Alpha Rex
Meat Icon ARK
Dinosaur Icon ARK
VARIANT

Alpha Rex

Spawn Command
Alpha Rex Dossier
Information
Base Settings
Map

Spawn Locations

Alpha Rex does not currently spawn on any ARK: Survival Ascended map, or spawn data is not yet available.

Taming

Alpha Rex is not tamable.

TypeLive Birth
Maturation Time3d 20h

Quick Info

Immobilized By
Chain BolaChain Bola

XP Calculator

Full Calculator

Kill XP

Alpha Kill (1.33×)
Per Kill74,860 XP

885 base × 15.9 level × 4 × 1.33× alpha kill × 1× server

Server Settings(Game.ini)

Official servers use non-1× defaults; the values above already reflect official rates.

Saddle Crafting XP

Rex Saddle
Rex SaddleBase: 86 XP · Lv.74
344 XP
Rex Tek Saddle344 XP

Base × 1× quality × 4 × 1× server

Drops & Harvest Resources

The Alpha Rex's corpse can be harvested for Hide, Raw Prime Meat. The corpse has 1,500 harvest health, allowing multiple hits before it's fully depleted.

The harvest table below breaks down exact yields per tool. Choose your tool based on which resource you're after - yields vary significantly.

%
%
Resource
PickPick
HatchetHatchet
40%~62~47 hits60%~92~38 hits
60%~69~47 hits40%~46~38 hits

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

Incoming damage to the Alpha Rex is modified by 14 different type-specific multipliers. It resists 7 damage types (up to 100% reduction) and is vulnerable to 6 (up to +400% incoming damage). 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
StatBase (Lv.1)Wild +/LvTamed +/Lv
HealthHealth
17500.0+3500.00+4.00%
StaminaStamina
420.0+42.00+2.00%
TorpidityTorpidity
1550.0+93.00+0.00%
OxygenOxygen
150.0+15.00+2.00%
FoodFood
3000.0+300.00+2.00%
WeightWeight
500.0+10.00+0.80%
Melee Damage MultiplierMelee Damage Multiplier
100.0%+5.00%+10.00%
Speed MultiplierSpeed Multiplier
100.0%+0.00%+1.00%

Hitbox Multipliers

Aiming matters - the Alpha Rex has 1 hitbox region with distinct damage modifiers. The Head is the most vulnerable spot at 1.5x damage - aim there for maximum DPS.

HeadCnt_Jaw_JNT_SKL
1.50x

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

ThatchThatch
WoodWood
StoneStone
MetalMetal
TekTek
AttackBaseThatchWoodStoneMetalTek
BiteCarnivore Rex170935.0510.0

Numbers reflect base melee at level 1, 100% TE, no imprint. The damage calculator lets you scale by melee %, server multipliers, and pick a specific structure for exact hit counts.

Tools & Guides

Alpha Rex Tips & Tricks

Read and share community tips for the Alpha Rex in ARK: Survival Ascended.