Breeding and Growth Guide

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This page is your practical timing reference for line planning.

How Breeding Starts

Breeding is passive by default.

When two compatible animals (adult male and female of same species) meet breeding requirements, they will periodically produce offspring on their own.

You can also crouch and feed favorite food to breed manually.

This is useful when:

• You want to breed a specific pair immediately.
• You have disabled passive breeding.

How Breeding Is Gated

Your breeding pair must pass all of these checks:

• Tamed
• Adult
• One male, one female
• Not in combat
• Not sleeping
• Happiness above 80%
• Not on cooldown
• Not overcrowded

Manual breeding still respects these gates. If crouch-feeding does not start breeding, the animal is usually blocked by one of the checks above.

Flying companions use the same breeding gates. They land before pairing and return to Flight mode after breeding if it remains selected. Keep clear ground near the pair so both companions can complete the landing and approach.

Litter Size, Capacity, and Pending Births

Fertility intentionally rolls a litter from zero through four offspring. Zero is a normal biological result, not necessarily an error or a duplicated callback.

Manual and passive breeding use the same birth-job and capacity rules:

• MaxNearbySameType is a hard execution-time ceiling.
• Live nearby animals and children reserved by other pending litters both consume headroom.
• If a planned litter is larger than the remaining headroom, only the admitted number can spawn.
• One parent can belong to only one active birth job, and a job can claim its spawn callback only once.
• Capturing either parent into a Tamework-managed coop before birth cancels the pending job; the delayed callback also checks that both parents are still valid before spawning.

Example: with a maximum of eight matching animals, seven already nearby, and a rolled litter of four, only one child is admitted. Two pairs starting near the limit share the same reservations, so their combined result cannot exceed the cap.

Adult Aging

After juvenile growth, animals progress through Adult, Prime, and Senior. The command panel shows their stage and countdown. Wild-caught adults begin before Prime.

The default Animal Progression setting in /tw settings freezes animals at Prime. Administrators can disable adult aging, enable the full lifecycle, and optionally allow old-age death. Prime gives full domestic slaughter yield; other adult stages give 50% of the otherwise calculated yield. Disabling aging restores full adult yield. Natural old-age death uses ordinary drops without the slaughter bonus.

These initial timings match Rune Husbandry for shared species. All durations are eligible real time, independent of the world's day length. Senior lasts as long as Prime; both durations matter only with the full lifecycle enabled.

Animals	Adult to Prime	Prime duration	Senior duration
Chicken, Desert Chicken, Bunny, Rabbit	30 min	6 h	6 h
Pig, Turkey, Skrill	45 min	12 h	12 h
Wild Pig	60 min	12 h	12 h
Goat	45 min	18 h	18 h
Sheep, Mouflon, Ram, Boar, Warthog	60 min	18 h	18 h
Cow	60 min	24 h	24 h
Bison, Camel, Horse	75 min	30 h	30 h
Mosshorn, Plain Mosshorn, Trillodon	90 min	36 h	36 h
Other neutral animals and beasts	60 min	18 h	18 h

For loaded animals, low hunger or thirst slows progress toward Prime and speeds progress out of Prime. The lower need sets the rate; penalties do not stack. At 50% or above, aging runs normally. At 25%, progress toward Prime is 50% slower and progress out of Prime is 50% faster; at 0%, those changes are 75%.

The shared offline policy pauses progress during owner-offline grace, then applies its configured multiplier. Unloaded animals age at the normal care rate during eligible time without consuming food or water. Server downtime and captured storage add no progress, and trading preserves age.

Livestock Breeding and Growth Reference

After breeding, animals will be unable to breed for the duration of their breeding cooldown.

Default livestock pairing/cooldown profile:

• Base cooldown: 45 minutes
• Random delay: 0-300 sec
• Max nearby same type: 8

Every species below overrides the default cooldown and delay.

Mob	Baby Stage	Base Breeding Cooldown	Random Delay Window	Time to Full Grown
Bison	Bison Calf	90 min	270-810 sec	150 min
Boar	Boar Piglet	60 min	180-540 sec	90 min
Bunny	Miniature adult	35 min	105-315 sec	50 min
Camel	Camel Calf	85 min	255-765 sec	135 min
Chicken	Chicken Chick	60 min	180-540 sec	60 min
Chicken Desert	Chicken Desert Chick	60 min	180-540 sec	60 min
Cow	Cow Calf	100 min	300-900 sec	120 min
Goat	Goat Kid	80 min	240-720 sec	90 min
Horse	Horse Foal	90 min	270-810 sec	150 min
Mosshorn	Miniature adult	110 min	330-990 sec	180 min
Mosshorn Plain	Miniature adult	110 min	330-990 sec	180 min
Mouflon	Mouflon Lamb	70 min	210-630 sec	90 min
Pig	Pig Piglet	60 min	180-540 sec	90 min
Pig Wild	Pig Wild Piglet	65 min	195-585 sec	90 min
Rabbit	Miniature adult	35 min	105-315 sec	50 min
Ram	Ram Lamb	70 min	210-630 sec	90 min
Sheep	Sheep Lamb	90 min	270-810 sec	100 min
Skrill	Skrill Chick	65 min	195-585 sec	75 min
Turkey	Turkey Chick	60 min	180-540 sec	80 min
Warthog	Warthog Piglet	65 min	195-585 sec	90 min

Beast Breeding and Growth Reference

Mob	Base Breeding Cooldown	Random Delay Window	Time to Full Grown	Max Nearby Same Type
Bear Grizzly	90 min	270-810 sec	180 min	3
Bear Polar	90 min	270-810 sec	180 min	3
Crocodile	100 min	300-900 sec	200 min	4
Emberwulf	85 min	255-765 sec	220 min	2
Fen Stalker	95 min	285-855 sec	170 min	4
Fox	60 min	180-540 sec	90 min	6
Fox Arctic	60 min	180-540 sec	90 min	6
Frost Dragon	180 min	540-1620 sec	300 min	4
Hyena	75 min	225-675 sec	120 min	5
Larva Silk	50 min	150-450 sec	60 min	8
Leopard Snow	85 min	255-765 sec	140 min	4
Molerat	55 min	165-495 sec	80 min	7
Raptor Cave	80 min	240-720 sec	130 min	5
Rat	45 min	135-405 sec	50 min	10
Rex Cave	110 min	330-990 sec	210 min	2
Scorpion	70 min	210-630 sec	100 min	6
Slug Magma	50 min	150-450 sec	60 min	8
Snake Cobra	60 min	180-540 sec	90 min	7
Snake Marsh	55 min	165-495 sec	80 min	7
Snake Rattle	60 min	180-540 sec	90 min	7
Snapdragon	100 min	300-900 sec	190 min	3
Spider	65 min	195-585 sec	90 min	6
Spider Cave	70 min	210-630 sec	100 min	6
Tiger Sabertooth	90 min	270-810 sec	160 min	3
Toad Rhino	80 min	240-720 sec	130 min	4
Toad Rhino Magma	85 min	255-765 sec	140 min	4
Wolf Black	70 min	210-630 sec	120 min	5
Wolf White	70 min	210-630 sec	120 min	5
Yeti	120 min	360-1080 sec	220 min	2

[Screenshot Placeholder: Breeding pair ready state on two companions] [Screenshot Placeholder: Newborn/juvenile stage beside adult parent]