
Mammal
Roll Rat
Heterocephalus magnus
Also known as Mole Rat
- Tameable
- Rideable
- Breedable
- Diet
- Herbivore
- Temperament
- Passive
- Era
- Holocene
- Drag weight
- 245
Where it spawns
- Very common
- Common
- Uncommon
- Very uncommon
- Rare
- Very rare
Spawn areas mined from the game files by the ARK Wiki; Ascended data where the wiki has it. Creatures roam a little outside their areas.
Base stats and growth
| Stat | Base | Per wild level | Per tamed level |
|---|---|---|---|
| Health | 850 | +170 | +5.4% |
| Stamina | 300 | +30 | +10.0% |
| Oxygen | 150 | +15 | +10.0% |
| Food | 3,000 | +300 | +10.0% |
| Weight | 400 | +8 | +4.0% |
| Melee | 42 | +2.1 | +1.7% |
| Move Speed | 100% | — | +2.0% |
| Torpidity | 800 | +48 | — |
Dossier
In the wild
Bearing a strong resemblance to its relative, the Naked Mole Rat, Heterocephalus magnus is a gentle giant that digs for plants and fungi with its imposing front teeth. While foraging, it often uncovers precious resources inadvertently, but survivors should claim them with caution, as this triggers an aggressive response. When threatened, Heterocephalus rolls up into a ball to shield itself with the armored plates on its back, much like an armadillo. It then rolls around like an oversized bowling ball, smashing through rocks, walls, and hopefully its aggressor.
Once tamed
While hardly a ferocious war beast, Heterocephalus is an effective transport that can carry up to three passengers. In theory, it could also be siege weapon, as its rolling attack can dent even metal. Fortunately, most survivors use a special saddle that deploys a protective canopy when it starts spinning, which not only keeps them from getting squished, but provides extra protection to the rider and mount alike.
Breeding
1 Gestation
4h 57m 37s
2 Baby
5h 47m 13s
3 Juvenile
23h 8m 53s
4 Adolescent
1d 4h 56m 6s
- Fully grown after
- 2d 9h 52m 13s
- Mate again after
- 18h - 2d
Taming
- Method
- Passive
Saddle

Roll Rat Saddle
Unlocks at level 58, 25 armor
Crafting cost
- Hide
- 270
- Fiber
- 150
- Metal Ingot or Scrap Metal Ingot
- 425
- Cementing Paste or Achatina Paste
- 85
- Green Gem or Fragmented Green Gem
- 45
Crafted in Smithy, Argentavis Saddle, Castoroides Saddle, Thorny Dragon Saddle, Tek Replicator, Exo-Mek
On the ARK Wiki
Technical
- Entity ID
MoleRat_Character_BP_C- Cloneable
- No
