kits • Skills • Starship types • Traits
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