Stress

Stress is a core mechanic of Oxygen Not Included. At 100% stress, Duplicants will be unresponsive to orders and proceed to vent Stress in their preferred way until it drops to 60%. Each of these are detailed on the Duplicant page.

Stress Causes

Cause	Name	Stress Gain/Cycle	Duration (in cycles)	Note
Morale below expectations	Low Morale	Variable	Until solved	Between 0 and 50% per cycle depending on amount and difficulty setting
Stepping on a tile with liquid in it	Soggy Feet	10%	0.2	Without Atmo Suit only, mutually exclusive
Being fully submerged in a liquid	Sopping Wet	20%	0.3	Without Atmo Suit only, mutually exclusive
When Oxygen Gas Pressure is below 500g	Low Oxygen	10%	Until solved	Without Oxygen Mask or Atmo Suit only; not caused by Holding Breath
When Gas Pressure is >4 kg/tile	Popped Eardrums	20%	0.5	Without Oxygen Mask or Atmo Suit only
When thermal exchange is too low	Chilly Surroundings	10%	Until solved	Without Atmo Suit only; gases below ~279K/6°C, liquids below 309K/35°C
When thermal exchange is too high	Toasty Surroundings	10%	Until solved	Without Atmo Suit only; gases above ~327K/53°C, liquids above 311K/38°C
Interrupted sleep by another Duplicant	Dead Tired	20%	0.7
When a Duplicant dies	Mourning	20%	3	Relieved by mourning at a Tasteful Memorial
Bladder at 100%	Full Bladder	30%	Until solved	~6.42% until mess
Bladder at 100% for 125 seconds	Making a Mess	50%	Until finished	~0.68% per mess
Difficulty Setting	Glum	10%	Permanent
Difficulty Setting	Frankly Depressing	20%	Permanent
Making a mess while having an Exosuit equipped	Soiled Suit	40%	Until Duplicant unequips suit
Exposure to Floral Scent germs	Allergic Reaction	15%	0.1	Only Duplicants with the 'Allergies' trait are susceptible to Allergic Reactions
Exposure to the Banshee stress response	Disturbed by Wailing	10%	0.5	Affects Duplicants within 8 tiles of the wailing Duplicant
Consumed Curried Beans	Hot Stuff	5%	2.0	+3 Athletics, +3 Strength, +1 Sneeziness
Exposure to a light source of 72000 Lux or higher for longer than 120 seconds	Sunburn	20%	1.75	Mutually exclusive with "Bright and Cheerful" and "Intensely Bright"

Stress Relief

Mean	Name	Stress Relief per Cycle	Duration in cycles	Note
Morale exceeds expectations	High Morale	20%*	Until changed	*10% if the current Morale is exactly 1 higher than Morale expectations
Morale equal to expectations	Sufficient Morale	5%	Until changed
Sleep	Sleeping	20%	Until stopping	Bedding (and lack thereof) does not matter
Duplicants interacting	Pleasant Chitchat	5%	0.1	Affects both
Duplicants interacting	Saw a Friend	5%	0.1	Affects both
Duplicants interacting while one is working	Appreciated	5%	0.1	Affects the worker
Using Arcade Cabinet	Gaming	15%	0.025	0.375% total
On a Massage Table	Receiving Massage	30%	Until stopping	Mutually exclusive
On a Massage Table inside a Massage Clinic	Receiving Clinic Massage	60%	Until stopping	Mutually exclusive
Rest on a Med-Bed	Med-Bed Rest	10%	Until stopping	Mutually exclusive
Received Care on a Med-Bed	Receiving Care	20%	0.5	Mutually exclusive
Printing a new Duplicant	New Friend	10%	3
Applied to the starting 3 Duplicants	New Hope	20%	3
Difficulty Setting	Chipper	10%	Permanent
Difficulty Setting	Cloud Nine	Infinity	Permanent	Makes Stress gain impossible
Follow Cam	Center of Attention	5%	As long as Follow Cam is used	Can only be used on one Duplicant at a time
Exposure to Floral Scent germs	Smelled Flowers	5%	0.3	Duplicants with the 'Allergies' trait will experience an Allergic Reaction instead
Consumed Frost Burger	Soul Food	15%	2.0	-2 Athletics
Walking on Carpeted Tiles	Tickled Tootsies	15%	0.025	Also when resting on Carpeted Tiles, e.g. while sleeping
Relaxing in a Beach Chair	Totally Chill	15%	Until stopping
Exposure to a light source of 40000 Lux or higher	Bright and Cheerful	10%	Until exposure ends	Mutually exclusive with "Intensely Bright" and "Sunburn"
Exposure to a light source of 72000 Lux or higher for less than 120 seconds	Intensely Bright	5%	Until exposure ends	Mutually exclusive with "Bright and Cheerful" and "Sunburn." Causes Sunburn if applied for longer than 120 seconds in a row

Stress Responses

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

Name	Description	Response	Warning Sign (60% Stress)
Vomiter	This Duplicant is liable to puke everywhere when stressed	Vomits on the floor, producing 200 g/s Polluted Water. While vomiting, a duplicant's calories also decrease more rapidly. Vomiting may be prevented or interrupted by continuously issuing move commands to a duplicant.	Vomiters will burp violently.
Destructive	This Duplicant will take out their frustrations on defenseless machines when stressed	Damages nearby equipment and tiles, and cannot repair buildings above 60% stress.	Destructive Dupes shake their arms violently before calming themselves.
Binge Eater	This Duplicant will dangerously overeat when stressed	Eats 2000 kcals of food 3 times before returning to 60% stress. Decrease decor by -30 in a 3 tile radius while doing so.	Binge Eaters will bite their nails and hold their stomach.
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.	Ugly Criers will squeeze out a few tears but will promptly get back up. (No water is created)
Banshee	This Duplicant wails uncontrollably when stressed	Moves to a location and wails, stressing out other Duplicants by +10%/cycle in a 8 tile range.	Banshees will bite their lip and shake their arms.
When any Dupe is beyond 60% Stress, other Dupes may gesture towards them.