Roll Rat
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.
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.
Incubation Time
2h 29m 59s
Elapsed Time
1h 26m 49s
Maturation Time Left
27h 29m 18s
Time to Juvenile
1h 26m 48s
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
Cuddle Interval
0s
Imprint Per Cuddle
0%
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
Food per item
30
Stack size
100
Eats at 5%
91.74 food/min
Maturation
28h 56m 6s
| Phase | Duration |  Mejoberry |
|---|---|---|
 BabyNeed this much for 5% to 10% | 1h 26m 48s | 259 |
 JuvenileNeed this much for 10% to 50% | 11h 34m 26s | 1,565 |
 AdolescentNeed this much for 50% to 100% | 14h 28m 3s | 699 |
 Total | 27h 29m 18s | 2,523 |
WeightFeeding 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.