ARK: Survival Evolved Wiki

Steam 253.0
Dec 23, 2016
Xbox One 749.0
Jan 17, 2017
PS 503.0
Jan 18, 2017
Logo Mobile 2.0.06
Jul 8, 2019
Nintendo Switch 599.0
Nov 30, 2018
Epic Games 311.74
Jun 11, 2020
Stadia 678.15
Sep 1, 2021
Spawn Command
cheat summon Pegomastax_Character_BP_C
cheat SpawnDino "Blueprint'/Game/PrimalEarth/Dinos/Pegomastax/Pegomastax_Character_BP.Pegomastax_Character_BP'" 500 0 0 35
Variant Pegomastax (Gauntlet2)
cheat summon Pegomastax_Character_BP_STA_C
cheat SpawnDino "Blueprint'/Game/Genesis2/Missions/ModularMission/Gauntlet2/STA/Dinos/Pegomastax_Character_BP_STA.Pegomastax_Character_BP_STA'" 500 0 0 35
28 - 32 °C / 82 - 90 °F
Egg Incubator (Genesis Part 2) Egg Incubator: 30 °C / 86 °F
Incubation Time
1h 8m 10.582s
Baby Time
3h 5m 11.111s
Juvenile Time
12h 20m 44.444s
Adolescent Time
15h 25m 55.555s
Total Maturation Time
1d 6h 51m 51.109s
Breeding Interval
18h - 2d

The Pegomastax (peg-o-mas-taks) is one of the Creatures in ARK: Survival Evolved.

Basic Info[]


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


Pegomastax fructarator


Early Jurassic






Among the bottom of the island's dinosaur food chain is a small herbivore called Pegomastax fructarator. It is content to spend all day alone, gorging itself on far more food than you might reasonably expect for a creature of its tiny stature. Its beak appears perfectly evolved for collecting food from plants while avoiding the indigestible fibrous strands. Pegomastax is likely to ignore any nearby creature and continue foraging, unless it is attacked. At which point, it turns into a very aggressive (though rather unthreatening) opponent, shrieking and wooping far above its actual threat level. You would expect a creature this small and weak to live in flocks, but Pegomastax seems to be fairly solitary in nature.


While not pretty, and far too small to ride, tribes often keep Pegomastax around as a kind of farming aid. Its skill at scavenging means that it collects an extraordinary quantity of seeds and berries, while also handily gathering the rare Flowers, Mushrooms, and other ingredients necessary to cook up unusual concoctions.


Contrary to the dossier, the Pegomastax is a relatively aggressive animal, attacking survivors on sight. However while its damage is very minimal, the Pegomastax can steal items from a player's inventory; aiming primarily for the items in your last inventory section. If the last inventory section is empty, it will try to steal from other inventory sections. Afterwards, it will attempt to run away with the item. If it successfully escapes, it usually comes back again to steal more. Once tamed, the Pegomastax is a friendly creature that will ride on the player's shoulder.


The Pegomastax is a small herbivorous biped with several avian features. First is its beak, which grants the creature a strong bite to crush nuts and fruits. The beak also has small boar-like tusks in it, serving as a tool for harming attackers, humans or dinosaurs. Second is the feathers that cover its back. Unlike those of birds, they are stiff and stand straight like porcupine's quills, though nowhere near as dangerous.

Color Scheme and Regions[]

This section displays the Pegomastax's natural colors and regions. For demonstration, the regions below are colored red over an albino Pegomastax. The colored squares shown underneath each region's description are the colors that the Pegomastax 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.

This information can be used to alter the Pegomastax's regions by entering cheat SetTargetDinoColor <ColorRegion> <ColorID> in the cheat console. For instance, cheat SetTargetDinoColor 0 6 would color the Pegomastax's "main body" magenta.

Pegomastax PaintRegion0
Region 0:
Main Body
Pegomastax PaintRegion1
Region 1:
Pegomastax PaintRegion2
Region 2:
X mark

Region 3 is not used
for this Creature.

Pegomastax PaintRegion4
Region 4:
Back Fur
Pegomastax PaintRegion5
Region 5:
Limb Highlights


Base Stats and Growth[]

Attribute Base Value Level Increase Taming Bonus
Wild Tamed Additive Multiplicative
Health Health 120 +24 +5.4% 0.07
Stamina Stamina 100 +10 +10%
Oxygen Oxygen 150 +15 +10%
Food Food 450 +45 +10% 15%
Weight Weight 55 +1.1 +4%
Melee Damage Melee Damage 10 / 1 +0.5 / +0.05 +1.7% 14% 17.6%
Movement Speed Movement Speed 100% N/A +1% 50%
Torpidity Torpidity 30 +1.8 N/A 0.5
Base Speed Sprinting Speed Stamina
Wild Tamed1 Tamed2 Wild Tamed1 Tamed2
Walking 110 ? ? 473 473 709.5 4
Swimming 300 ? ? ? ? ? ?
  • 1These are the base speeds of the creature at 100% Movement Speed.
  • 2These are the speeds of the creature tamed and non-imprinted.
  • For a comparison of the speeds of all creatures, see Base Creature Speeds.
Attack Values
Bite Stamina Cost Attack Range Description
Base Minimum Activation The Pegomastax bites the target.
0 150 40 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
Pickpocket Stamina Cost Attack Range Description
Base Minimum Activation The Pegomastax steals a random item from a survivor's inventory. If wild, the Pegomastax must either be killed, tranquilized, or tamed in order to retrieve the stolen item. If tamed, pickpocket settings can be toggled in the radial creature menu.
0 80 40 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 1
Jump Stamina Cost Attack Range Description
Base Minimum Activation The Pegomastax leaps at the target.
0 650 100 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
Roar Stamina Cost Attack Range Description
Base Minimum Activation The Pegomastax roars to frighten opposing survivors.
0 250 100 0

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.


The Pegomastax has a unique variation to the Passive Taming mechanic - rather than pressing E to feed an item to the creature, you must allow it to Pickpocket the item from you. This deals a minor amount of damage, after which the Pego will run away and there is a delay before it can be "fed" again. It will prioritise the item held in your last inventory slot, but will move on to steal other random items if your last inventory slot is empty - food items stolen from other slots or your inventory will still count toward the tame. If you have no items - it will become conventionally aggressive. Note that Pickpocketing will steal the entire stack, not just an individual item.

Items that the Pegomastax steals can only be reprised from its corpse or its inventory (tamed or knocked out), with the exception of valid taming foods (i.e. those listed in the table below as well as all types of Kibble) that will be lost.

The amount of consumables in a stack appears to improve taming time, but this is not a 1:1 ratio with the below table (Tested: A level 25 took 4 stacks of 100 mejoberries to tame).

Taming Effectiveness is always 100% (i.e. +50% bonus levels) unless damaged, although damaging a passive tame will reset all Taming Affinity (Progress).

Put mejoberries in stacks of 20 in your inventory, only carry berries let him steal a stack at a time, he will lose a little taming before returning to steal again, a small 1 x 1 box works well to keep him from running away too far after stealing each time. If you encounter problems with dropping tame despite continued stealing, try a larger box and giving the Pegomastax more room.

Pegomastax Level 1 Feeding Interval Time
Fresh Barley (Primitive Plus) Fresh Barley (Primitive Plus) 8 00:36 0:04:17
Fresh Wheat (Primitive Plus) Fresh Wheat (Primitive Plus) 8 00:36 0:04:17
Soybean (Primitive Plus) Soybean (Primitive Plus) 8 00:36 0:04:17
Dried Wheat (Primitive Plus) Dried Wheat (Primitive Plus) 8 01:13 0:08:33
Mejoberry Mejoberry 11 00:26 0:04:25
Berries Berries 16 00:17 0:04:16
Pegomastax Level 30 Feeding Interval Time
Fresh Barley (Primitive Plus) Fresh Barley (Primitive Plus) 12 00:35 0:06:25
Fresh Wheat (Primitive Plus) Fresh Wheat (Primitive Plus) 12 00:35 0:06:25
Soybean (Primitive Plus) Soybean (Primitive Plus) 12 00:35 0:06:25
Dried Wheat (Primitive Plus) Dried Wheat (Primitive Plus) 12 01:09 0:12:49
Mejoberry Mejoberry 16 00:25 0:06:25
Berries Berries 24 00:16 0:06:24
Pegomastax Level 60 Feeding Interval Time
Fresh Barley (Primitive Plus) Fresh Barley (Primitive Plus) 16 00:34 0:08:33
Fresh Wheat (Primitive Plus) Fresh Wheat (Primitive Plus) 16 00:34 0:08:33
Soybean (Primitive Plus) Soybean (Primitive Plus) 16 00:34 0:08:33
Dried Wheat (Primitive Plus) Dried Wheat (Primitive Plus) 16 01:08 0:17:05
Mejoberry Mejoberry 21 00:25 0:08:25
Berries Berries 32 00:16 0:08:32
Pegomastax Level 90 Feeding Interval Time
Fresh Barley (Primitive Plus) Fresh Barley (Primitive Plus) 20 00:33 0:10:41
Fresh Wheat (Primitive Plus) Fresh Wheat (Primitive Plus) 20 00:33 0:10:41
Soybean (Primitive Plus) Soybean (Primitive Plus) 20 00:33 0:10:41
Dried Wheat (Primitive Plus) Dried Wheat (Primitive Plus) 20 01:07 0:21:21
Mejoberry Mejoberry 27 00:24 0:10:49
Berries Berries 40 00:16 0:10:40
Pegomastax Level 120 Feeding Interval Time
Fresh Barley (Primitive Plus) Fresh Barley (Primitive Plus) 24 00:33 0:12:49
Fresh Wheat (Primitive Plus) Fresh Wheat (Primitive Plus) 24 00:33 0:12:49
Soybean (Primitive Plus) Soybean (Primitive Plus) 24 00:33 0:12:49
Dried Wheat (Primitive Plus) Dried Wheat (Primitive Plus) 24 01:06 0:25:37
Mejoberry Mejoberry 32 00:24 0:12:49
Berries Berries 48 00:16 0:12:48
Pegomastax Level 150 Feeding Interval Time
Fresh Barley (Primitive Plus) Fresh Barley (Primitive Plus) 28 00:33 0:14:57
Fresh Wheat (Primitive Plus) Fresh Wheat (Primitive Plus) 28 00:33 0:14:57
Soybean (Primitive Plus) Soybean (Primitive Plus) 28 00:33 0:14:57
Dried Wheat (Primitive Plus) Dried Wheat (Primitive Plus) 28 01:06 0:29:53
Mejoberry Mejoberry 38 00:24 0:15:13
Berries Berries 56 00:16 0:14:56

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.

In rare cases a Pegomastax is also tamed directly when hitting them with the primary attack of a dino the first time a Pegomastax attacks.

Preferred Food[]


This section describes how to fight against the Pegomastax.


Pegomastax will attack you on sight and once within range will attempt to rob you of a random item!


Chase down and stab, shoot, set on fire, or even eat the poor creature to reclaim what it stole!


Almost any weapon will suffice, although ranged weapons are more viable (Unless stolen!)


The only real danger from this tiny monster is that it may rob you of a critical item while you are in combat.


Pegomastax have low health pools and are fast but not faster than most players.

In Addition they have extremely low torpor being capable of being knocked out usually with one Tranq Arrow unlike other passive tames their inventory remains accessible albeit a knockout tame is not possible.

Stealing prevention[]

There is a way to prevent, or at least lower, the risks for a Pegomastax stealing an important item from your inventory. It is unknown if it is a bug or if it is intentional because of taming techniques, but a Pegomastax will almost certainly steal the item that is in the rightmost slot of your action bar. That is if there is an item in that slot and you are not holding something in your hands. A simple trick is to bring something somewhat useless and easily stackable that you would not care if the Pegomastax steals it or not, such as Spoiled Meat Spoiled Meat. Bring a stack of spoiled meat with you and split it into smaller stacks in your inventory. The more stacks of spoiled meat there are, the more likely the Pegomastax will steal one of those instead of your other stuff. After that, all you have to do is some inventory management to make sure all those stacks of spoiled meat don't annoy you when you want to take something in your inventory. To even lower the chances of a Pegomastax stealing your important stuff, be sure to put one of those small stacks of spoiled meat in the rightmost slot of your action bar. Like mentioned above, the Pegomastax will almost certainly steal the item in that slot instead of stealing something else. Pegomastaxes seem to have a "hierarchy" of pickpocketing. First, they will steal what is in your hands. If you are not holding anything, they will steal what is in the rightmost slot of your action bar. Finally, if there is nothing in that slot, they will steal a random thing from your inventory. So it is recommended to put some spoiled meat in that slot so that a stalky Pegomastax would steal it, thinking it just stole something important for you, while actually you don't care at all about it. After a Pegomastax stole it, just open your inventory and put another one in that slot. If another Pegomastax comes by or if the same returns to steal something else, it will steal the newly placed stack of spoiled meat. Stimberry Stimberries are also a viable if not superior option for the last slot over spoiled meats. They are similarly disregarded because of their water drain effect, are far easier to gather, reload into the action bar automatically when picking them, and they are more useful to the player than spoiled meat in the action bar, as they can then be used in a pinch to keep your stamina full in an emergency.

A Shoulder Mount such as Compy Compy or even a Pegomastax Pegomastax can be used to protect important valuables from being stolen



  • Thief: It steals items from players then attempts to run from them (there is also a chance of it taming). Regular pickpoket will cause it to constantly steal from a player and fast will cause to steal and run.
    • Base defender: seting and army on regular pickpoket will make raiders loose all items. This also can be used for role "crafter" and "grinder"
  • Pet: Like the Dimorphodon Dimorphodon and the Compy Compy, the Pegomastax can ride on its owner's shoulder. Some survivors tame it merely for an unusual looking pet.
  • Backpack: It can't carry much, but the Pegomastax can be used to hold smaller items to lighten the load when on a player's back.
  • Seed Gatherer: the Pegomastax can be thrown at berry bushes to collect random seeds for farming.
  • Sabotage: A Pegomastax army can be silently put in the enemy base to different floors and set to wander, fast theft mode and aggressive.
  • Swarm: A swarm of Pegomastax can cause chaos and confusion among a group of enemies.


The Pegomastax steals things from another player's inventory. What it steals depends on what is carried by the survivor, particularly in their inventory slots. This can prove useful; for example acquiring a higher grade weapon perhaps to turn the tide on an enemy.



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

  • Dossier revealed on 18, September, 2015[2]
  • Pegomastax means "strong jaw".
  • These creatures are quite adept at stealing from players and can even take items from players' inventories while those players are mounted on dinosaurs. Great care should be taken to constantly replenish the quick item slot after being robbed as these creatures are common in groups and another is usually lurking around.
  • Although the Dossier mentions that the temperament is Defensive this statement could not be more false. The Pegomastax is extremely aggressive and will attack the player and nearly any tamed creature, even the Rex Rex, without hesitation. It may be important to keep some creatures on neutral to protect passive dinos in your base, just in case a Pegomastax slips in and starts attacking.
  • Pegomastaxes can be very threatening to the player as it can steal many valuable things like Element Element and even Cryopod Cryopods. If it gets stolen, make sure you don’t lose it or you may lose these valuable items.
  • On ARK: Survival Evolved Mobile the Pegomastax could be found for the first time in the Corrupted Lair of the Thief Dungeon, released on 2/4/2020. It doesn't live on The Island.
  • On ARK: Survival Evolved Mobile you cannot apply Soothing Balm to make it tame faster.
  • On ARK: Survival Evolved Mobile it is the only creature to have a true 100% taming and will tame a level 45 on easy, 225 on medium, 450 on hard, and 675 on brutal.
  • It is one of the most hated creatures in the game for a majority of players due to its habit to steal items and run off with them.
  • The ones found in the ocean biome in Genesis: Part 1 do not attack players or tames unless provoked. While this is helpful in most cases, it is a hindrance in taming it.
  • Due to a bug, Pegomastax ignores some of the bushes on Lost Island
  • The Pegomastax can be knocked out similar to other passive tames in the game, they can't be tamed when they are knocked out.


Patch Changes
253.0 Pegomastax Pegomastax is added to the game
253.1 Pegomastax can no longer steal a player's Engrams
253.4 Fixed the Pegomastax losing stolen loot when its body was consumed by a carnivore. Any stolen loot will now be in a bag when its body is consumed
253.99 Fixed an issue associated with players using the Pegomastax causing invisible player connections and corrupting save data
254.4 Tamed Pegomastaxes can now be targetted by wild creatures
  • Added a HUD notification for Pegomastax when it is not pick-pocketing
  • Prevented the Pegomastax from attacking the player if they have nothing that can be stolen
  • Added a 30 second cooldown after the player is stolen from, unless the player attacks the Pegomastax to which the cooldown will be ignored
  • Can now longer rob from the same tribe
259.35 Fixed Pegomastax taming
261.0 Reduced the Pegomastax's base Health Health from 200 to 120
262.0 The Pegomastax's attack SFX no longer sounds so vicious
263.0 Can no longer steal Skins from players
278.0 Can no longer steal Artifacts Artifacts from any creature or player
293.100 Now prefers Simple Kibble Simple Kibble


  1. ARK Smart Breeding
  2. Jat (18, September 2015). "Introducing the Pegomastax". Announcements. ARK: Survival Evolved Steam Community. Retrieved 18 September 2015.