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For Conservation Vulpaphyla, see Vulpaphyla (Conservation).

Vulpaphyla are terrain-restricted Infested fox-like companions. There are 3 subspecies of Vulpaphyla.

Like MOAs and Predasites, Vulpaphylas are obtained through a modular system, with players able to select from various combinations of three different components to create Vulpaphylas to their liking. Since these are organic companions, by lore they are not "built", but rather "revivified" through the use of mutagens and antigens from Son. Beast and Kavat mods may be equipped on Vulpaphylas, however Kavat-specific cosmetics cannot. Vulpaphylas are also immune to the Vasca Virus (as of Update 30.3 (2021-05-25)).

Similar to other non-Sentinel companions, Vulpaphylas can be given custom names for further personalization once they are gilded, as well as being able to be revived once downed.

Similarly to PetDjinn.png Djinn's Mod TT 20px.png Reawaken, Vulpaphlyas have an ability to self-revive with their respective Devolution precept, which regresses the creature into a larval state immediately upon death. This form floats next to the owner in a similar manner to Sentinels for 30 seconds before reviving itself. Each subspecies' Devolution precept offers differing behaviors for their larval states, but the underlying revival mechanic remains the same, effectively rendering the Vulpaphyla immortal until its owner dies. However, the Devolution precept prevents the Vulpaphyla from entering bleedout and thus cannot be revived normally, and its transformation cannot be sped up.

A Vulpaphyla companion needs three different components to be revivified, the Weakened Subspecies, the Mutagen, and the Antigen. Each component type has several options to choose from, allowing players to customize stats and the Vulpaphyla's type and appearance.


The Vulpaphyla's Subspecies forms the companion's head which is the component that earns Mastery Rank points for the Vulpaphyla after gilding. Each subspecies grant 2 mods like other companions.


The Mutagen determines the appearance of the Vulpaphyla's tail and the innate resistance type of the Vulpaphyla.


The Antigen determines the appearance of the Vulpaphyla's Head/Neck, and determines the first Polarity of the Vulpaphyla.


Before players can revivify a Vulpaphyla, they must first purchase the blueprints for the Mutagen and Antigen they desire from Son, which is available for Standing, after which these parts must then be constructed at the Foundry.

The Weakened Subspecies must be captured via Conservation in the Cambion Drift. The wild Vulpaphyla must be put in a "weakened" state, which occurs when attacked by roaming Infested, indicated by an orange shimmering overlay and the name "Weakened" appearing before the Vulpaphyla's name (e.g. Weakened Sly Vulpaphyla). Players may either find wild Vulpaphlya already in combat, or tranq them and then lure enemy Infested toward the sleeping creature. Beware, however, as upon seeing the player, they will attempt to flee and despawn relatively quickly.

Once the component parts have been crafted and the Weakened Subspecies captured, players must return to Son and select the Vulpaphyla Revivification option. Here, players must choose the components they have available to revivify the Vulpaphyla. Once a Subspecies, Mutagen, and Antigen are selected, the player will be shown a preview of the Vulpaphyla's appearance. If the Vulpaphyla is satisfactory, players can then proceed with the Build action, which will instantly Revivify the Vulpaphyla for Credits64.png 5,000. Players can also use the Configure screen to preview builds of Vulpaphyla components they do not yet own.

A newly revivified Vulpaphyla cannot be renamed, customized, Polarized, equipped with a Focus Lens, or earn Mastery Rank experience. However, they can be equipped with an Orokin Reactor.


In order to fully unlock all of a Vulpaphyla's features, players must gild their Vulpaphyla. To gild a Vulpaphyla, the desired Vulpaphyla must first be leveled up to Rank 30. Afterwards, players must return to Son and select the Gild option under Experimental Procedures, which will cost 10 Son Tokens and ReputationBlackx64.png 5,000. Upon gilding the Vulpaphyla, players will be asked to first add a Polarity to the Vulpaphyla, and then finally give it a custom name. This process will reset the Vulpaphyla's level back to Rank 0.

A Gilded Vulpaphyla will have all of the functionality available to other organic companions, and it will have enhanced stats over the newly-built version of the Vulpaphyla. You will only be able to earn Mastery Rank points once you Gild your Vulpaphyla.

  • By default a Vulpaphyla companion has 95 Health, 50 Armor, and 90 Shields. Note that gilding will not increase these stats.
  • The cheapest Vulpaphyla can be revivified at Rank 1: Stranger and its base components will cost ReputationBlackx64.png 2,500 (Adra & Desus) while the most expensive can be built at Rank 4: Friend and its base components will cost ReputationBlackx64.png 12,000 (Phijar & Poxi).


  • Gilding a Vulpaphyla costs 10 SonToken.png Son Tokens and ReputationBlackx64.png 5000 Entrati Standing.
  • Rank 30 Vulpaphylas and Gilded Vulpaphylas can be donated to Son in exchange for 10 and 15 SonToken.png Son Tokens, respectively.
  • Weakened Subspecies are not tradeable.
  • Vulpaphylas have to be gilded to earn Mastery Rank points, with their progression tied to the Vulpaphyla's Subspecies alone. For example, if a player levels up a Gilded Sly Vulpaphyla to 30, any future Sly Vulpaphyla revivified will no longer provide Mastery regardless of what combination of Mutagens and Antigens they have.
    • As there are three currently available, the maximum amount of Mastery Rank points that can be earned from Vulpaphyla revivification is 18,000.
  • The Adra Mutagen's Proto Shield applies to the Vulpaphyla's health type. It does not apply to its shields.
  • Custom names for Vulpaphylas have a 24 character limit including spaces, and will not accept special characters like commas (,) or apostrophes ('), though hyphens ( - ) are accepted.
    • Names can also not include any profanities such as swear words.
  • With 3 Subspecies, 4 Mutagens and 4 Antigens, there are currently a total of 48 possible Vulpaphyla combinations available.
  • Six Vulpaphyla Precept mods were released with the 3 Vulpaphyla companions (each Vulpaphyla subspecies, once used to build a Vulpaphyla companion, comes with 2 specific Precept mods):
  • Vulpaphyla larvae created through the Devolution precepts do not have access to the rest of the Vulpaphyla's equipped mods until they are revived.
    • All Devolution precepts function normally during Arbitrations.
  • Devolution counts as dying and will cost experience each time it occurs. Therefore, while leveling up your Vulpaphyla, it might be advisable to not use the Devolution Precepts and revive it manually instead.
  • When a Vulpaphyla is age-regressed through the Incubator, it will resemble its devolved larva phase.


  • Vulpaphyla are based on the genus of canids Vulpes, also colloquially known as 'true foxes'.

Patch History[]

Hotfix 30.7.6 (2021-09-23)

  • Fixed Vulpaphyla ‘Sentinel’ form not retaining colour customizations.

Update 30.5 (2021-07-06)

  • Players can now install an Orokin Reactor onto ungilded Modular items
    • Being unable to install a Reactor or Catalyst onto an ungilded modular item significantly slowed down progression on new Modular items. Players who were willing to make the investment into Modular items weren’t able to Mod them to their full capacity, which left their new gear feeling very underpowered. So we have removed that restriction!

Update 30.3 (2021-05-25)

  • Fixed Larval state of Vulpaphyla Companion blocking view when in the Pilot seat.
  • Fixed Vulpaphyla’s infected by Vasca Virus creating an Imprint that cannot be used for breeding.
    • Vulpaphyla’s can no longer be infected.
  • Fixed Sly Vulpaphyla not being affected by Ivara’s Prowl invisibility while downed and after being revived.
  • Fixed the Tek Enhance mod not increasing the Duration of the Sly Vulpaphyla’s Survival Instinct Precept.

Hotfix 29.10.3 (2021-03-23)

  • Fixed Codex scans not registering if you had a Vulpaphyla equipped.

Update 29.10 (2021-03-19)

  • Fixed inability to Trade Vulpaphyla Imprints.
  • Fixed Vulpaphyla Imprints missing icons.
  • Fixed not receiving Son Tokens right after releasing a Vulpaphyla companion if you have 0 Tokens at the time. This also fixes inability to spend or exchange the rewarded Tokens until you exit and re-enter the Necralisk.

Update 29.5 (2020-11-19)


Son has new Vulpaphyla Precept Mods available for Entrati Standing!


  • Martyr Symbiosis: Drains and stores 20 Health from corpses within 25m up to 20% of their Master’s Health. Sacrifices itself to heal their Master if they fall below 10% Health.
  • Enabled Imprinting and breeding for Predasites and Vulpaphyla.
    • Mutagens and Antigens are inherited through breeding, allowing pets to stack their benefits.
    • Predasites and Vulpaphyla can only be named when Gilded, so naming after hatching is skipped.
    • Predasites and Vulpaphyla can not be cross bred with non-modular pets.
    • Imprints of Predasites and Vulpaphyla can only be taken when the pet is Gilded.
  • Updated the descriptions of the Vulpaphyla and Predasite Antigens for Vulpaphyla.

Hotfix 29.2.4 (2020-10-15)

  • Fixed Vulpaphyla name appearing as [PH] Chrysalis upon devolving into a larva state.

Update 29.2 (2020-09-29)

  • Fixed issues with hybrid Companions appearing in the Market when viewing certain items.
  • Fixed some Look Link issues and diorama issues with the new Companions (mismatching tails, for example).

Hotfix 29.1.1 (2020-09-18)

  • Fixed a script error when equipping an Infested Companion.

Update 29.1 (2020-09-17)

  • Fixed the default icons for Mutagen and Antigen samples in the Vulpaphyla Revivification menu (Son at Necralisk) being swapped.

Hotfix 29.0.8 (2020-09-10)

  • Updated Deimos Mutagen and Antigen descriptions to indicate which animal they are designated for (Predasite vs Vulpaphyla).
  • Fixed many cases where the Sly Vulpaphyla wouldn't respect cooldowns, would fail to trigger, or would result in Client FX not getting cleaned up.
  • Fixed inability to swap Polarities via Forma on Infested Companions.
  • Fixed the name of newly Gilded Infested Companions not appearing in the Arsenal.
  • Fixed an issue where you could not release an animal in the Necralisk if you had no Daily Standing left.

Hotfix 29.0.6 (2020-09-01)

  • Fixed Vulpaphyla Companions not granting Mastery Rank.
    • Upon login of this Hotfix, missing Mastery will be given for your respective Gilded Infested Companion.
  • Fixed a crash that would occur when opening the Simulacrum Arsenal in multiplayer Simulacrum with a Vulpaphyla equipped.
  • Fixed Vulpaphyla Companion getting reset to Rank 0 if the Vulpaphyla went into bleedout while you were dying/Reviving.
  • Fixed Sly Vulpaphyla's Survival Instinct not showing FX for Clients.
  • Fixed a script error where Panzer Vulpaphyla died before the Viral Quills projectiles landed.
  • Fixed a script error when a Crescent Vulpaphyla used Crescent Charge on a target that died.

Update 29.0 (2020-08-25)

  • Introduced.

See Also[]