Alpha Rex
Variant
Overview
The Alpha Rex is a massive carnivorous variant of the Rex, infused with lightning energy and significantly more powerful than its base form. It excels in combat due to its heightened damage output and resilience, making it a fearsome dueling and raiding mount. Players typically tame it for high-level PVP engagements or to dominate boss fights where raw power is essential.
Spawn Locations
Alpha Rex does not currently spawn on any ARK: Survival Ascended map, or spawn data is not yet available.
Taming
The Alpha Rex cannot be tamed. It is a non-tamable boss variant encountered in specific encounters or events.
Alpha Rex is not tamable.
Drops & Harvest Resources
Killing an Alpha Rex yields Alpha Tyrannosaur Tooth, Alpha Rex Trophy, Rex Bone Helmet, Hide, and Raw Prime Meat. The Hatchet yields the most Hide, while the Pick maximizes Raw Prime Meat harvest.
| Resource |  Pick |  Hatchet |
|---|---|---|
| 40%~62~47 hits | 60%~92~38 hits | |
| 60%~69~47 hits | 40%~46~38 hits | |
| - | - | |
 Alpha Rex TrophyDrop | - | - |
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 Alpha Rex takes +400% more damage from spike walls, making it highly vulnerable to defensive traps. It is also weak to explosions and melee attacks from metal weapons, increasing its susceptibility in structured combat zones. It is completely immune to damage from mining drills. Focus on exploiting its spike wall weakness for efficient takedowns.
Kill XP
Alpha Kill (1.33×)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
Base × 1× quality × 4 × 1× server
| Stat | Base (Lv.1) | Wild +/Lv | Tamed +/Lv |
|---|---|---|---|
 Health | 17500.0 | +3500.00 | +4.00% |
 Stamina | 420.0 | +42.00 | +2.00% |
 Torpidity | 1550.0 | +93.00 | +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
The Alpha Rex has a head hitbox that takes 1.5× damage, making headshots more effective during combat. Focus fire on the head to maximize damage output and reduce engagement time.
Can Damage
Can break Thatch and Wood. Build at least in Stone.
Thatch
Wood
Stone
Metal
Tek| Attack | Base | Thatch | Wood | Stone | Metal | Tek |
|---|---|---|---|---|---|---|
| BiteCarnivore Rex | 170 | 935.0 | 510.0 | — | — | — |
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
The Alpha Rex takes +400% damage from spike walls. This makes it extremely vulnerable in fortified bases lined with traps.
It is weak to explosions, so rocket launchers and grenades are effective in open combat.
The Alpha Rex is immune to damage from mining drills, allowing it to safely pass through automated mining systems.
It deals 50% more damage with certain melee attacks that trigger impact effects, increasing its offensive potential in specific scenarios.
This page details the Alpha Rex's stats, damage modifiers, harvesting drops, and combat behavior. For encounter locations, check the spawn map. Combat and takedown strategies are covered for boss preparation.