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This article may contain outdated information that is inaccurate for the current version AT-243285. It was last updated for AU-219784.

Duplicants are the tiny, frustrating, but also endearing clones that the player manages in Oxygen Not Included. Each is generated or "printed" to be unique and has specific needs and vitals that must be fulfilled so he or she can survive. A new game begins with a selection dialog where the player has to select three randomly generated duplicants (or dupes). As the game progresses, the player may chose to add one of 3 new randomly generated duplicants every 3 Cycles. Though each set of 3 is new, a new set of 3 will not be generated until the player selects one to print or dismisses all 3.

Duplicant selection[edit | edit source]

The Duplicant selection dialog as it appears during the game.

At the start of the game the attributes of the three choices may be shuffled. In that first selection you have to make sure that all duplicants have acceptable combinations of attributes and positive and negative traits. When you have reached an acceptable selection you may rename any duplicant as desired and then start the game.

In the selection dialog that appears every 3 cycles you can not shuffle the attributes of these three possible duplicants. You can either pick one or reject the entire selection. If your Colony can't handle another duplicant right now you can also ignore the selection dialog entirely. Until you either select a new duplicant or reject the selection the 3 cylce timer will be paused.

Duplicants will spawn at the Printing Pod and then immediately pick up a job if there is one available.

Duplicant properties[edit | edit source]

Each duplicant has a number of properties and conditions such as strength or health.

Attributes[edit | edit source]

Each duplicant has 10 different attributes that can be leveled up by experience. They define what jobs any duplicant may perform and how effective they are doing it. From the start each duplicant usually has some attributes with a starting bonus sometimes influenced by their traits. Sometimes a negative trait may cause a duplicant to be unable to perform certain jobs alltogether.

The attribute with the highest level defines the duplicants profession.

Most attributes can be trained, and the remaining will probably become trainable in future updates. The maximum level a skill can be trained to is 25, but traits that modify skills apply after that.

The following attributes are available:

Name Description Bonus per level Trained by
Athletics Duplicant's movement speed +10% (speed) Walking or running in a Manual Generator
Cooking How quickly a duplicant cooks food +10% (speed) Cooking Food
Digging Mining speed +25% (speed) Digging, Mopping
Learning How quickly a duplicant conducts research and gains skills +40% (research speed) / +10% (skill leveling) Doing research
Strength Carrying capacity and combat ability +2.5% (mass carried) Cannot be trained yet
Construction Building speed +25% (speed) Constructing and Deconstructing buildings
Creativity The speed and finesse with which a duplicant creates artwork +10% (speed) Painting and sculpting
Immunity Disease susceptibility and recovery time +1% (regeneration per cycle) Cannot be trained yet
Medicine Ability to heal others +20% (speed) Healing others
Tinkering How adeptly a duplicant uses machines +10% (speed) Operating machines

Traits[edit | edit source]

Traits give bonuses or maluses to duplicants attributes. Negative traits may also make it impossible for a duplicant to perform certain jobs.

Positive traits[edit | edit source]

Name Description Skill Effect Disabled Jobs Miscellaneous Effects
Twinkletoes "This Duplicant is light as a feather on their feet" +7 Athletics
Buff "This Duplicant has muscles on their muscles" +5 Strength
Mole Hands "They're great for tunneling, but finding gloves is a nightmare" +5 Digging
Grease Monkey "This Duplicant likes to throw a wrench into the colony's plans...in a good way" +5 Tinkering
Quick Learner "This Duplcant's sharp as a tack and learns new skills with amazing speed" +5 Learning
Interior Decorator "'Move it a little to the left...'" +5 Creativity +5 Decor Expectation
Caregiver "This Duplicant has good bedside manner and a healing touch" +5 Medicine
Early Bird "This Duplicant wakes up feeling fresh and efficient!" +2 All Skills Only active for the first 100s of the day.
Night Owl "This Duplicant does their best work when they ought to be sleeping" +3 All Skills Only active at night (must use Red Alert)
Uncultured "This Duplicant has simply no appreciation for the arts" Art -20 Decor Expectation
Diver's Lungs "This Duplicant could have been a talented opera singer in another life" -25 g/s Oxygen Consumption Rate (-25%)
Naturally Robust "This Duplicant's hardy immune system repels most common illnesses" 25% less likely to get infected
Iron Gut "This Duplicant can eat just about anything without getting sick" Immune to diarrhea from Mush Bars
Amphibious "This Duplicant moves as quickly underwater as they do on land" Same walking speed in liquid as on solids
Germ Resistant "This Duplicant's immune system bounces back faster than most" +4%/Cycle

Negative traits[edit | edit source]

Name Description Skill Effect Disabled Jobs Miscellaneous Effects
Anemic "This Duplicant has trouble keeping up with others" -5 Athletics
Noodle Arms "This Duplicate's arms have all the tensile strength of an overcooked linguine" -3 Strength
Slow Learner "This Duplicant's a little slow on the uptake, but gosh do they try" -3 Learning
Yokel "This Duplicant isn't the brightest star in the solar system" Research
Pacifist "This Duplicant abhors violence" Combat
Gastrophobia "This Duplicant has a deep-seated distrust of the culinary arts" Cook
Squeamish "This Duplicant is of delicate disposition and cannot tend to the sick" Aid
Irritable Bowel "This Duplicant needs a little extra time to 'do their business' " -50% Toilet Speed
Small Bladder "This Duplicant has a tiny, pea-sized bladder. Adorable!" Doubled bladder fill speed
Biohazard "All the vitamin C in space can't stop this Duplicant from getting sick" 25% more likely to get infected
Bottomless Stomach "This Duplicant might actually be several black holes in a trench coat" +500 kcal needed per day
Mouth Breather "This Duplicant sucks up way more than their fair share of Oxygen" +100 g/s Oxygen Consumed
Narcoleptic "This Duplicant can and will fall asleep anytime, anyplace" Falls asleep every 300-600s, for 15-30s (average of 30s per cycle)
Loud Sleeper "In space, everyone can hear you snore" Wakes up duplicants within 3 tiles when sleeping, causing interrupted sleep.
Flatulence "Some Duplicants are just full of it" Emits 5 g of Natural Gas every 10-40s (average 0.2 g/s)

Note that narcoleptic sleep can be interrupted by giving the Duplicant a movement command.

Properties[edit | edit source]

Properties are aspects of Duplicants that aren't leveled and can't be intrinsically changed (as opposed to Skills). However, many Attributes have positive and negative Traits associated with them.

Attribute Base Value Positive Trait Negative Trait
Oxygen Consumption 100 g/s Diver's Lungs (-25 g/s) Mouthbreather (+100 g/s)
Carbon Dioxide Production 20 g/s None None
Calorie Consumption 1000 kcal/Cycle None Bottomless Stomach (+500 kcal/Cycle)
Bladder Rate 100% per Cycle None Small Bladder (+100% per Cycle)
Toilet Speed 100% None Irritable Bowel (-50%)

Expectations[edit | edit source]

Duplicants have expectations for Decor and Food Quality. A duplicant's expectations will increase as they level up and become better at their primary job (highest skill level).

When in areas where the Decor is lower than their internal decor meter, their internal decor meter falls at -4.17 per second; and when it's higher, their decor meter will rise at 12.5 per second. If the meter falls below 0, it causes their Stress to rise at 10% per cycle ("Drab decor!"); if the meter rises above their decor expectation, it causes their Stress to decrease at -20% per cycle; otherwise there is no impact to stress. Decor expectation is initially -35, but is affected by some traits (such as "Uncultured" and "Interior Decorator"), and increases by 5 for each Duplicant Level (determined by the highest skill), up to a maximum of 75 increase from levels. The highest possible decor expectation is currently 45, at level 15 with the "Interior Decorator" trait.

Food has different quality ratings, ranging from -3 to 2. Duplicant food quality expectations start out at -3, but increase by 1 for every 5 levels, up to 0. When eating food, if it is within 1 unit of a food expectations, then stress is unaffected. If it is lower, then the Duplicant will gain 10% stress per cycle while eating; if it is higher, then they will lose 20% stress per cycle while eating. Eating takes about 30 seconds, so this results in +0.5% or -1% stress.

Stress Responses[edit | edit source]

Each Duplicant has a different stress response. These responses trigger at 60% and 100% stress (stress is reduced after the 100% response). All responses stop the current job in order to perform the response. These responses cannot be stopped by Red Alert or commanding the Duplicant to move.

Name Description Response
Vomiter "This Duplicant is liable to puke everywhere when stressed" Vomits on the floor, producing 200 g/s Polluted Water
Destructive "This Duplicant will take out their frustrations on defenseless machines when stressed" Damages nearby equipment and tiles, cannot perform the job "Repair"
Binge Eater "This Duplicant will dangerously overeat when stressed" Eats all reachable stored food (your entire supply)
Ugly Crier "If this Duplicant gets too stressed it won't be pretty" Sits on the floor and cries, producing 40 g/s Water, reducing Decor by 30

Needs[edit | edit source]

Need Description
  • Gain 0.9%/s in breathable conditions, lose 0.9%/s in unbreathable
  • Interrupt activity at 73% (after 30 seconds)
  • Suffocation warning occurs at 45% (after 60 seconds)
  • Lose 100%/cycle while awake
  • Gain 1400%/cycle while asleep (43 seconds of sleep for 100%)
  • Maximum of 4000 kcal, get hungry at 2000 kcal, become incapacitated at 0 kcal
  • By default, eat a maximum of 1500 kcal per cycle; need 1000 kcal per cycle
  • Becoming hungry interrupts sleep
Body Temperature
  • Healthy temperature is 37 °C (98.6 °F)
  • Feels cold at 34 °C (93.2 °F), hot at 40 °C (104 °F)
  • Takes damage outside of 32 °C (89.6 °F) to 42 °C (107.6 °F)

Ownership[edit | edit source]

Individual Duplicants can have ownership of certain structures: Cots, Mess Tables, Medical Cots, and Rejuvenators. Each Duplicant can only be assigned to one, and they can be reassigned by the player at any time. They will automatically select Cots and Mess Tables for themselves if unassigned.

Emotions[edit | edit source]

Duplicants occasionally express emotions or reactions to things around them. This indicates their status in ways that you may want to keep track of.

Icon Description Icon Description
I am happy "I am happy" I am angry "I am angry"
I am enraged "I am enraged" I am unhappy "I am unhappy"
I am sleepy "I am sleepy" I am sick "I am sick"
I am hungry "I am hungry" I can not breathe "I can not breathe"
I am cold "I am cold" I am hot "I am hot"
I need the toilet "I need the toilet" I like/hate the decor "I like/hate better decor"
Something smells bad! "Something smells bad!" I am binge eating "I am binge eating"
I am crying "I am crying" I feel destructive "I feel destructive"
Loud noises "Loud noises!" I am stressed "I am stressed"
I am vomiting "I am vomiting" This is yuck "This is yuck!"

Established duplicants[edit | edit source]

As of development build CL#TU-210489 game-generated duplicants have an assigned name, appearance, and description (attributes and traits are still randomly generated). Changing the name of a Duplicate will alter the description as appropriate but will not change the appearance of the Dupe.

Currently Available*
Name Appearance Description
Abe Abe Abes are sweet, delicate flowers. They need to be treated gingerly, with great consideration for their feelings.
Ada Ada Adas enjoy writing poetry in their downtime. Dark poetry.
Ari Ari Aris tend to space out from time to time, but they always pay attention when it counts.
Ashkan Ashkan Ashkans have what can only be described as a "seriously infectious giggle".
Banhi Banhi The "cool loner" vibes that radiate off a Banhi never fail to make the colony swoon.
Bubbles Bubbles This Bubbles is constantly challenging others to fight her, regardless of whether or not she can actually take them.
Burt Burt Every single Burt has perpetually damp hands. It must be genetic.
Camille Camille.png This Camille loves anything that makes her feel nostalgic, including things that haven't aged well.
Catalina Catalina A Catalina is admired by all for her seemingly tireless work ethic. Little do people know, she’s dying on the inside.
Devon Devon This Devon dreams of owning their own personal computer so they can start a blog full of pictures of toast.
Ellie Ellie Nothing makes an Ellie happier than a big tin of glitter and a pack of unicorn stickers.
Frankie Frankie There’s nothing Frankies are more proud of than their thick, dignified eyebrows.
Gossman Gossman Gossmans are major goofballs who can make anyone laugh.
Harold Harold This Harold is cripplingly self-conscious of his long middle toes.
Hassan Hassan If someone says something nice to a Hassan he’ll think about it nonstop for no less than three weeks.
Jean Jean Just because Jeans are a little slow doesn't mean they can't suffer from soul-crushing existential crises.
Joshua Joshua Joshuas are precious goobers. Other duplicants are strangely incapable of cursing in a Joshua’s presence.
Leira Leira Leiras just want everyone to be happy.
Lindsay Lindsay A Lindsay is a charming, delightful woman, unless you make the mistake of messing with one of her friends.
Mae Mae There's nothing a Mae can't do if she sets her mind to it.
Marie Marie This Marie is positively glowing! What’s her secret? Radioactive isotopes, of course.
Max Max At any given moment a Max is viscerally reliving ten different humiliating memories.
Meep Meep Meeps have a face only a two tonne Printing Pod could love.
Mi-Ma Mi-Ma Ol' Mi-Ma here can't stand lookin' at people's knees.
Nails Nails People often expect a duplicant named "Nails" to be tough, but they're all pretty huge wimps.
Nikola Nikola This Nikola once claimed he could build a laser so powerful it would rip the colony in half. No one asked him to prove it.
Nisbet Nisbet This Nisbet likes to punch people to show her affection. Everyone’s too afraid of her to tell her it hurts.
Otto Otto Ottos always insult people by accident and exist in a perpetual state of deep regret.
Ren Ren Every Ren has this unshakable feeling that his life’s already happened and he’s just watching it unfold from a memory.
Rowan Rowan Rowans have exceptionally large hearts and express their emotions most efficiently by yelling.
Ruby Ruby This Ruby asks the pressing questions, like "Where can I get a leather jacket in space?"
Stinky Stinky This Stinky has never been invited to a party, which is a shame...his dance moves are incredible.
Travaldo Travaldo A Travaldo's monotonous voice and lack of facial expression makes it impossible for others to tell when he's messing with them.
Turner Turner This Turner is paralyzed by the knowledge that others have memories and perceptions of them they can't control.
Previously Available
Name Appearance Description
Archibald Archibald The colony is convinced that this Archibald was some sort of fancy monarch in a past life.
Bea Bea A little ray of sunshine in a bleak world, Beas loves(sic) people who love her right back.
Bertie Bertie This Bertie is convinced she can remember bits of her past prints. Everyone else is convinced she's making it up.
Bertrand Bertrand This Bertrand always feels great after a bubble bath and a good long cry.
Brady Brady Bradys are pretty cool when they can manage to suppress their natural narcissism.
Braynen Braynen This Braynen is severely disappointed by the colony's lack of cute, pudgy birds.
Casper Casper This Casper can't wait to die, so their poetry can be appreciated posthumously.
Cass Cass This Cass is painfully aware that she spits when she talks. She avoids joining in on most conversations because of it.
Cecil Cecil There's a technical term for a Cecil's personality..."dweeb".
Chuanli Chuanli A Chuanli's one dream is to shed their mortal coil and cut off all of time and space. It shouldn't be too much to ask.
Dan Dan Every Dan has this unshakable feeling that his life’s already happened and he’s just watching it as if in a movie.
Dorris Dorris This Dorris wakes up every day of her life with an urge to clip coupons for stores that don't exist.
Eleanor Eleanor A severe climate requires a severe woman. This Eleanor is that woman.
Elvira Elvira This Elvira can't remember a time when she wasn't blanketed in the cold embrace of darkness.
Elvis Elvis Every Elvis is convinced he was printed in the wrong generation...and on the wrong celestial body.
Ernestine Ernestine This Ernestine has one stubborn hair on her chin that plucking never seems to deter. It's okay though, she's growing attached to it.
Eugene Eugene Once you get a Eugene talking, it's impossible to get them to stop. Chitchat at your own risk.
Floyd Floyd Floyds have a theory that no matter what time it is, it's always actually 3AM.
Gabriel Gabriel Gabriels are spoiled rotten, but at least they have great hair.
Grub Grub Grubs think plants are neat.
Grungy Grungy A Grungy deeply relishes the feeling of dirt beneath her nails.
Gus Gus This Gus just wants everyone to be happy.
Hideki Hideki This Hideki is consumed by a deep, soulful weariness that no amount of sleep could possibly vanquish.
Horatio Horatio Horatios always feel as if someone is staring at them, although people rarely are.
Howard Howard A Howard’s monotonous voice and lack of facial expression make it impossible for others to tell when he’s messing with them.
Hugh Hugh A Hugh is truly a man stuck in the past. And in a space colony.
Isamu Isamu This Isamu traps people in long conversations about her "novel", but she's never once sat down to actually write it.
Jack Jack A lifetime of running from his responsibilities has made this Jack emotionally impenetrable.
Jasper Jasper Jaspers just want to dance.
Josie Josie A Josie is admired by all for her seemingly tireless work ethic. Little do people know, she's dying on the inside.
Leah Leah There's nothing Leahs are more proud of than their thick, dignified eyebrows.
Lenny Lenny Dirt's great. Space's great. Everything's great, according to Lennys.
Longwei Longwei This Longwei picks his nose when he thinks no one's watching. Thankfully, he never eats it.
Maha Maha Mahas always snort when they laugh. It's the worst.
McNair McNair All of space is brightened by a McNair's dazzling smile.
Ming-Mei Ming-Mei One time a Ming-Mei declared herself mayor of the colony for a whole week and no one even questioned it.
Mamoru Mamoru The "cool loner" vibes that radiate of a Mamoru never fail to make the colony swoon.
Metrodora Metrodora Metrodoras love watching old black and white films, especially if they have robots in them.
Moon Moon A Moon's monotonous voice and lack of facial expression make it impossible for others to tell when she's messing with them.
Mozzarella Mozzarella World...too...bright...
Mystique Mystique Mystiques defy all labels.
Nadia Nadia The burden of living is just too much for some people. Like this Nadia, for instance.
Neil Neil Neils generally like to wear strange and unusual hats to compensate for their total lack of personality.
Nori Nori Get a bunch of Noris together in a room, and you'll have...a bunch of Noris together in a room.
Olive Olive This Olive feels like there's an emotional wall between themself(sic) and the world that their multitool just can't penetrate.
Pam Pam No one ever asks for a Pam's bad opinions, but she's always happy to offer them anyway.
Pierre Pierre Big softies with a tendency to nag, Pierres sometimes feel like the mothers the other duplicants never had.
Price Price This Price once had dreams of becoming a doctor, but sadly, he's averse to the sight of blood.
Quincy Quincy At any given moment, a Quincy is viscerally reliving ten different humiliating memories.
Ralph Ralph Everyone feels slightly more irritable after having spent time with a Ralph.
Red Red Reds are completely incapable of distinguishing between positive and negative attention, much to the colony's dismay.
Rosalind Rosalind Sometimes this Rosalind feels like she'd have to keel over for people to notice her.
Sadie Sadie This Sadie never clips her fingernails. The unchecked growth is starting to get a little unsettling.
Seth Seth Sometimes the colony sends Seths on fake "spelunking" jobs just to get some peace and quiet.
Shannon Shannon Some have described Shannons as "paranoid". They prefer the term "prepared".
Spike Spike Spikes detest small spaces. You can imagine how they feel about the colony.
Stacy Stacy A Stacy can somehow talk for hours and say absolutely nothing. It's a feat to behold!
Suki Suki Sukis have grins like sharks and stares to pierce through your soul.
Sybil Sybil Sybils always get what they want...even when they shouldn't.
Tilly Tilly Tillys like to frequently and loudly remind everyone of the pointlessness of existence.
Vernon Vernon The colony's managed to convince this Vernon he's totally and completely unique. It's hilarious!
Virgil Virgil Virgils are overcome with childlike wonder at the infinite nature of the universe.
Will Will Wills have great hair and are always about ten seconds away from starving to death.
Woodrow Woodrow Woodrows are exceptionally bad at reading social cues and never know when to stop talking.
Yvette Yvette A Yvette's every waking moment is plagued by her terrible genetic curse...a horrifyingly acute sense of smell.
Zeke Zeke A Zeke's snobby exterior is a defense to protect the kind, mushy heart that lurks within.

*As of build TB-247460

See also[edit | edit source]