Tek Rex
Variant · 1 map
Overview
The Tek Rex is a massive, technologically enhanced carnivore and a variant of the standard Rex. It possesses a powerful roar ability that stuns nearby enemies within a 75-degree cone, making it a dominant force in combat. This dino is primarily tamed for frontline assault roles where its high health and damage output are most effective. It can be airlifted by Tusoteuthis for rapid deployment.
The roar ability has a cooldown lockout mechanic, preventing reuse for 6 minutes after activation, so timing is critical in prolonged engagements.
Spawn Locations
1 mapsThe Tek Rex spawns exclusively in lunar biomes across 1 ARK map. It is classified as a rare spawn, meaning sightings are infrequent and require deliberate searching. Players should consult the in-game spawn map for precise location indicators, which highlight high-density zones.
Each shape is a real spawn volume. Click for exact chance and zone info.
Taming a Tek Rex requires knockout via sedation. The most effective food is Exceptional Kibble, which provides the fastest taming effectiveness. Raw Mutton also works if kibble is unavailable. Use Tranq Arrows from a Crossbow or Compound Bow for reliable sedation. Immobilize it with a Chain Bola or trap it using a Bear Trap.
The estimated taming takes around 58 minutes using 17 units of Exceptional Kibble with no narcotics required. Use the calculator below for your settings.
| 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→ | |||
Drops & Harvest Resources
Killing a Tek Rex yields Tyrannosaurus Arm, Rex Bone Helmet, Scrap Metal, Electronics, Oil, and Element Dust. The Pick is the best tool for maximizing yields of Scrap Metal, Electronics, Oil, and Element Dust.
| Resource |  Pick |  Hatchet |
|---|---|---|
| 60%~5~4 hits | 40%~4~3 hits | |
| 60%~5~4 hits | 40%~4~3 hits | |
| 60%~5~4 hits | 40%~4~3 hits | |
| 60%~5~4 hits | 40%~4~3 hits | |
| - | - | |
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 Tek Rex takes +400% damage from spike walls, making it extremely vulnerable to defensive traps of this type. It also suffers +120% damage from general direct attacks. Conversely, it is highly resistant to mining drill damage, taking -100% damage, rendering such tools ineffective. It takes -50% damage from melee attacks with impact effects and from small ranged turrets.
Kill XP
Wild Kill (1.25×)30 base × 15.9 level × 4 × 1.25× wild 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 | 1100.0 | +220.00 | +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 head has a 1.5× damage multiplier, making headshots more effective for faster knockout. Targeting the head is recommended during taming attempts.
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 | 62 | 341.0 | 186.0 | — | — | — |
| Bite (AI)Carnivore Rex | 62 | 341.0 | 186.0 | — | — | — |
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
Tek Rex Tips & Tricks
The Roar ability stuns enemies within a 35m range and a 75-degree cone for 4 seconds. Activation triggers a 6-minute cooldown lockout, preventing any use of the ability during that time.
It is highly vulnerable to spike wall damage, taking +400% damage, so avoid deploying it near such defenses.
The roar can be used strategically to interrupt enemy players or creatures during boss fights or sieges.
It takes -100% damage from mining drills, making it immune to damage from this source.
The Tek Rex can be carried by Tusoteuthis, allowing for aerial transport and surprise drops behind enemy lines.
This page details the Tek Rex's taming, breeding, harvesting, combat capabilities, and special abilities. For precise taming calculations, use the taming calculator. Breeding times and spawn locations are covered in their respective tools.