X-Mosasaurus
Variant
Overview
The X-Mosasaurus is a carnivorous aquatic variant of the Mosasaurus, modified with increased melee damage and reduced health. It excels in underwater combat and structural destruction, making it a potent raiding mount in aquatic environments. Players typically tame it for its enhanced damage output in water-based assaults.
It can be airlifted by Quetzal or Karkinos for fast deployment to remote oceanic locations.
Spawn Locations
X-Mosasaurus does not currently spawn on any ARK: Survival Ascended map, or spawn data is not yet available.
Taming the X-Mosasaurus requires a knockout method. Use a Bow with Tranq Arrows or a Longneck Rifle with Tranquilizer Darts to sedate it. Exceptional Kibble is the best taming food.
About 46 units of Exceptional Kibble are needed. The process takes around 73 minutes and requires approximately 434 Narcotics. Use the calculator below for your settings.
| Food | Qty | Time | Effectiveness |
|---|---|---|---|
 Exceptional KibbleBest | 46 | 1:12:38 | 74 Lvl (224) |
 Raw Mutton | 135 | 2:05:00 | 74 Lvl (224) |
 Raw Prime Meat | 169 | 2:36:29 | 73 Lvl (223) |
 Cooked Lamb Chop | 250 | 3:51:14 | 72 Lvl (222) |
 Raw Meat | 505 | 7:47:36 | 65 Lvl (215) |
| +6 more in calculator→ | |||
Drops & Harvest Resources
Killing an X-Mosasaurus yields Hide and Raw Prime Meat. The Hatchet yields the most Hide, while no specific tool is optimal for maximizing Raw Prime Meat harvest.
| Resource |  Pick |  Hatchet |
|---|---|---|
| 40%~82~63 hits | 60%~123~50 hits | |
| 4%~4~63 hits | 4%~4~50 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
The X-Mosasaurus takes +400% more damage from spike walls, making it highly vulnerable in defensive perimeters. It also suffers +120% more damage from instant hurt sources and +55% more from metal melee attacks. Avoid placing it near spike-based defenses.
Kill XP
Wild Kill (1.25×)15 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 | 3492.0 | +419.04 | +3.50% |
 Stamina | 400.0 | +40.00 | +2.00% |
 Torpidity | 3000.0 | +180.00 | +0.00% |
 Food | 8000.0 | +800.00 | +2.00% |
 Weight | 1300.0 | +26.00 | +0.80% |
 Melee Damage Multiplier | 105.0% | +5.25% | +10.00% |
 Speed Multiplier | 100.0% | +0.00% | +0.50% |
Hitbox Multipliers
The head has a damage multiplier of 1.5x, making headshots effective for faster knockout. Other body zones do not have listed multipliers.
Can Damage
Can damage Thatch and Wood structures. Build at least in Stone to resist its attacks.
Thatch
Wood
Stone
Metal
Tek| Attack | Base | Thatch | Wood | Stone | Metal | Tek |
|---|---|---|---|---|---|---|
| Attack 1Carnivore Large | 100 | 550.0 | 300.0 | — | — | — |
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
X-Mosasaurus Tips & Tricks
The X-Mosasaurus takes +400% more damage from spike walls, making it extremely vulnerable in base defenses.
It is weak to +120% instant damage sources, such as certain environmental hazards or targeted abilities.
Its melee damage is 5% higher than the base Mosasaurus, enhancing its combat effectiveness.
It has 3% less health than the standard Mosasaurus, reducing its survivability in prolonged fights.
It can be carried by Quetzal or Karkinos, enabling rapid aerial transport.
This page details the X-Mosasaurus's stats, taming requirements, breeding duration, harvest drops, and combat data. For precise planning, refer to the taming calculator, breeding calculator, and spawn map tools available on the site.