Basilosaurus
Soaker · 19 maps
Overview
The Basilosaurus is a large aquatic carnivore used primarily for soaking. It reduces the weight of resources carried in its inventory, making it efficient for underwater salvage operations. This creature excels at transporting heavy harvests from ocean floors back to bases. It can be airlifted by Quetzal or Karkinos for fast deployment.
Spawn Locations
19 mapsBasilosaurus spawns in ocean biomes across 19 ARK maps. It is considered uncommon, so sightings are infrequent. Focus your search in open water zones away from coastlines for the best chances of encountering one.
Each shape is a real spawn volume. Click for exact chance and zone info.
Basilosaurus is tamed passively by feeding it. The best food is Exceptional Kibble, which provides the fastest taming speed. Raw Mutton also works if kibble is unavailable. About 14 units of Exceptional Kibble are needed. The process takes around 18 minutes and requires approximately 81 Narcotics to maintain sedation. Use the calculator below for your settings.
| Food | Qty | Time | Effectiveness |
|---|---|---|---|
 Exceptional KibbleBest | 14 | 18:01 | 74 Lvl (224) |
 Raw Mutton | 37 | 4:53 | 69 Lvl (219) |
 Raw Prime Meat | 46 | 6:06 | 66 Lvl (216) |
 Cooked Lamb Chop | 69 | 9:13 | 59 Lvl (209) |
 Raw Meat | 138 | 18:34 | 35 Lvl (185) |
| +6 more in calculator→ | |||
Drops & Harvest Resources
Killing a Basilosaurus yields Basilosaurus Blubber, Hide, Raw Prime Meat, and Oil. The Hatchet is the best tool for harvesting Hide, while other resources are best gathered with standard tools.
| Resource |  Pick |  Hatchet |
|---|---|---|
| 40%~90~69 hits | 60%~135~55 hits | |
| 6%~7~69 hits | 6%~7~55 hits | |
| 40%~90~69 hits | 40%~90~55 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
Basilosaurus has a strong vulnerability to spike walls, taking +400% more damage, making it highly susceptible in defensive perimeters. It also takes +120% more damage from Instant HurtDinos and +55% more from Melee Dino Carnivore Small Electrocute. Conversely, it is fully resistant to Mining Drill Harvest and Melee Dino Carnivore Small Electrocute damage. Level Health and Melee Damage.
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.
| Stat | Base (Lv.1) | Wild +/Lv | Tamed +/Lv |
|---|---|---|---|
 Health | 2400.0 | +480.00 | +3.60% |
 Stamina | 300.0 | +30.00 | +2.00% |
 Torpidity | 2000.0 | +120.00 | +0.00% |
 Food | 8000.0 | +800.00 | +2.00% |
 Weight | 700.0 | +14.00 | +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 it the optimal target zone for faster knockouts. Focus attacks on the head when sedating. No other body zones have modified damage multipliers.
Can Damage
Can break Thatch and Wood. Build at least in Stone.
Thatch
Wood
Stone
Metal
Tek| Attack | Base | Thatch | Wood | Stone | Metal | Tek |
|---|---|---|---|---|---|---|
| lungeCarnivore Large | 47 | 258.5 | 141.0 | — | — | — |
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
Basilosaurus Tips & Tricks
The Basilosaurus takes +400% more damage from spike walls, making it extremely vulnerable in base defenses using them.
It is fully immune to damage from Mining Drill Harvest, rendering such tools ineffective against it.
Due to its passive taming method, it can be fed without knocking it out, avoiding torpor management entirely.
Its weight reduction on Oil and Basilosaurus Blubber makes it ideal for deep-sea oil farming runs.
This page details the Basilosaurus's taming, breeding, harvesting, and combat statistics. For precise planning, refer to the taming calculator, breeding calculator, and spawn map located on this page.