Lost Yutyrannus
Lost Yutyrannus Overview
Survivors looking at Lost Yutyrannus in ARK: Survival Ascended will find a land-based carnivore that cannot be tamed and must be dealt with through combat or avoidance. Untamable in the traditional sense, Lost Yutyrannus fields 500 base Weight, providing excellent carrying capacity when survivors meet it in the wild. Reproduction is by live birth following gestation; juveniles mature at a glacially slow pace - plan for a multi-day commitment. Survivors lean on it to gather Pelt, Raw Meat, Raw Prime Meat at much higher rates than hand tools. Treat encounters with situational awareness rather than taming intent.
Spawn Locations
Lost Yutyrannus does not currently spawn on any ARK: Survival Ascended map, or spawn data is not yet available.
Taming
Lost Yutyrannus is not tamable.
Breeding
Open Calculator →Quick Info
Yutyrannus SaddleLv.80
XP Calculator
Full Calculator→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.
Drops & Harvest Resources
You can gather Pelt, Raw Meat, Raw Prime Meat from a Lost Yutyrannus corpse. The corpse has 520 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 |  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
Incoming damage to the Lost Yutyrannus is modified by 14 different type-specific multipliers. It shrugs off 7 damage types but is weak to 6, with its worst vulnerability at +400%. Focus damage there for maximum efficiency. See the full breakdown in the table below. Values under 100% indicate resistance, above 100% indicate weakness.
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 | +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 Lost Yutyrannus has 1 hitbox zone, each with a different damage multiplier. Its weakest point is the Head at 1.5x - a significant damage bonus when you land your shots there.
Can Damage
Open damage calculator →The Lost Yutyrannus can damage: Thatch, Wood. Lower-tier structures are at risk - Stone walls or better will keep the Lost Yutyrannus out.
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
Check out what other players have learned about the Lost Yutyrannus - and contribute your own tips.
This page is your complete guide to the Lost Yutyrannus in ARK: Survival Ascended. Below you'll find a quick overview of its base stats, taming method, breeding data, and harvest capabilities - plus links to dedicated tools like the taming calculator, breeding calculator, and interactive spawn map.
At base level the Lost Yutyrannus has 1,100 base Health, 100% base Melee Damage, 500 base Weight. Use the taming calculator to project how these stats grow through wild levels and taming effectiveness.
The Lost Yutyrannus gives live birth after a gestation period. Babies mature in 7 days and 17 hours. Check the breeding calculator for detailed imprint schedules and raising costs.
Once tamed, the Lost Yutyrannus can harvest Pelt, Raw Meat, Raw Prime Meat. Visit the information tab for the full harvest table with quantities and efficiency data.