Chemicals

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The 48 core chemicals that drive every creature in the Interior, by category. The game code defines 118 chemicals in total; the 70 beyond these are species-specific and are not listed here. How these chemicals interact — organs, reactions, receptors, emitters — is described in Biochemistry.

Energy (5)

ChemicalUsed by species
GlucoseEttin
ATPEttin Grendel Norn
ADPEttin Grendel Norn
GlycogenEttin
Starch—

Drives (14)

ChemicalUsed by species
PainGrendel
Hunger—
Thirst—
Fatigue—
LonelinessEttin Norn
BoredomEttin
CuriosityEttin Grendel
FearGrendel
AngerGrendel
HappinessNorn
SadnessEttin
ComfortEttin Grendel
Crowding—
Sleepiness—

Hormones (10)

ChemicalUsed by species
AdrenalineGrendel
EndorphinGrendel
Testosterone—
Oestrogen—
OxytocinNorn
Cortisol—
Melatonin—
DopamineEttin Norn
SerotoninEttin Grendel Norn
GrowthHormone—

Nutrients (5)

ChemicalUsed by species
Protein—
Fat—
Water—
Vitamin—
Mineral—

Damage & Healing (4)

ChemicalUsed by species
Injury—
Antibody—
ToxinGrendel
HealingFactor—

Reproduction (3)

ChemicalUsed by species
Fertility—
Pregnancy—
MatingDrive—

Neurotransmitters (5)

ChemicalUsed by species
GABA—
Glutamate—
Acetylcholine—
PreREM—
REM—

Meta (2)

ChemicalUsed by species
Age—
Dead—