Jurassic World Evolution 3 Wetlands Pack, Update 1.2 Released

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Jurassic World Evolution 3 has received the Wetlands Pack and free Update 1.2, introducing new dinosaur family units, swamp themed scenery, and expanded environmental tools. The paid Wetlands Pack adds three new dinosaurs and a large selection of wetland building pieces and blueprints, letting park managers design misty bayou style habitats and dense, humid marshes for their animals.

Alongside the pack, Update 1.2 brings back Deinocheirus as a free new family unit, adds a Wetlands brush, extends the Island Generator with new biomes and a Beaches slider, and delivers a substantial round of user experience upgrades, stability improvements, and bug fixes. It is a sizable quality and content pass that should make both park building and day to day management smoother.

Patch Notes

Wetlands Pack

New Dinosaur Family Units

• Added Irritator as a new semi aquatic spinosaurid carnivore designed for waterside enclosures.
• Added Austroraptor as a larger, versatile raptor relative that hunts via fish feeders and on land.
• Added Hypsilophodon as a herd forming herbivore that prefers warm, swampy habitats with dense vegetation.

Immersive Wetland Scenery

• Added hundreds of new scenery pieces tailored to wetland and bayou style environments.
• Enabled creation of lush open areas for Hypsilophodon herds to roam.
• Supported dense, humid swamp builds featuring abandoned jetties for Irritator to swim and fish around.
• Introduced 13 new enclosure and scenery blueprints, including:
  • Boathouse themed structures.
  • Rusted shack designs.
  • Wooden pontoon style platforms and walkways.
• Encouraged use of Frontier Workshop to browse and apply community made blueprints in Wetlands themed parks.

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Update 1.2

New Family Unit – Deinocheirus

• Added Deinocheirus as a new free dinosaur family unit.
• Introduced a large semi aquatic ornithomimosaur with a family based arrival into player parks.
• Highlighted huge forelimbs with sharp claws suited to foraging and juvenile defense.
• Designed Deinocheirus to fit naturally into existing parks and new Wetland focused enclosures.
• Emphasised its toothless, duck like bill and feathery tail as visual traits.

New Scenery and Foliage Brush

• Added the Cypress Swamp environment brush for Temperate and Tropical biomes.
• Enabled the brush to paint enclosures with new Cypress Trees.
• Introduced an atmospheric ground mist that spreads across the terrain when using the Wetlands style brush.
• Added Mossy Cypress Tree scenery pieces as standalone items for fine detail work.

Island Generator

• Added new Temperate biome option to Island Generator.
• Added new Desert biome option to Island Generator.
• Added new Mediterranean biome option to Island Generator.
• Introduced a Beaches slider to control the prominence of beaches at island edges.
• Enabled map generation with more extensive sandy beaches or more sheer cliff lines based on slider settings.
• Allowed building placement and terrain editing up to the water’s edge on generated islands.
• Enabled scenery placement anywhere across the full map area, including beyond the original island boundary.

User Experience Changes

• Added an Obstructions heatmap showing movement zones for:
  • All dinosaur sizes.
  • Guests.
  • Vehicles.
• Integrated the Obstructions heatmap into environment tool panels so it can be viewed during landscape editing.
• Added a Copy Path Style option to quickly match the style and colours of existing paths across the park.
• Introduced a Blueprints Menu to collect:
  • Player created custom blueprints.
  • Downloaded workshop blueprints.
• Made building placement and editing controls fully rebindable.
• Rebalanced juvenile to adult social behaviours so they occur more frequently.
• Added controls to support easy placement of multiple instances of the same building blueprint.
• Expanded Freelook camera movement control:
  • Holding Ctrl now slows movement for precise control.
  • Holding Shift now speeds up movement for faster navigation.

Stability Enhancements

• Improved overall game stability.
• Applied general performance optimisations.

Bug Fixes

Key Visual Changes

• Resolved an issue where certain decals became transparent when they should remain visible.
• Fixed an issue where feathered dinosaurs displayed at low detail quality.

Campaign

• Fixed an occasional problem where Montana objectives would fail to play correctly.
• Increased frequency of infected feeders on campaign maps when required for specific research steps.
• Resolved an issue preventing manual building repairs in certain campaign situations.
• Synchronised the appearance timing of contracts with Cabot Finch’s contract commentary.

Challenge

• Updated Montana Badlands challenge to correctly display its preview image in the menu.

Sandbox

• Fixed a rare issue where dinosaurs would not starve in sandbox mode when expected to.
• Allowed monorail track deletion when it has been placed outside the buildable area on Island Generator maps.
• Removed all pre placed paths from the Hawaii sandbox map.
• Corrected UI messaging so scientists are no longer shown as required when setting automated releases from hatcheries in sandbox mode.
• Removed staff combined skill research requirements in sandbox when scientists are disabled.

Management

• Resolved an issue where multiple helicopters would collect containers from a single hatchery simultaneously.
• Fixed a bug causing helicopters to become stuck when loading a save.
• Enabled maintenance teams to automatically repair broken pylons connected to substations and power stations.
• Corrected a marine enclosure bug where one fish feeder incorrectly counted as two.
• Restored automatic repair behaviour for aviary domes that were not fully destroyed.
• Fixed staff training cost display so prices update correctly when increasing more than one skill point at once.

Dinosaurs

• Fixed broken dominance values when dinosaurs had no dominance trait.
• Corrected Metriacanthosaurus juvenile icon to show a meat diet rather than piscivore.
• Reduced Guanlong comfort requirements to better match its body size.
• Fixed Iguanodon cosmetic skin inheritance so offspring receive correct visuals.
• Moved Psittacosaurus to the correct family tab in the genome library.
• Improved Concavenator alignment with fences during climbing animations.
• Reworked multiple dinosaur fighting animations for better presentation.
• Fixed Kentrosaurus clipping through delivery crates during exit animations.
• Ensured dinosaur diseases function as intended on Island Generator maps.
• Resolved issues with some dinosaurs incorrectly entering the dinosaur encounter attraction.
• Enabled Therizinosaurus and Lystrosaurus to cohabit.
• Added a juvenile Metriacanthosaurus social interaction animation while drinking.
• Added a claw threat icon for small carnivores that can access the dinosaur encounter attraction.
• Improved hunting and feeding animations for several marine reptiles.
• Updated the family tree tab so discomfort levels display for all juveniles.
• Ensured dinosaur territory updates correctly after terrain edits or escapes from natural enclosures.

Park Construction

• Fixed a crash when grouping specific benches with modular items.
• Improved icons for all wall and floor kits to better represent size.
• Corrected building placement messaging where Not Allowed appeared incorrectly.
• Enabled recolouring for visitor centre fountain modular buildings.
• Fixed a breeding programme issue where moving a nest could cause the process to stall.
• Resolved cases where certain wall pieces shifted the placement grid improperly.
• Fixed collision settings resetting to Off after reloading a save.
• Restored functionality of the Highlight on Hover scenery selection setting.
• Improved collision on foliage pieces generated by the Malta biome woodland brush.
• Fixed an issue where players could not undo feeder placement while in Edit Environment mode opened from a dinosaur’s needs panel.
• Resolved partial navigation blocking caused by Malta restrooms when snapping to paths.
• Added a fence line preview to the amphitheater building so fences can snap cleanly.
• Added collision to hatchery gates for manually driven vehicles.
• Fixed a controller issue preventing use of the shortcut button to swap to the demolish tool while in the Editing menu.
• Resolved a bug where deleted modules continued to obstruct new building placement.
• Ensured tours now spawn the correct tour vehicle based on the current skin selection.
• Fixed remote viewing entrance rotation so orientation is consistent.
• Smoothed multi selection deletion to improve performance.

Stability

• Applied additional performance and stability improvements across the game.

UI

• Treatment Bay status now updates correctly after removing a dead dinosaur.
• Cleaned up the blueprint filter and search menu so it no longer blocks other UI elements.
• Fixed an issue where switching tabs inside information panels sometimes failed.
• Added extra button prompts while operating vehicles for clearer controls.
• Resolved cases where players could become stuck when pressing keyboard shortcuts at the same time as UI buttons.
• Matched multiple dinosaur skin colours correctly to their UI swatches.
• Updated the Research Interests narrative event to display the correct reward.
• Fixed an issue where expedition sites could visually obscure each other on the expedition map.
• Ensured Hold text remains visible on relevant key rebinds.
• Resolved overlapping text issues on the island overview screen.
• Updated several audio settings descriptions for clarity.
• Fixed the Go To Operation option not working in some decorative building UIs.
• Corrected requirement text for unlockable statues.
• Fixed additional traits being shown as plus zero more in hatchery UI when dinosaurs had more than seven traits.
• Corrected faction reputation icons so they stay within their column in the marketplace UI.
• Fixed a bug where the world map remained faded or darkened after unlocking new sites.
• Updated skill preview displays to match selected scientists for expeditions.
• Disabled the Replace Contract button shortly after completing a contract.
• Cleaned the marketplace screen so no text is cut off.
• Improved readability of profit breakdowns in profit tooltips.
• Ensured Environmental Needs criteria no longer show as negative when exactly at 100 percent.
• Improved visuals for guest satisfaction progress bars in the Amenities UI.

Paths and Environment Tools

• Fixed a rare issue preventing editing of path flexi colours in specific circumstances.
• Resolved a problem where some trees warped visually near dinosaurs and vehicles.
• Fixed tools loading incorrectly after certain autosave events.
• Improved how rocks generated by foliage brushes interact with dinosaur territories.

Graphics

• Fixed an issue where cloud shadows disappeared after changing graphics settings.
• Ensured the world map opens correctly on first launch on wide monitors.

Audio

• Fixed an issue where main menu music did not play for first time users.
• Restored audio for dinosaur feeder doors opening and closing.

Localisation

• Fixed missing Cabot Finch voice lines in some languages.
• Removed unnecessary abbreviated text in multiple localised versions.
• Correctly formatted world map unlock text in all supported languages.
• Fixed translation issues for multiple asset names.
• Corrected mistranslated dinosaur names.
• Resolved localisation problems on the park rating screen.

Jurassic World Evolution 3 is a construction and management simulation game developed and published by Frontier Developments, released on October 21, 2025, for PC, PlayStation 5, and Xbox Series X/S.

Have you noticed these changes? Share your thoughts in the comments!