Alpha Mosasaur
CreatureVariant
- Kill XP
- 1,600
- Taming
- Not tamable
Overview
The Alpha Mosasaur is a massive aquatic carnivore found in the depths of ARK's oceans. It cannot be tamed by survivors, existing as a powerful wild predator with no taming mechanics. Its presence poses a severe threat to underwater structures and nearby creatures, often attacking on sight due to its aggressive nature.
It can damage Thatch and Wood structures, making it a hazard in shallow coastal bases.
Base statsLevel 1 values and gain per level
| Stat | Base | Wild +/lvl | Tamed +/lvl | Wild growth |
|---|---|---|---|---|
| Health | 54000 | +6480 | +3.5% | |
| Stamina | 400 | +40 | +2% | |
| Torpidity | 3000 | +180 | +0% | |
| Oxygen | 150 | +15 | - | |
| Food | 8000 | +800 | +2% | |
| Weight | 1300 | +26 | +0.8% | |
| Melee damage | 100% | +5% | +10% | |
| Movement speed | 100% | +0% | +0.5% |
TamingOpen calculator
Alpha Mosasaur cannot be tamed.
Drops and interactions
Drops
Harvest yields by tool
Drops & harvest resources
Compare recorded corpse resource yields by harvesting tool.
SettingsHarvest body HP 4,000 · Player melee % 100 · Weapon damage % 100 · Harvest rate × 1
| Resource |  Pick |  Hatchet |
|---|---|---|
 Hide | ~16440% · ~125 hits | ~24660% · ~100 hits |
 Raw Prime Meat | ~84% · ~125 hits | ~84% · ~100 hits |
Each harvest event rolls resources independently. Actual yields vary.
Killing an Alpha Mosasaur yields Alpha Mosasaur Tooth as a unique drop. The corpse also provides Hide and Raw Prime Meat when harvested. The Hatchet yields the most Hide, while Raw Prime Meat harvest quantity is not affected by tool choice.
Combat & abilities
Attacks and abilities
BreaksThatchWoodStoneMetalTek
- Primary attack
Base damage200
- Thatch1,100
- Wood600
- Stone-
- Metal-
- Tek-
Damage taken
ResistsWeak to
Weapons
- Mining DrillImmune
- Stone weapons-34%
- Player melee-20%
- Piercing projectiles+40%
- Anti-creature damage+120%
Explosives
- Demolition explosives+50%
Creatures
- Creature attacks-50%
- Herbivore attacks-40%
- Strong creature attacks+50%
- Raid creature attacks+55%
Environment & other
- Plant Species X-50%
- Environmental damage-30%
- Spike Wall+400%
HitboxesHead ×1.5
Base damage at level 1, 100% taming effectiveness, no imprint. Open damage calculator
Combat notes
The Alpha Mosasaur takes +400% more damage from spike walls, making them extremely effective for defense. It also suffers +120% damage from Instant HurtDinos and +55% from Melee DmgMetal RaidDino attacks. Conversely, it has -100% damage taken from Mining Drill Harvest and -50% from Melee WithProjectileImpactFX and Ranged Turret Small DefensePlant.
The head of the Alpha Mosasaur has a damage multiplier of 1.5x, making it the optimal target zone for maximum damage output. All other body zones take standard damage.
Can break Thatch and Wood. Build at least in Stone.
ExperienceBase XP per kill: 1600
Alpha Mosasaur kill XP
Base XP per kill: 1,600
Per kill
135,341 XP1,600 base × 15.9 level × 4 × 1.33× alpha × 1× server
Server XP settings1× · wild 1.25 · alpha 1.33 · boss 5 · cave 1.33
Tips
- The Alpha Mosasaur takes 400% more damage from spike walls, making them ideal for coastal defenses.
- It is highly vulnerable to explosion-based damage, taking 50% more from demolition sources.
- Melee attacks with metal properties deal 55% more damage, useful for raiders using metal weapons.
- It is immune to mining drill-based damage, rendering such tools ineffective.
This page details the Alpha Mosasaur's stats, damage modifiers, harvest drops, and structural threats. For further data, refer to the taming calculator, breeding calculator, and spawn map tools available on the site.