How do you tame a Rex in ARK: Survival Ascended?

The Rex is a knockout tame. Knock it unconscious using Tranq Arrows, Tranq Darts, or Shocking Tranq Darts, then feed it Exceptional Kibble for the best taming effectiveness. Use a taming calculator to determine the exact food and narcotic quantities needed for your target level.

What does a Rex eat in ARK: Survival Ascended?

The best food for taming a Rex is Exceptional Kibble. It also accepts Raw Mutton, Raw Prime Meat, Cooked Lamb Chop.

Where can you find Rex in ARK: Survival Ascended?

Check the interactive spawn map on the Rex spawn location page for exact spawn zones across all ARK maps. Spawn density and locations vary by map.

How long does it take to raise a baby Rex?

A baby Rex takes 3 days and 20 hours to reach full maturity. Eggs must be incubated between 32°C and 34°C. Use a breeding calculator for imprint timing and food requirements.

Rex Taming, Breeding & Spawns - ARK: Survival Ascended

Rex

DMG

Rex

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

Spawn Locations

19 mapsFull Map →

Found across 19 maps in forests, swamps, and mountain regions. Green zones have the highest spawn density. Each species has a population cap per area, so wiping out other creatures nearby can trigger new Rex spawns.

Official

Mod Maps

Map Legend

High spawn density

Medium spawn density

Low spawn density

Cave spawn

Click any cell for exact spawn chance and nearby spawn groups. Zoom in for detail.

Explore full interactive mapAstraeos →

Rex Taming Calculator

Open Calculator→

KnockoutTime: 30m 42s|Effectiveness: 99.7% (+74 Lvl)|Base Torpor: 1,550Lv.150

Food	Qty	Time	Effectiveness
Exceptional KibbleBest	9	30:42	74 Lvl (224)
Raw Mutton	18	36:01	73 Lvl (223)
Raw Prime Meat	22	44:01	73 Lvl (223)
Cooked Lamb Chop	33	1:05:56	71 Lvl (221)
Raw Meat	65	2:10:01	62 Lvl (212)
+6 more in calculator →

Required Narcotics (Exceptional Kibble ×9)

Narcotics0

Narcoberries0

Bio Toxin0

Ascerbic Mushrooms0

Breeding

Open Calculator →

TypeEgg Layer

Incubation Temp32°C – 34°C

Maturation Time3d 20h

Quick Info

Saddles

Rex SaddleLv.74

Rex Tek SaddleLv.?Tek

Carried By

Immobilized By

XP Calculator

Full Calculator →

Kill XP

Wild Kill (1.25×)

Creature Level

Kill Count

Per Kill2,385 XP

30 base × 15.9 level × 4 × 1.25× wild kill × 1× server

Server Settings(Game.ini)

Official servers use non-1× defaults for kill-type multipliers. Adjust these if your server uses custom Game.ini values.

Server XP

Wild Kill

Tamed Kill

Alpha Kill

Cave Kill

Boss Kill

Saddle Crafting XP

Rex SaddleBase: 86 XP · Lv.74

344 XP

Rex Tek SaddleTekBase: 86 XP

344 XP

Base × 1× quality × 4 × 1× server

Drops & Harvest Resources

You can gather Hide, Raw Meat, Raw Prime Meat from a Rex corpse. The corpse has 520 harvest health, allowing multiple hits before it's fully depleted.

Different tools yield different quantities - check the table below to pick the right tool for the resource you need. Generally, a Pick favors meat while a Hatchet favors hide and secondary materials.

Harvest Body HP

Melee Damage

Weapon Damage

Harvest Multiplier

Resource	Pick	Hatchet
Hide	40%~21~17 hits	60%~32~13 hits
Raw Meat	60%~24~17 hits	40%~16~13 hits
Raw Prime Meat	3%~1~17 hits	2%~1~13 hits
Tyrannosaurus ArmDrop	—	—
Rex Bone HelmetDrop	—	—

Estimates based on game-extracted data (weights, quantities, harvest multipliers, damage type chains). Each harvest event independently rolls each resource - higher weight = higher drop chance. Actual yields vary with RNG.

Damage Resistances

The Rex's damage profile includes 14 modifiers that alter how much damage it takes from different sources. With 7 resistances and 6 weaknesses, its biggest vulnerability takes +400% extra damage - exploit that for faster kills. See the full breakdown in the table below. Values under 100% indicate resistance, above 100% indicate weakness.

MiningDrill Harvest

0%-100%

Dino AttacksStandard dino melee hits

50%-50%

Plant Species XPlant turret projectiles

50%-50%

Herbivore DinoHerbivore dino attacks

60%-40%

Stone WeaponsClub, slingshot (high torpor)

66%-34%

GenericFall damage, environmental

70%-30%

Base Stats

Full Stats →

Stat	Base (Lv.1)	Wild +/Lv	Tamed +/Lv
Health	1100.0	+220.00	+4.00%
Stamina	420.0	+42.00	+2.00%
Torpidity	1550.0	+0.00	+0.00%
Oxygen	150.0	+15.00	+2.00%
Food	3000.0	+300.00	+2.00%
Weight	500.0	+10.00	+0.80%
Melee Damage Multiplier	100.0%	+5.00%	+10.00%
Speed Multiplier	100.0%	+0.00%	+1.00%

Hitbox Multipliers

Aiming matters - the Rex has 1 hitbox region with distinct damage modifiers. Hit the Head (1.5x multiplier) for the highest damage per shot.

HeadCnt_Jaw_JNT_SKL

1.50x

Can Damage

The Rex can damage: Thatch, Wood. It can break through Thatch and Wood, so upgrade to Stone at minimum for protection.

Thatch

Wood

Stone

Metal

Tek

Tools & Guides

Taming CalculatorFood, narcotics, and time for any level

Breeding CalculatorMaturation, imprint timers, raising costs

BuildingsCommunity traps, pens, enclosures

AbilitiesAttacks, harvest specs, unique skills

Tips & TricksCommunity strategies and advice

Spawn LocationInteractive maps with spawn zones

Spawn CommandAdmin commands, all variants

Rex Tips & Tricks

Check out what other players have learned about the Rex - and contribute your own tips. Players often share optimal trap layouts and torpor weapon comparisons for the Rex.

Everything you need to know about the Rex in ARK: Survival Ascended is collected here. Use the stat overview, taming summary, and breeding details below to plan your approach, then explore the dedicated tool pages for step-by-step help.

The Rex starts with 1,100 base Health, 100% base Melee Damage, 500 base Weight. These base values scale with each wild and tamed level-up, so check the taming calculator to see exactly what stats you can expect at different levels.

To tame the Rex, knock it out using Tranq Arrows or Darts and feed it Exceptional Kibble. Head to the taming calculator for precise requirements at any level.

Breeding Rexs produces fertilized eggs that need incubation between 32°C and 34°C. Full maturation takes 3 days and 20 hours. Use the breeding calculator for imprint timers and food requirements.

Once tamed, the Rex can harvest Hide, Raw Meat, Raw Prime Meat. Visit the information tab for the full harvest table with quantities and efficiency data.

Found throughout the ARKs, the Rex is a tamable, carnivore creature in ARK: Survival Ascended. Classified under the DMG group.

With 1,100 base Health, the Rex is quite durable. With 100% base Melee Damage, the Rex has solid damage output. Stamina sits at 420 base, providing solid stamina reserves. Weight capacity starts at 500, giving it massive inventory space.

Taming the Rex requires rendering it unconscious first - use Tranq Arrows, Darts, or Shocking Tranq Darts to apply torpor. Feed it Exceptional Kibble for the fastest tame and highest effectiveness bonus.

After taming, the Rex is valued for its harvesting efficiency, collecting key resources faster than most tools. It reproduces by laying eggs, which must be incubated between 32°C and 34°C. Defeating one in the wild grants 30 base XP. It can be cloned at a Cloning Chamber for 0.87 Element plus 0.01 Element per level.

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