Lost Yutyrannus
Variant
Overview
The Lost Yutyrannus is a carnivorous variant creature. It possesses the unique ability to emit a Fear roar that affects large dinosaurs, disrupting enemy formations. It can be airlifted by Tusoteuthis for strategic deployment in combat zones.
This dinosaur is primarily used for its battlefield control through aura effects, making it valuable in PvP or boss fights where psychological disruption matters.
Spawn Locations
Lost Yutyrannus does not currently spawn on any ARK: Survival Ascended map, or spawn data is not yet available.
Taming
The Lost Yutyrannus cannot be tamed.
Lost Yutyrannus is not tamable.
Drops & Harvest Resources
Killing the Lost Yutyrannus yields Yutyrannus Lungs, Pelt, Raw Meat, and Raw Prime Meat. The Hatchet is the best tool for gathering Pelt, while the Pick maximizes Raw Meat and the Dino (Prime) tool is optimal for Raw Prime Meat.
| Resource |  Pick |  Hatchet |
|---|---|---|
| 40%~27~17 hits | 60%~40~13 hits | |
| 60%~24~17 hits | 40%~16~13 hits | |
| 3%~1~17 hits | 2%~1~13 hits | |
 Yutyrannus LungsDrop | - | - |
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 Lost Yutyrannus has a +400% vulnerability to spike walls, making them extremely effective against it. It also takes +120% damage from instant-damage sources and +55% more from metal melee attacks. Conversely, it is fully immune to mining drill damage and takes 50% less from projectile-based melee attacks and small 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.
| 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 damage multiplier of 1.5x, making headshots more effective for faster knockouts. Target the head when immobilizing this creature.
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 Large | 55 | 302.5 | 165.0 | — | — | — |
| FearCarnivore Large YutyRoar | 1 | 5.5 | 3.0 | — | — | — |
| CourageCarnivore Large YutyRoar | 1 | 5.5 | 3.0 | — | — | — |
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
Lost Yutyrannus Tips & Tricks
The Fear & Courage Roar ability affects large dinosaurs and lasts 20 seconds, providing battlefield control. The passive Fear/Courage aura influences enemies continuously, disrupting nearby hostile creatures. Its Leader of the Wild aura allows it to command up to 2 followers for 60 seconds. The Lost Yutyrannus can be carried by Tusoteuthis, enabling mobile deployment.
This page details the Lost Yutyrannus's stats, combat behavior, harvest drops, and special abilities. For further planning, refer to the taming and breeding calculators and the spawn map.