Breeding Calculator

FARMER

Roll Rat

Spawn Command

Information

Level

Preset

Official servers currently have boosted rates! You don't need to change settings in our calculator.

Base Settings

Variant

Taming Speed

Roll Rat Egg & Breeding Calculator

The Roll Rat gives live birth after mating, skipping the egg-incubation step entirely. Gestation takes approximately 4 hours and 59 minutes at default rates.

Full maturation from baby to adult takes ~2 days and 9 hours (1x rate), progressing slowly. Hand-feeding is required until 10% maturation. After that, a Feeding Trough handles the rest.

Each baby inherits stats from both parents with a chance of mutation - +2 wild levels to a random stat plus a color change. Use the breeding calculator to plan food requirements, incubation timers, and maturation phases.

Settings

Maturation Multiplier

Egg Hatch Multiplier

Food Consume Mult.

Creature Weight

Cuddle Interval Mult.

Imprinting Mult.

Pregnancy

Mating - 0%

2:29:59

The dinosaur is in its mother's womb, requiring time and care from the mother for successful gestation and birth.

Baby

0% - 10%

2:53:36

The hatched dinosaur, now a baby, needs constant attention and food placed directly in its inventory to survive, or a nearby Maewing to take care of its needs.

Juvenile

10% - 50%

11:34:26

The dinosaur reaches the juvenile stage, where it can now eat from a feeding trough, reducing the need for direct feeding.

Adolescent

50% - 100%

14:28:03

The dinosaur reaches the adolescent stage, becoming more independent and able to follow you while continuing to grow toward full maturity.

Maturation has three phases: Baby (0–10%) lasts ~347 min and requires constant hand-feeding. Juvenile (10–50%) spans ~23h - it can eat from a Trough now. Adolescent (50–100%) takes ~29h - continues eating from troughs, nearly fully grown.

Don't skip imprinting - each successful imprint boosts the Roll Rat's stats, and hitting 100% grants a 30% combat bonus when the imprinter rides it. Keep various kibble types on hand, as imprint requests are randomized between cuddles, walks, and kibble feeding.

Maturation Progress

Select Food

BabyJuvenileAdolescent

Status:

Baby

Time Left:

27:29:18

Total Time:

28:56:06

Maturation

Incubation Time

2h 29m 59s

Elapsed Time

1h 26m 49s

Maturation Time Left

27h 29m 18s

Time to Juvenile

1h 26m 48s

Food

Total Food Items

1677

items

Food to Adult

1094

items

Food Per Hour

111

Food Capacity

200

items

Baby Hand Feed For

N/A

4.6% maturation

Imprinting

Cuddle Interval

Imprint Per Cuddle

Max Imprint

0.0%

The raising calculator above shows exactly how much food you need for each maturation phase of the Roll Rat. Budget ~347 minutes for the Baby phase - this is when hand-feeding or Maewing nursing is mandatory.

Raising multiple Roll Rat simultaneously? Set the dino count and the calculator scales food requirements automatically. Different food types have different spoil timers - factor that into which food you stockpile.

Raising CalculatorFrom 5% - use slider above to adjust

Babies

Food

Food per item

Stack size

100

Eats at 5%

91.74 food/min

Maturation

28h 56m 6s

Phase	Duration	Mejoberry	Stacks	Weight
BabyNeed this much for 5% to 10%	1h 26m 48s	259	3	25.9
JuvenileNeed this much for 10% to 50%	11h 34m 26s	1,565	16	156.5
AdolescentNeed this much for 50% to 100%	14h 28m 3s	699	7	69.9
Total	27h 29m 18s	2,523	26	252.3

Feeding Trough

6,000 items(60 slots)

Fits in one load

Tek Trough

10,000 items(100 slots)

Fits in one load

Maewing / Maeguana

300 slots

50% weight reduction on meat & berries

Baby- 3x trough refills needed (food spoils before phase ends)Juvenile- 18x trough refills needed (food spoils before phase ends)Adolescent- 22x trough refills needed (food spoils before phase ends)

Spoils in 10m|

Trough / Maewing: 40m|

Tek Trough: 16h 40m

During the Baby phase (0-10%), you must hand-feed or use a Maewing to nurse. From Juvenile (10%+), dinos can eat from a Feeding Trough on their own. Use Preserving Salt in troughs to double spoil times.

The Roll Rat is a tamable, herbivore creature in ARK: Survival Ascended. It belongs to the Farmer category.

At 850 base HP, the Roll Rat is quite durable. Melee starts at 100% - respectable melee power that scales with level-ups. Its base Stamina of 300 gives it moderate endurance. Weight capacity starts at 400, giving it a solid weight pool.

The Roll Rat is passively tamed - approach it carefully and feed it by hand without knocking it out. Its preferred food is Giant Bee Honey.

Once tamed, the Roll Rat is primarily used for resource harvesting, excelling at gathering specific materials. It gives live birth after a gestation period, making breeding straightforward. Defeating one in the wild grants 7 base XP. It can be cloned at a Cloning Chamber for 0.45 Element plus 0.01 Element per level.

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