How to Tame Rex in ARK
The Rex is one of the most iconic creatures in ARK. A powerful carnivore, often used as a combat mount for boss fights and base raids.
Quick Facts
- Diet
- Carnivore
- Temperament
- Aggressive
- Tame Method
- Knockout
- Rideable
- Yes
Rex Taming Details
Rex is a knockout tame. It starts with 1,550 base torpor and gains +93 per level. Torpor drains ~0.72/sec once it is down, so keep Narcoberries or Narcotics ready to top it up during the tame. Its most effective taming food is Kibble (preferred) or Raw Mutton. Once tamed, craft a Rex Saddle, Rex Tek Saddle to ride it.
Alternative foods: Cooked Lamb Chop, Raw Prime Meat, Cooked Prime Meat, Raw Meat.
Harvest yield: a tamed or killed Rex drops Raw Meat, Raw Prime Meat, Hide, Keratin.
Taming Steps
1. Prepare your gear
Bring Tranq Arrows or Tranq Darts, a Crossbow or Longneck Rifle, Narcotics or Narcoberries, and bug repellent.
2. Locate the creature
Find a wild Rex on supported maps. Check the spawn map and bring a fast mount or a flyer for transport.
3. Knock it out
Rex is a knockout tame. Use a Crossbow, Longneck Rifle with Tranq Darts, or Shocking Tranq Darts. Aim for the head for bonus torpor and keep distance to avoid aggro damage.
4. Feed the right food
Place Kibble (preferred) or Raw Mutton in its inventory (alternatives: Cooked Lamb Chop, Raw Prime Meat, Cooked Prime Meat, Raw Meat). Higher-tier food gives faster taming and higher level bonuses.
5. Maintain torpor
Watch the torpor bar. Feed Narcoberries or Narcotics to prevent it from waking up before the tame completes.
6. Claim & saddle
Once tamed, equip a saddle (unlocks via the engram tab) to ride your Rex.
Rex base stats
Level 1 wild values, with the gain each point adds in the wild and after taming.
| Stat | Base | Per wild level | Per tamed level |
|---|---|---|---|
| Health | 1100 | +20.0% | +27.0% |
| Stamina | 420 | +10.0% | +10.0% |
| Oxygen | 150 | +10.0% | +10.0% |
| Food | 3000 | +10.0% | +10.0% |
| Weight | 500 | +2.0% | +4.0% |
| Melee damage | 1 | +5.0% | +10.0% |
| Movement speed | 1 | +0.0% | +1.0% |
| Torpidity | 1550 | +6.0% | +0.0% |
Taming & saddle figures
Breeding & movement
Where it spawns & other details
Rex spawns on The Island, Scorched Earth, Ragnarok, Valguero, Astraeos, The Center, Lost Colony, Genesis Part 1, Extinction.
Rex variants
- Alpha T-Rex
- Brute Malfunctioned Tek Rex (Genesis: Part 1)
- Brute X-Rex (Genesis: Part 1)
- Corrupted Rex (Genesis: Part 2)
- DodoRex
- Eerie Alpha T-Rex
- Eerie Rex
- Enraged Corrupted Rex (Extinction)
- Malfunctioned Tek Rex (Genesis: Part 1)
- Rex Ghost
- Skeletal Rex
- Tek Rex (Genesis: Part 1)
- VR Rex (Genesis: Part 2)
- X-Rex (Genesis: Part 1)
- Abyssal Alpha T-Rex
- Abyssal Rex
- Enraged Lightning Rex (Extinction)
- Lightning Infused Rex (Astraeos)
- Revenant Rex
- Succumbed Revenant Rex
- Astral T-Rex (Astraeos)
Related tools & resources
Rex — Background & Lore
The Rex is the iconic apex carnivore of ARK and the backbone of most boss teams. It combines a huge health pool with heavy bite damage. Bred Rexes with stacked mutations are what most tribes take into the Broodmother, 
Megapithecus and 
Dragon arenas.
Where to find it
- ASA: The Island, The Center and Lost Colony have spawn zones that hold only Rexes. It also appears on Astraeos, Valguero, Extinction, Ragnarok and Genesis Part 1.
- ASE: it spawns on Scorched Earth and Lost Island, and in mixed spawn zones on The Island, The Center, Valguero, Extinction and other maps.
Taming
A Rex is a knockout tame. Knock it out with tranquilizer arrows or darts from a safe spot, such as a high rock or behind a door frame, then feed it meat. 
Raw Prime Meat tames much faster than regular meat. Use our taming calculator for the exact food count and narcotics at your server's rates.
Breeding
- Egg: lays eggs that hatch in about 5 hours at default rates.
- Temperature: the eggs need warm incubation, 32 to 34 °C in ASE.
- Growth: a baby takes about 3.9 days to mature at 1x.
Uses
- Combat: boss fights, cave clearing and defense.
- Harvesting: collects
Raw Meat, Raw Prime Meat, 
Hide and 
Keratin well.
Tips
Build its saddle early. For bosses, raise Rexes from a breeding line rather than taming wild ones, because mutations on health and melee add up.