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Disambig.png This article is about Pachy Icon.png Pachy, not to be confused with Pachyrhinosaurus.png Pachyrhinosaurus

These values may differ with what you see in-game or written elsewhere. But that is what the dossier says.
Common Name
Pachycephalosaurus leniproelia
Time Period
Late Cretaceous
Logo Steam.png 207.0
September 11, 2015
Logo Xbox One.svg 729.0
December 16, 2015
Logo PS4.svg 501.0
December 6, 2016
Spawn Command
admincheat summon Pachy_Character_BP_C
admincheat SpawnDino "Blueprint'/Game/PrimalEarth/Dinos/Pachy/Pachy_Character_BP.Pachy_Character_BP'" 500 0 0 35
XP For Kill
4 XP
Feces Size
24 - 28 °C / 75 - 82 °F
Incubation Time
1h 25m
Baby Time
2h 38m
Juvenile Time
10h 34m
Adolescent Time
13h 13m
Total Maturation Time
1d 2h 27m 17s
Breeding Interval
18h - 2d

This creature is missing habitat information.
You can help by finding its map locations in-game and updating them
 Very Common
For a more exact spawn map, see Spawn Map (The Island)

This creature is missing habitat information.
You can help by finding its map locations in-game and updating them
For a more exact spawn map, see Spawn Map (The Center)

The Pachycephalosaurus(pak-ee-SEF-uh-lo-SAWR-us), or simply Pachy, is one of the dinosaurs in ARK: Survival Evolved.

Basic Info[edit | edit source]

Dossier[edit | edit source]

This dossier section is intended to be an exact copy of what the survivor Helena, the author of the dossiers has written. There may be some discrepancies between this text and the in-game creatures.


Pachycephalosaurus is a bit of a conundrum. It is a very passive (even friendly) herbivore, common to much of the Island. At the same time, it is one of the most dangerous herbivores that I have yet encountered on the Island. Its charging headbutt is a display of sheer physical power, and can kill much more quickly than you might think.

While Pachycephalosaurus is generally friendly, it has a short temper. Its fight-or-flight response always seems to choose "fight!"

The Pachy becomes extremely aggressive once attacked.

Additionally, it is an incredibly fast sprinter, so escaping from an enraged Pachy is very difficult.


Pachycephalosaurus is an excellent battle-mount for those who want to ride a smaller, nimble combatant into the fray. Because of its particular musculature, it cannot effectively carry large quantities of resources. It can, however, move with brief magnificent bursts of speed, and its headbutt is simply devastating.

~ Helena

Behavior[edit | edit source]

The Pachy is passive unless provoked. They are rather slow when moving normally, but move very quickly when using their charge attack.

Appearance[edit | edit source]

Standing at a man's shoulder height and estimated at 4.5m long, this bipedal dinosaur possesses a thick bony dome on the skull and a beak for browsing vegetation.

Color Scheme and Regions

This section displays the Pachy's natural colors and regions. For demonstration, the regions below are colored red over an albino Pachy. The colored squares shown underneath each region's description are the colors that the Pachy will randomly spawn with to provide an overall range of its natural color scheme. Hover your cursor over a color to display its name and ID.

Server admins can use this region information in the Console Command "cheat SetTargetDinoColor <ColorRegion> <ColorID>".
For example, "cheat SetTargetDinoColor 0 6" would color the Pachy's "body" magenta.

Pachy PaintRegion0.jpg
Region 0:
X mark.svg

Region 1 is not used
for this Creature.

X mark.svg

Region 2 is not used
for this Creature.

Pachy PaintRegion3.jpg
Region 3:
Spikes and Claws
Pachy PaintRegion4.jpg
Region 4:
Beak and Plates
Pachy PaintRegion5.jpg
Region 5:
Body Accent

Drops[edit | edit source]

Base Stats and Growth[edit | edit source]

Note that creatures will have different stats in Survival of the Fittest

Basic Stats
Attribute Amount at Level 1 Increase per point Taming Bonus
Wild Domesticated1 Add Mult
Health.png Health 175 +35 +5.4% 0.07
Stamina.png Stamina 150 +15 +10%
Oxygen.png Oxygen 150 +15 +10%
Food.png Food 1200 +120 +10%
Weight.png Weight 150 +3 +4%
Melee Damage.png Melee Damage 102 +0.5 +1.7% 7% 17.6%
Movement Speed.png Movement Speed 100% N/A3 +3% 20%
Torpor.png Torpor 160 +9.6 N/A4 0.5

1Percentages are based on the value of the stat the moment the creature was tamed (after taming effectiveness)
2The absolute Base Damage is shown here instead of the percentage.
3Wild creatures do not level up movement speed
4Torpor increases every level on wild creatures, but can not be increased once they are tamed.

Movement Speed
Movement Type Base Speed Sprinting Stamina Used
Wild Domesticated
Walking 200 546 519 6
Swimming 300 N/A N/A N/A
Attack Effects
Attack Type Effect Description
Main Attack Tranquilized.png Tranquilized The target's Torpor.png Torpor will increase by an amount equal the damage dealt over 10 seconds. This effect stacks.
Charge Attack Tranquilized.png Tranquilized The target's Torpor.png Torpor will increase by 3.5x the damage dealt over 10 seconds. This effect stacks.
Attack Values
Melee Stamina Cost Attack Range Description
Base Minimum Activation Using the Left Mousebutton (PC), R2 Button (PS4), RT Button (Xbox One), the Pachy headbutts the target. The target's Torpor.png Torpor will increase by an amount equal to the damage dealt over 10 seconds. This effects stacks with each hit from a wild Pachy, however attacks from a tamed Pachy stacks up to two times for a maximum of 20 seconds torpor debuff.
0 300 0 0
Attack Type Damage Projectile Values Torpor Values Status Effect: Stamina Status Effect: Torpidity
Life Impulse Radius Base Mult Duration Damage Mult Amount Duration Damage Mult Amount
Melee 10 10 1

Wild Stats Level-up

Type in values of a wild creature to see on which stats it's emphasized. Green values on a high-level creature are very good for breeding. If you have already tamed your creature you can try to recover the breeding-stats with an external tool.[1]

The stat-calculator does not work in the mobile-view, see here for alternatives: Apps

Note that after the creature is tamed it gets bonuses on some stats depending on the taming effectiveness. This makes it hard to retrieve the levels on a tamed creature, so this tool is only for wild ones, but gives a first impression, how well the stats are distributed.

Taming[edit | edit source]

Pachy Icon.png Level 1 Narcoberry Narcotic Bio Toxin Time
Kibble (Dilo Egg).png Kibble (Dilo Egg) 2 0 0 0 0:02:40
Advanced Crops.png Vegetables 16 2 1 1 0:10:41
Mejoberry.png Mejoberry 21 2 1 1 0:10:31
Berries.png Berries 32 2 1 1 0:10:40
KO: Wooden Club Hits × 16; Slingshot Hits × 7; Tranquilizer Arrows with a Bow × 2; Tranquilizer Arrows with a Crossbow × 2; Tranquilizer Dart Shots × 1; Shocking Tranquilizer Dart Shots × 1
Torpor-depletion: 0.27 / s, Time until all torpor is depleted: 00:10:00
Pachy Icon.png Level 30 Narcoberry Narcotic Bio Toxin Time
Kibble (Dilo Egg).png Kibble (Dilo Egg) 4 0 0 0 0:05:20
Advanced Crops.png Vegetables 38 27 6 3 0:25:21
Mejoberry.png Mejoberry 50 26 6 3 0:25:01
Berries.png Berries 75 26 6 3 0:25:00
KO: Wooden Club Hits × 44; Slingshot Hits × 18; Tranquilizer Arrows with a Bow × 5; Tranquilizer Arrows with a Crossbow × 3; Tranquilizer Dart Shots × 2; Shocking Tranquilizer Dart Shots × 1
Torpor-depletion: 0.45 / s, Time until all torpor is depleted: 00:16:29
Pachy Icon.png Level 60 Narcoberry Narcotic Bio Toxin Time
Kibble (Dilo Egg).png Kibble (Dilo Egg) 6 0 0 0 0:08:00
Advanced Crops.png Vegetables 60 72 15 8 0:40:01
Mejoberry.png Mejoberry 80 72 15 8 0:40:01
Berries.png Berries 120 72 15 8 0:40:00
KO: Wooden Club Hits × 73; Slingshot Hits × 30; Tranquilizer Arrows with a Bow × 9; Tranquilizer Arrows with a Crossbow × 5; Tranquilizer Dart Shots × 4; Shocking Tranquilizer Dart Shots × 2
Torpor-depletion: 0.58 / s, Time until all torpor is depleted: 00:20:57
Pachy Icon.png Level 90 Narcoberry Narcotic Bio Toxin Time
Kibble (Dilo Egg).png Kibble (Dilo Egg) 9 0 0 0 0:12:00
Advanced Crops.png Vegetables 83 137 29 15 0:55:21
Mejoberry.png Mejoberry 110 135 29 15 0:55:01
Berries.png Berries 165 135 29 15 0:55:00
KO: Wooden Club Hits × 102; Slingshot Hits × 42; Tranquilizer Arrows with a Bow × 12; Tranquilizer Arrows with a Crossbow × 7; Tranquilizer Dart Shots × 5; Shocking Tranquilizer Dart Shots × 3
Torpor-depletion: 0.7 / s, Time until all torpor is depleted: 00:24:11
Pachy Icon.png Level 120 Narcoberry Narcotic Bio Toxin Time
Kibble (Dilo Egg).png Kibble (Dilo Egg) 11 0 0 0 0:14:40
Advanced Crops.png Vegetables 105 213 46 23 1:10:01
Mejoberry.png Mejoberry 140 213 46 23 1:10:01
Berries.png Berries 210 213 46 23 1:10:00
KO: Wooden Club Hits × 131; Slingshot Hits × 54; Tranquilizer Arrows with a Bow × 15; Tranquilizer Arrows with a Crossbow × 9; Tranquilizer Dart Shots × 6; Shocking Tranquilizer Dart Shots × 3
Torpor-depletion: 0.82 / s, Time until all torpor is depleted: 00:26:43
Pachy Icon.png Level 150 Narcoberry Narcotic Bio Toxin Time
Kibble (Dilo Egg).png Kibble (Dilo Egg) 13 0 0 0 0:17:20
Advanced Crops.png Vegetables 128 305 66 33 1:25:21
Mejoberry.png Mejoberry 170 303 66 33 1:25:01
Berries.png Berries 255 303 66 33 1:25:00
KO: Wooden Club Hits × 160; Slingshot Hits × 65; Tranquilizer Arrows with a Bow × 18; Tranquilizer Arrows with a Crossbow × 11; Tranquilizer Dart Shots × 8; Shocking Tranquilizer Dart Shots × 4
Torpor-depletion: 0.92 / s, Time until all torpor is depleted: 00:28:48

Note that the values are for optimal cases, always bring extra supplies!
For a level-dependent count of resources needed, try an external taming calculator.

Ingredients for Kibble (Dilo Egg).png Kibble (Dilo Egg): 1 × Dilo Egg.png Dilo Egg , 1 × Citronal.png Citronal , 1 × Cooked Meat Jerky.png Cooked Meat Jerky , 2 × Mejoberry.png Mejoberry , 3 × Fiber.png Fiber , 1 × Water.png Water

KO Strategy[edit | edit source]

While the Pachy does not have a lot of Topor, attacks on the head are nearly useless due to the headplate. If possible attacks should be focused on the body rather than the head. Thus having Pachy charge at you is a very dangerous situation. Luckily it is vulnerable to the Bola, making stopping it and flanking it with a Wooden Club easy.

Combat[edit | edit source]

This section describes how to fight against the Pachy.

General[edit | edit source]

The head of the Pachy reduces incoming damage by 87.5% and the rest of the body takes only normal damage. It is advised to kill or down(for taming) a Pachy before it closes distance with arrows or gunfire.

Strategy[edit | edit source]

Perching upon a stone whilst shooting at it with a bow/gun is a valid strategy, however, Pachys are commonly found in places where carnivores live. Therefore, climbing onto the rock might be dangerous. Once the Pachy reaches the player, it will headbutt the player relentlessly. During this process, it is difficult for the player to not hit the bony helmet on the Pachy's head, which causes a problem when fighting back.

Weaponry[edit | edit source]

Long ranged weapons and potentially a Pike can do the trick, as melee battles will subject the player to damage. A powerful mount can almost effortlessly kill a Pachy with a couple, or in some instances, a single chomp.

Dangers[edit | edit source]

The Pachy lowers their head in front of their body when attacking, giving themselves a damage-reducing shield. The attacks of the Pachy raise the target's torpor, potentially knocking it unconscious. Attempt to take care of the Pachy before the battle becomes physical, as many players, especially those of lower levels will be unprepared. Always keep an eye out for other Pachys in the area, or more dangerous animals. A casual Pachy-taming adventure can turn into a bloodbath if the players fail to stop a Carno or Rex from entering unnoticed. There is not much that can be done once larger predators arrive, only massive loss of life between helpful players and beloved animals.

Weakness[edit | edit source]

The Pachy has relatively little health. Try to override the damage output by a volley of arrows or bullets, or a powerful mount. If you ride a Beelzebufo into battle, use its tongue to knock it out and then simply kill it or tame it.

Utility[edit | edit source]

Roles[edit | edit source]

  • Knocking-out: Both the Charge and Non-Charge attack increases a targets Torpor when hit. The induced torpor by the charged attack even gets a bonus of 3.5 to the already increased attack damage multiplicator of 1.7 compared to the regular attack, resulting in a 5.95 higher induced Torpor. Increases in a Pachy's damage will make for a more effective, and quicker, knock-out. If you use the Charge attack to assist in the process, increases in Melee Damage and Stamina will make for more efficiency. Speed does not influence the induced Torpor.
  • Damage: Increases in Speed and Damage will make the Pachy a battering ram that can knock down Wooden buildings easily and knock out wild animals. More effective in groups with Mate Boost. Currently there seems to be a problem with Pachys damaging wooden structures. While easily smashing thatch, a Pachy does not deal any damage to wooden structures (Level Health and Melee Damage, with some Stamina).
  • War-Horse: Similar to Damage, the Pachy's Charge Attack is extremely efficient at damaging buildings especially in groups with Mate Boosts. Increases in Damage and Speed are required. The faster a Pachy is moving when it hits its target will increase the damage it gives out (Level Health and Melee Damage, with some Stamina).
  • Travel: Pachy's Charge Attack can bring them up to extremely high speeds, but they are easy to stop (by land or pack attacks) and they are unable to turn during this. Increases in Stamina and Speed will give you a swift steed.

Collectibles[edit | edit source]

Resource Efficiency
Thatch.png Thatch ★★☆☆☆
Wood.png Wood ★☆☆☆☆

Spotlight[edit | edit source]

Notes/Trivia[edit | edit source]

For information pertaining specifically to the real-world Pachy, see the relevant Wikipedia article

  • First revealed on 06/14/2015.[2]
  • Dino Dossier revealed on 07/02/2015.[3]
  • Pachycephalosaurus, in real life, stood at 1.8 meters and was 4 meters long.
  • The Pachy can be picked up by an Argentavis.
  • Despite being slightly smaller than the player, the Pachy cannot fit through ordinary doorways or be picked up by a Pteranodon.

Gallery[edit | edit source]

References[edit | edit source]