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Prehistoric Kingdom›Events›PTB: Fix Patch (1.17.51)
In-game event

PTB: Fix Patch (1.17.51)

Prehistoric Kingdom · published 4 months ago · build 22965466

All eventsPlayers around this dateRead on Steam

Welcome, Park Testers! This PTB release is focused on quickly addressing the most commonly reported community issues - most notably input system bugs and unusable keybind controls. We hope this provides a more stable testing environment while we continue working on the remaining species for U17 and further develop animal combat.

How to Access the Public Testing Branch (Experimental!)

The Public Testing Branch (PTB) is a version of Prehistoric Kingdom that can be opted-into on Steam, containing experimental and potentially breaking changes. With the help of the community, we're able to hunt down various issues and gather feedback before pushing a an update to the public version of Prehistoric Kingdom.

  1. Right click Prehistoric Kingdom in your Steam Library

  2. Go to Properties

  3. Betas

  4. Select 'ptb_public_testing'

Please note that it is not recommended to play Public Testing Branch parks on earlier versions of the game. Please send feedback and bug reports to our Discord server's appropriate channel.

Known Issues & Additional Notes

  • Stegosaurus is still being implemented so additional sounds and visual polish will arrive later

  • There is an occasional water loading issue which can cause old 'muddy' water to load with incorrect visuals. This can easily be fixed by forcing a water update, either through painting more water or replacing the water bodies with a different water type

  • Staff can be a bit unwieldy when using the breakrooms; please bear with us while we teach them how to take breaks!

Full Patch Notes

Additions

  • Music

    • Added a new Vivarium track for Arboreal animals: First Flight (1:36)

Changes

  • Animals

    • Added Desert biome preference to both Stegosaurus species

  • Music

    • Building tracks ‘Build, Sleep, Repeat’ and ‘Ingenuity’ can now play at a park rating of 0

Bug Fixes

  • Critical

    • Fixed several critical input system failures exposed by the initial PTB play-testing:

      • Patched a critical input error that would accidentally register certain keyboards as joystick devices, forcing the game’s input to not listen to the default mouse/keyboard behavior. Please let us know if this issue persists!

      • Fixed multiple input detection inaccuracies that would lead any custom binding’s application from failing with the ‘Invalid Keybinds’ error

      • Fixed an issue causing successful custom settings from being loaded across play sessions

      • Re-enabled camera mouse panning behavior

      • Fixed granular tuning of custom keybinds, with certain mouse-related keybinds now accepting any input types, whereas other keybinds strictly require non-mouse inputs

      • Fixed RMB (right mouse button) triggering GUI cancellation events

      • Fixed multiple keybinding layout issues in the Options Menu

    • Fixed an animal enclosure registering bug which would cause moving un-enclosed animals to deregister from important data

  • Animals

    • Fixed a mesh error causing immature Velociraptor to glitch out when far away

    • Fixed incorrect texture resolution settings for both Stegosaurus species

  • UI/UX

    • Fixed a silly last-minute oversight that could cause sandbox settings not to be synced up with the new game menu’s user settings upon loading a new game. It is possible that this also caused animals not filling their nutrition through browsing, even if players enabled this option

    • The ‘Not Contained’ and ‘In Quarantine’ headers in the animal management menu list now accurately update their animal counts and species widgets

    • Fixed the Tokod Locality excavation site not appearing on the excavations map

    • Fixed faulty logic for the ‘Animal Escaped’ park issue

    • Fixed an issue causing Loading Bay selection to not trigger when the Logistic Management View was open

  • Rendering

    • Fixed an issue where animal textures could be assigned an incorrect mip size during the nursery menu preview, causing the incorrect texture settings to persist for the rest of the session

  • Audio

    • Nursery animal preview individuals should not be heard outside of the nursery menu any longer

More from Prehistoric Kingdom

Other announcements

All events
Game update1 Sep 2026Prehistoric Kingdom - Update 17 Fix Patch (1.17.120)Welcome, Park Managers ! The final support patch for Update 17 is here, bringing new partner combat animations for several species, major improvements to animal behaviour and mutation visuals, important optimizations, and many exciting QoL improvements. Behind the scenes, we’ve also tackled a wide range of crashes, construction issues, performance bottlenecks, and save/load problems to make bui…Community31 Aug 2026Dev Diary: August 2026Welcome to the August Development Update! To kick things off, we can confirm that the final support patch for Update 17 is very close to release! After one last round of testing, it’ll be released shortly to improve stability and add new partner animations to 7 different animals (Mammuthus, Nasutoceratops, Pachycephalosaurus, Panthera, Smilodon, Styracosaurus and Velociraptor). In the meantime,…Community1 Aug 2026Dev Diary: July 2026Welcome to the July Development Update! A week ago we put out a survey to gather feedback and see how the community felt about various parts of the game. To our surprise, we received a staggering 4,000 responses within the first 24 hours! You absolutely destroyed our measly target of 1,000. Looking over the results, community sentiment for the core game seems to greatly align with our internal…