Bite / Tail Swipe
Bite or sweep the tail according to camera direction.
- LMBnot aiming a torpedo
Base damage75
- Thatch412.5
- Wood225
- Stone-
- Metal-
- Tek-
CreatureWater

The Shastasaurus is a large aquatic carnivore that inhabits the open ocean. It possesses a unique passive taming mechanic involving leech removal and baiting with tamed Ichthyosaurus. Once tamed, it excels as a mobile underwater transport and combat mount. It can be airlifted by Quetzal or Karkinos for fast deployment.
This creature is frequently used for deep-sea exploration and hunting due to its agility and combat abilities in water.
| Stat | Base | Wild +/lvl | Tamed +/lvl | Wild growth |
|---|---|---|---|---|
| Health | 4500 | +540 | +3.5% | |
| Stamina | 300 | +30 | +2% | |
| Torpidity | 3000 | +180 | +0% | |
| Oxygen | 150 | +15 | - | |
| Food | 8000 | +800 | +2% | |
| Weight | 3000 | +60 | +0.8% | |
| Melee damage | 100% | +5% | +10% | |
| Movement speed | 100% | +0% | +0.5% |
Shastasaurus passive taming uses nearby, conscious adult Ichthyosaurus from the player's team that are neither carried nor immobilized. Clearing all active leeches with a sickle opens a feeding window; feeding closes it and stops the Shastasaurus following the player.
Taming a Shastasaurus requires the Special Passive method. Lure it to the surface using 1-3 tamed Ichthyosaurus as bait. Dive beneath it and use a Sickle to remove three leeches from its belly. Feed it Extraordinary Kibble or Raw Prime Fish Meat at its mouth. Repeat the cycle until taming completes. More Ichthyosaurus nearby extend the time it stays surfaced. Taming takes about 20 minutes. Use the calculator below for your settings.
| Food | Affinity | Food value |
|---|---|---|
| 400 | 85.2 | |
| 187.5 | 50 | |
| 101.25 | 49.9 | |
| 60 | 25 | |
| 30 | 25.7 | |
| 20 | 25 | |
| 10 | 12.5 |

Bite or sweep the tail according to camera direction.
Base damage75
Default PC controls. Custom keybindings may differ.
Shastasaurus has recorded spawns on 10 maps: The Center, Astraeos, Genesis Ocean, Althemia, Appalachia, Atlantis and 4 more.
Compare recorded corpse resource yields by harvesting tool.
| Resource | ||
|---|---|---|
| ~8240% · ~63 hits | ~12360% · ~50 hits | |
| ~44% · ~63 hits | ~44% · ~50 hits |
Each harvest event rolls resources independently. Actual yields vary.
Killing a Shastasaurus yields Hide and Raw Prime Meat. The Hatchet yields the most Hide, while the best tool for Raw Prime Meat is not specified.
BreaksThatchWoodStoneMetalTek
Base damage75
ResistsWeak to
HitboxesHead ×1.5
Base damage at level 1, 100% taming effectiveness, no imprint. Open damage calculator
Shastasaurus takes +400% damage from Spike Wall attacks, making it extremely vulnerable to defensive perimeters. It also takes +120% from Instant HurtDinos and +55% from Melee DmgMetal RaidDino. It is 100% resistant to Mining Drill Harvest damage. Focus on Health and Melee Damage for combat effectiveness.
The head of the Shastasaurus has a damage multiplier of 1.5x, making headshots more effective for knocking it out. All other body zones have standard damage resistance.
Can break Thatch and Wood. Build at least in Stone.
Base XP per kill: 15
Per kill
1,193 XP15 base × 15.9 level × 4 × 1.25× wild × 1× server
Base 462 XP · Level 100
Base × 1× quality × 4 × 1× server
This page details the Shastasaurus's taming, breeding, harvesting, and combat statistics. For precise calculations, refer to the taming calculator, breeding timer, and spawn map located below.