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Steam News24 December 20256mo ago

Prehistoric Kingdom - Hotfix (EA 1.16.36)

Hello, Park Managers! This is a quick patch to resolve some of the more immediately reported issues with Update 16. The team will now be on break until mid-January.

In this update5

Full notes

Full Prehistoric Kingdom update

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What changed

3 fixes3 additions9 changes1 removal
  • Server
  • Gameplay
  • Balance
  • Performance
  • UI and audio
  • Fixes
changedThis is a quick patch to resolve some of the more immediately reported issues with Update 16. The team will now be on break until mid-January. Please continue to submit detailed bug reports on our Discord server with an upload of your player log!
changedWhy won't my snake move?!As described in previous Dev Diaries, vivarium animals have a mix of traversal points and static points that they can spawn at, switching between them when the camera moves away.
changedWhy won't my snake move?!Because of how unique Titanoboa is compared to other vivarium species, it primarily uses static points (resting in place like a snake) with a chance to play the movement animation seen in the trailer when the player returns.
addedWhy won't my snake move?!Because of how much work is needed to animate the snake, it currently has a single movement option. In the future, we'd love to add more traversal spots and also support the amphibious vivarium (requiring entirely separate animations to make that work).
changedKnown Issues & Additional NotesPlease send feedback and bug reports to our Discord server's appropriate channel.
changedKnown Issues & Additional NotesAs a result of FSR, humans can appear smeared in motion. Turning off FSR will resolve this issue.

Prehistoric Kingdom changes

changedThis is a quick patch to resolve some of the more immediately reported issues with Update 16. The team will now be on break until mid-January. Please continue to submit detailed bug reports on our Discord server with an upload of your player log!
changedAs described in previous Dev Diaries, vivarium animals have a mix of traversal points and static points that they can spawn at, switching between them when the camera moves away.
changedBecause of how unique Titanoboa is compared to other vivarium species, it primarily uses static points (resting in place like a snake) with a chance to play the movement animation seen in the trailer when the player returns.
addedBecause of how much work is needed to animate the snake, it currently has a single movement option. In the future, we'd love to add more traversal spots and also support the amphibious vivarium (requiring entirely separate animations to make that work).
changedPlease send feedback and bug reports to our Discord server's appropriate channel.

Hello, Park Managers!

This is a quick patch to resolve some of the more immediately reported issues with Update 16. The team will now be on break until mid-January. Please continue to submit detailed bug reports on our Discord server with an upload of your player log!

Why won't my snake move?!

As described in previous Dev Diaries, vivarium animals have a mix of traversal points and static points that they can spawn at, switching between them when the camera moves away.

Because of how unique Titanoboa is compared to other vivarium species, it primarily uses static points (resting in place like a snake) with a chance to play the movement animation seen in the trailer when the player returns.

Because of how much work is needed to animate the snake, it currently has a single movement option. In the future, we'd love to add more traversal spots and also support the amphibious vivarium (requiring entirely separate animations to make that work).

Known Issues & Additional Notes

Please send feedback and bug reports to our Discord server's appropriate channel.

  • As a result of FSR, humans can appear smeared in motion. Turning off FSR will resolve this issue.

  • The side faces of the water volumes in amphibious vivarium have glitchy visuals at this moment. This is something we're actively investigating.

  • When refilling feeders or vivariums, staff can become separated from their hats and wheelbarrows. We've asked them to stop and yet they persist.

  • Sometimes when going to refill a vivarium, staff will run in a straight line through EVERYTHING.

  • Moving the camera close to objects can make them shimmer, we're currently investigating this.

  • NOTE: The animation preview dropdown in the Nursery does not yet function for vivarium species.

  • NOTE: Due to the sheer workload of animations, the majority of animal knockdowns are missing audio.

  • NOTE: Vet-related animations do not have audio yet.

  • NOTEAnimal growth speeds have not been adjusted. Please let us know if they should be slower as a result of supplements.
  • NOTE: Sahonachelys does not have any Nigel dialogue lines just yet.

Full Patch Notes

Additions

  • UI/UX

    • Vivarium animals can now be renamed

    • Added vet counter in the Staff Management Menu

Changes

  • Balance

    • All Vivarium structures should now have more appropriately balanced costs for Challenge Mode

    • Increased resistance time of the Common Cold affliction, meaning animals will be more resistant to it after being cured

  • Animals

    • Updated diet for Diplocaulus

  • UI/UX

    • Vivarium animal placement now refreshes the vivarium’s nature only if the substrate has changed (this is necessary in order to properly adapt the natural item’s positions to the substrate)

    • Removed social group GUI element from vivarium animal previews within the Nursery Menu, since these species don't have social requirements yet

Bug Fixes

  • Critical

    • Potentially fixed critical exceptions in GUI refreshing

    • Fixed one source of positional desync between water volumes and their parent pieces (in this case, Amphibious vivariums), when undoing positions

  • Animals

    • Fixed an animal scale value cache using a wrong index, resulting in massively inflated weights and score reporting

    • Fixed terrestrial vivarium animals floating when placed in the Large Terrestrial Vivarium

  • UI/UX

    • Fixed vivariums reporting ‘Incorrect Feed’ if not stocked by any animal when their feed is not set to plants

    • The vivarium type header text now updates with the selection of a main layout (Terrestrial, Arboreal or Amphibious)

Source

Steam News / 24 December 2025

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