Hello friends, 

We're unleashing our new DLC today! Welcome to The Prehistoric Planet Pack. 

This DLC features an existential threat that no ONI colony has ever faced before: a massive impactor asteroid aimed right at this brave new world! 

The Prehistoric Planet Pack travels deep into the past, to a forgotten world ruled by ancient dino-like critters—some so big that their stomping will auto-harvest crops, others so prey-driven that they can't be trusted in a ranch. (Do they also have a taste for Duplicants? Only one way to find out.) There are brand-new biomes, plants, resources, foods and buildings, as well as two new recruits who've been stranded there for longer than they can remember. Plus, an exclusive collection of cosmetic blueprints that cultivate a truly paleontological palette.

Discover new long-range firepower to help your crew valiantly defend their new home, obliterate the incoming space rock before it hits, and change the course of history. In this universe, there's no such thing as safe... luckily, survival is in Duplicants' DNA! (Sort of.) For colonies that thrive on an amplified threat of mass extinction, there's an extra-explosive scenario available in the Lab. 

The Prehistoric Planet Pack can be purchased for 7.99USD and is available now on Steam, WeGame and Epic. 

If you own more than one DLC, shake things up by using the Scramble DLC tool when making a new game! It works for The Prehistoric Planet Pack as well as past and future additions to the ONI universe. 

The base game also gets a free update today! This includes a bunch of UI improvements, bug fixes, and critter tuning. 

What's in this DLC?

• New starting world: Relica

• Two new Duplicants: meet Maya and Higby!

• New biomes: A vine-filled Garden! A Jawbo-infested Wetlands biome! A Feather biome full of hungry Rhexes! 

• New critters: The mighty Rhex and Jawbo! The blissfully blank Lumb and Dartle! The winged Gnit and Mimika!

• New plants: Ovagro Vine, Mimika Bud, Snactus, Ring Rosebush, Sweatcorn Stalk, Megafrond, Dew Dripper, Seakomb, Lura Plant

• New buildings: a dino-meat Smoker, Peat Generator, Emulsifier, Fossil Block, Hanging Fossil Block

• New elements: Shale, Amber, Resin (the old version has been renamed Sap), Peat, Nickel, Biodiesel, Iridium

• New POIs: defense station ruins POI! Post-impact space destinations for base game! Post-impact space POIs for Spaced Out! Surface POI from the impactor asteroid's collision! 

• Exclusive prehistoric-themed cosmetic blueprints!

• ...and more!

Take a crash course in planetary defense and usher in the Age of Duplicants with The Prehistoric Planet Pack!

Our heartfelt appreciation to all those who helped us polish things up during beta! Check out the patch notes and F.A.Q. below.

F.A.Q.
What platforms will this DLC be available on? 
The Prehistoric Planet Pack launches on Steam, WeGame, and Epic today (June 12th). 

How much does it cost? 
7.99USD

Do I need to own the base game? 
Yes, you will need to own Oxygen Not Included in order to play this DLC content. 

Do I need to own Spaced Out! DLC in order to play this DLC content? 
You do not need Spaced Out to purchase or enjoy The Prehistoric Planet Pack .

How do I report bugs? 
Bug reports go here! Thank you so much for helping us squash 'em. 

How do I give feedback? 
We love feedback. Post it here.

Can I play with my old save game?
Yes, you can upgrade your old save. Please note that in DLCs that contain new worldgen and worldgen-related improvements, those aspects will be available to new games only. (For example, old saves will not contain the Demolior impactor asteroid.)

How do I upgrade my old save? 
Go to the pause menu and click on the DLC's logo. It will create a copy of the save with the DLC enabled.

Is there still a Previous Update Branch? 
Yes! If you're playing on the base game and this free update breaks some of your mods, you can opt in to the temporary, unsupported Previous Update Branch. 

Where can I find more details and information?
Check out our Steam Store page for more information! 

Full Patch Notes

Features

• The Prehistoric Planet Pack

  • Added new clusters

    • Relica (base game)

    • Relica Asteroid (Spaced Out! Classic style)

    • Relica Minor (Spaced Out!)

    • RelicAAAAAAAGHH (The Lab)

  • Scramble DLC settings

    • Added Relica Fragment in Asteroid Remixing.

    • Added new biomes in Biome Remixing.

    • In DLC Content mixing:

      • Added Prehistoric Ore Field starmap destination for base game players.

      • Added Amber Field Space POI for Spaced Out players.

      • Added care packages for new content.

  • Added new Duplicants

    • Maya

    • Higby

  • Added Garden starting biome

    • New Critters

      • Lumb

      • Mimika

    • New Plants

      • Ovagro Node & Vine

      • Mimika Bud

      • Snactus

      • Sweatcorn Stalk

      • Ring Rosebush

  • Added Feather biome

    • New Critters

      • Rhex

      • Dartle

    • New Plants

      • Dew Dripper

      • Megafrond

  • Added Wetlands biome

    • New Critters

      • Jawbo

      • Gnit

    • New Plants

      • Seakomb

      • Lura Plant

  • Added new foods and ingredients

    • Snac Fruit

    • Ovagro Fig

    • Tough Meat

    • Tender Brisket

    • Jawbo Fillet

    • Smoked Fish

    • Veggie Poppers

    • Toasted Mimillet

    • Sweatcorn

  • Added Demolior Impactor Asteroid imperative

    • Post-impact space POIs for Spaced Out! players.

    • Post-impact space destinations for base game players.

    • Demolior Impact adjustable difficulty setting for non-Lab Relica asteroids.

  • Add new buildings

    • Peat Generator

    • Two new sculpture buildings: Fossil Block and Hanging Fossil Block

    • Smoker

    • Emulsifier (not exclusive to DLC4)

      • Salt Water recipe

      • Biodiesel recipe

  • Add new elements

    • Amber

    • Resin (new, derived from Amber. The old version of resin has been renamed Sap.)

    • Peat

    • Nickel + Ore

    • Biodiesel

    • Iridium

    • Shale

  • New Points of Interest (POIs)

    • Prehistoric Planet Starting Base

    • Defense station ruins ruins

    • Surface POI when the impactor asteroid lands.

  • New Music

    • Added The Prehistoric Planet Pack-themed music track.

    • Added new prehistoric-themed music stingers: welcome message, morning & night, and Demolior falling.

  • Other new features

    • Added approximately 50 Prehistoric Planet Pack-exclusive cosmetic blueprints.

    • Added Cool Chlorine Gas Vent

    • Added Intracosmic Blastshot and Blastshot Maker recipe.

Changes and Improvements

• All versions

  • Buildings and Fabricators

    • It is now possible to substitute the ingredients of some recipes in the fabricator UI. Some recipes have been combined to take advantage of this.

    • Crafting Table and suit fabricators no longer hide recipes with undiscovered ingredients.

    • Moved liquid product recipes (such as Super Coolant and Visco-Gel) from the Molecular Forge to the Emulsifier.

    • The Plant Pulverizer recipe for Phyto Oil from Slime is now available in the base game.

    • Added late-tier research unlocks for Super Coolant and Visco-Gel recipes.

    • Added Peat to Refined Carbon recipe at the Kiln.

    • The Fish Release now requires submersion in liquid to accept deliveries.

    • Changed Meteor Blaster sidescreen to support ammunition selection and long-range target selection.

  • UX

    • The build tool can now place construction orders on top of wild plants, which will have the necessary uproot chores automatically generated.

    • When displaying Units, Rads or Calories values, precision displayed was increased. It now shows up to two decimal places.

    • Pollinated plants and fertilized plants now show a visual effect on them while the buff effect lasts.

    • The notification that pops up when the Research Portal has been accessed by a Duplicant now reads "Portal Unlocked!"

  • Care Packages

    • Added Dasha Saltvine seed to care packages.

    • Added Mealwood seed to care packages.

  • Elements

    • The new version of Resin (derived from Amber) can now be transformed into plastic at the Polymer Press.

    • Solid Resin is now a transparent material. Updated the visuals of Solid Resin to look more glossy.

    • Tallow now melts into Biodiesel instead of Crude Oil.

    • The Tallow description now mentions that it can be used for food or industrial processes.

    • The liquid harvested from Experiment 52B has been renamed Sap, and its solid counterpart has been renamed Isosap. They were previously called "Resin" and "Isoresin" respectively. (The name "Resin" now refers to the liquid produced by refining Amber.)

    • Added Peat as a substitute ingredient in the Kiln's Ceramic recipe.

    • Regolith from meteor showers only stacks 1 tile above the build limit.

    • Added new tile texture for Brine Ice.

  • Fuzzy Search

    • Database search now uses fuzzy matching.

    • The search function now considers the research tier when sorting results. For example, if two items both have the same maximum match on Name and SearchTerms, the more accessible (i.e. lower research tier) item will be listed first.

    • Improved the update speed from "No Results Found" when the search text is cleared, in Build Menu.

  • Worldgen

    • Changed the placement rules of entities in worldgen so that it is no longer possible to have two entities occupying the same cell. For example, Pincha Peppernut growing into a plant on the floor.

  • Critters

    • Large critters now have slightly more hit points than small creatures.

    • The Smooth Hatch diet has been updated to include Cinnabar and Nickel Ore.

    • Hatches can now eat Shale.

    • Critters will prioritize eating from a feeder over eating plant growth, regardless of distance.

  • Database

    • Added an Element Properties category to the database.

    • Changed the way Plastic Monomers are displayed in the database: The recipe for transforming Resin, Nectar or Petroleum into plastic is now displayed in the database entries for those elements.

    • Added a new Medicines category and entries to the database.

• Spaced Out! only

  • Rocket port buildings no longer exchange heat with the environment.

  • Revised the art of the four Radsick Monument Tops to make them slightly less grisly.

  • Spindly Grubfruit Plant database entry now contains an introductory paragraph of information about the plant.

  • Reduced Artifact Cargo Bay rocket burden.

  • Saturn Critter Trap

    • Can no longer eat 2x2 critters

    • Added a checkbox to the requirements section indicating critter consumption

    • Added edible critters to database entry

    • Added “Awaiting Prey” status item

• Frosty Planet Pack

  • The Plume Squash Plant database entry now displays an introductory paragraph of information about the plant.

  • Deep Fryer food now counts for "It's Not Raw" achievement.

• Bionic Booster Pack

  • Added a Tallow-based Gear Balm which provides high morale.

  • A Gear Balm’s element now matches its recipe ingredients.

  • Bionic Duplicants can now consume power banks at mess tables, potentially gaining a room bonus when doing so.

  • Bionic Duplicants will choose to breathe atmosphere rather than suffocate on a too-long journey to fetch an oxygen tank.

Fixes

• All versions

  • Another attempt at fixing unit vs mass fetch issues.

  • Solid conduits now transfer the whole pickupable if the mass per unit is greater than 20kgs.

  • Space Exposure hover tooltip is no longer shown for Airflow Tiles, Mesh Tiles, or doors which block space exposure.

  • Fixed an issue causing the Fish Release Counter to incorrectly count fish.

  • Reordered art skins so that Monument pieces appear top to bottom, and Canvas categories are grouped together.

  • Fixed a crash that happened when loading a save file that had a storage tile storing an old item that no longer exists in the game.

  • Added a database entry for “Filtration Medium” and corrected the links that led to it.

  • Farm and Power Control Stations output product temperatures now match input ingredients.

  • Fixed an issue causing Farm Stations and Power Control Stations to open work chores when they had insufficient material to produce anything.

  • Fixed an issue preventing the detail screen's title bar label from updating when the selected world cell's element changes.

  • Fixed Liquid Bottle Filler and Gas Canister Filler continuing to work when disabled.

  • Heat Resistant and Frost Resistant effect descriptions no longer imply that they will give Duplicants full immunity to extreme heat and cold, as they are still vulnerable to Scalding and Frostbite.

  • Fixed Payload Launcher sidescreen tooltips referring to the selected object as a rocket instead of a Payload Launcher.

  • Fixed Lead tile visual shine effects not working properly.

  • Added Cobalt tile texture.

  • Fixed large critters incorrectly being able to navigate down into a single cell space they can’t actually fit into.

  • Fixed an issue causing images in the database to sometimes have excessive whitespace appear above them.

  • Fixed missing rope in baby Hatchlings' trussed and escape animation states.

  • Fixed a bug where trapped critters could become unreachable creating impossible-to-complete errands which froze Duplicants.

  • Fixed Shine Bugs not consuming anything.

  • Fixed large critters interacting with the Critter Condo from the correct location.

  • Corrected and improved capture method descriptions for traps in their details panel.

  • Removed Small Pokeshell Molt and Small Oakshell Molt. The Pokeshell Spawn and Oakshell Spawn now drop small portions of regular Pokeshell Molt and Oakshell Molt on death or when maturing into adults.

  • Fixed a Rotpile crash that could occur when loading some saves.

  • Worldgen

    • Fixed a bug causing oil wells to sometimes spawn in neutronium

  • Performance

    • Further reduction in allocations.

    • Various improvements to Shine Bug performance.

    • Improved performance opening Vitals, Consumables, and Priorities screens.

• Spaced Out! only

  • It is now possible to set work priority values on Landed payloads.

  • Fixed Radbolt Engine not saving slider settings.

  • Fixed a bug where Loner trait on a Duplicant was not providing a boost on Piloting skill when that Duplicant was alone.

  • Fixed Drillcone mining rockets failing to mine on round trip flights to a Space POI in orbit of their origin asteroid.

  • Fixed the incorrect position of some objects when the starmap is opened.

• Frosty Planet Pack

  • Regal Bammoth Crest mass adjusted to match the mass of the Gold Amalgam yielded from passing it through the Rock Crusher.

  • Bonbon Trees now show a range of wood per cycle in the database to show how much wood per cycle you can produce when one or all of its branches are growing.

  • Fixed mass issue in a POI on Sweet Ceres Asteroid.

• Bionic Booster Pack

  • The progress of trying to reanimate a powerless Bionic Duplicant will no longer reset if the task is abandoned before it's completed.

  • Power Bank Dischargers will no longer generate heat when there is no power consumer drawing power from them.

  • The Lubrication Station's description now mentions Gear Oil as its input, rather than listing only Phyto Oil.

Modding

• Changed some Tunning static variables related to Duplicant Attributes to no longer be marked as "readonly" to facilitate modding on those.

• Added GlobalStringBuilderPool.

• GameplaySeason implements IHasDlcRestrictions.

• Renamed GameTags.StartingRefinedMetalOres to StartingRefinedMetals.

Changes since last public testing hotfix

Spoiler

• Added new lab asteroid RelicAAAAAAAGHH

• Fixed Rhex monument artwork..

• Added victory cinematic sound.

• Fixed Metal Rich and Metal Poor world traits not applying correctly to Nickel Ore

• Updated artwork for Demolior Debris, Liquid Demolior Debris, Molten Demolior Debris space destinations/space POIs

Klei Fest!

Our annual publisher sale is back! We've got a bunch of updates and discounts for you. 

• An free base game update for Oxygen Not Included including bug fixes, QOL changes, and a new building!

• The Release of The Prehistoric Planet Pack DLC for Oxygen Not Included

• The Lowest prices ever for many Klei Entertainment games

• Including the Klei Fest Bundle for an additional 40% off!

• Announcing Away Team - A new game set in the Oxygen Not Included Universe!

• Localization updates for Lab Rat

• Beastieball has a big new Milestone update including new team titles, new language support, new Beastie animations and more!

• Rift of the Necrodancer + Hatsune Miku DLC release. 6 songs + 1 free track!

Check out the sale page here: 

https://store.steampowered.com/sale/kleifest2025

We've also announced our new game - Away Team!

Away Team is a new Oxygen Not Included adventure. Take control of a duplicant and harness a new world where every tile is simulated.

Mistakenly shipped off on a research rocket, you find yourself in a strange new world where you must take control of the simulation to survive and thrive.

The world reacts to your every action. Harness chemical reactions, fine-grained temperature simulation and convection, liquids that evaporate, and more.

You will need to design and construct solutions to process, refine and build your way out of this ordeal in order to survive and complete your mission imperatives.

Oh, and maybe a little oxygen is included.

Check it out on Steam and Wishlist now!

 [dynamiclink href="https://store.steampowered.com/app/2168390/Away_Team/"][/dynamiclink]

View full update

​

We've got dino-mite news: The Prehistoric Planet Pack DLC comes out this Thursday, June 12th! It'll be available on Steam, WeGame, and Epic. 

This DLC is a tribute to everyone who grew up wondering what it'd be like to coexist with dinosaurs... and whether or not they'd survive a dramatic encounter with an impactor asteroid! (It wasn't just us, right?)

Uncover an archaic starting world where cold-blooded Rhexes snack on smaller critters, heavy-footed Lumbs shake ripe crops right off their plants, and gigantic Jawbos lurk deep in fetid wetland pools. Lush fruit vines sprawl over walls and ceilings, while carnivorous flowers lure pesky Gnits to their doom... and produce valuable Amber. Elsewhere on the planetoid, strange plant buds deliver forth farm-supporting pollinator critters. 

Duplicants can lug oversized racks of sinewy dino meat over to the new smoker building to make enough mouth-watering brisket to feed all their friends. They'll need their energy, if they're going to build a surface defense station capable of blasting the impactor asteroid out of the sky before it hits! 

Plunge into this primordial planetoid now: Play the free beta version here today! The beta will be playable right up until the DLC goes on sale. Remember to back up your saves first. 

The Prehistoric Planet Pack will be out on Steam, WeGame, and Epic at the same time. It will cost 7.99USD.

For more info on The Prehistoric Planet Pack's content and features, check out our store page here.

[dynamiclink href="https://store.steampowered.com/app/3655420/Oxygen_Not_Included_The_Prehistoric_Planet_Pack/"][/dynamiclink]

F.A.Q.
Which platforms will this DLC be available on? 
Steam, WeGame, and Epic. 

How much does it cost? 
7.99USD

Do I need to own the base game? 
Yes, you will need to own Oxygen Not Included in order to play this DLC content. 

Do I need to own Spaced Out! DLC in order to play this DLC content? 
No. 

Klei Fest Kicks Off June 12th!

Summer is nearly here, and that means the return of Klei Fest! We're gearing up for our annual celebration with big discounts and all kinds of exciting news, updates, and miscellaneous happenings across the Klei universe.

You can look forward to updates for Lab Rat, Beastieball, Oxygen Not Included, and Don't Starve Together. We're also releasing The Prehistoric Planet Pack DLC for Oxygen Not Included, as well as revealing a brand-new game!

If you haven't already, be sure to follow our Steam developer page so you don't miss a thing!

Fixes
All Versions

• Fixed Dehydrator producing incorrect liquid byproduct.

Fixes

• All versions
  • Fixed a crash that sometimes occurred when a Water Cooler was destroyed while a Duplicant was seeking refreshment.
• Bionic Booster Pack
  • Fixed Flydo getting stuck while trying to pick up things it could not get positioned above.

Fixes
All Versions

• ​​​​​​​Fixed issue causing some symptoms of Slimelung to persist after the disease had been cured.

Changes and Improvements
All versions

• Updated localizations.

Fixes
Bionic Booster Pack

• Fixed Flydo not shutting down when its power bank was depleted if there were high-priority chores to do.
  
• Fixed a crash when loading workshop translations last updated in 2020 or earlier.
  
• Fixed issue where Slimelung would cause a Bionic Duplicant's breath to decrease incorrectly.
  
• Fixed issue causing Bionic Duplicants to appear to contract Food Poisoning despite being immune to all the symptoms.
  
• Fixed Bionic Duplicant Radiation Sickness status item tooltip showing effects that do not apply to Bionic Duplicants. Note that while they are immune to the ‘Stamina’ and ‘Bathroom Use Speed’ effects of radiation sickness, Bionic Duplicants do suffer athletics penalties at all tiers of radiation sickness.

Modding

• Fixed typo in ModDevLog of requiredDlcIds/forbiddenDlcIds when testing dev mods.

Hello, friends!

Our March 2025 Quality of Life update is out today! This free update squashes some long-standing bugs and improves UX in all versions of the game. It also includes DLC-specific additions, bug fixes, and improvements for The Bionic Booster Pack. 

Highlights of this minor update include:

QoL & bugs for all versions
Weve introduced a smarter search function in the build menu and Research screen. It uses fuzzy search, synonym matching and even initialism—for example, you can now search "mm" to find the Microbe Musher—to help you find what youre looking for faster. Improving searchability is an ongoing process, and we hope to keep building this out in the future.

Another thing thats got us all in a fizz is the new range of visual effects applied to liquids: a mild "underwater"-type distortion becomes increasingly conspicuous as the liquids temperature rises, eventually leading to bubbles that intensify as it approaches its boiling point.  

Weve also changed the way that liquids get displaced in the sim, to fix some liquid duplication bugs. 

The database continues to expand, and now contains entries for our quirky little Duplicants—including basic health metrics and links to the various systems that keep the crew alive and well. 

The Bionic Booster Pack
We fixed a bug where the Flydo fetch drone would fly erratically on autopilot when it depleted its power bank supply. We also updated the Skill screen for Bionic Duplicants to add an overview of all the boosters available on that world. You can even assign or unassign boosters directly from that screen. Bionic Duplicants are now susceptible to diseases, too! 

The Frosty Planet Pack
Bammoths wont run into walls anymore, and there are now themed Monument blueprints for this DLC in the Supply Closet! 

Summary
We fixed a bunch of bugs (including some veteran ones like liquid duplication!), made our search functions more responsive, added visual feedback to liquids that are heating up, improved booster management in The Bionic Booster Pack, and added cosmetic blueprints to The Frosty Planet Pack. 

If your mods are breaking or you need a little extra time before switching over, you can opt in to the temporary, unsupported Previous Update branch.

Help us track down new bugs to fix, or click here to send us your feedback and ideas! We appreciate all your input. 

Full patch notes below. 
 

Changes and Improvements

• All versions
  • Smarter search text matching in the Research screen and build menu
    • Search inputs (e.g. a building’s category, recipes, common name synonyms, and small typos) now return more useful results.
    • Initialisms can also be used, e.g. mm will match Microbe Musher.
  • Updated liquid visual effects, including special visuals when approaching boiling points.
  • Updated Solid Crude Oil tile and ore art.
  • Building requirement text and status items now better indicate the skill or booster required to operate them.
  • Database
    • Duplicant and Bionic Duplicant database entries now contain more information about their survival and advancement needs, and links to relevant systems. These are works in progress.
    • The Health entry in Systems now includes information about Sleep requirements.
    • The Printing Pod database entry now shows the art for the building.
    • Added building icons to building category database entries.
• Spaced Out! only
  • Worldgen: Minor changes to mining room POI on Superconductive Asteroid. Removed oxygen and changed the material of the doors.
  • Duplicants incapacitated by Deadly levels of radiation will now have their exposure severity reduced to Extreme upon entering a triage cot.
• The Frosty Planet Pack
  • Fixed an issue that was causing Bammoth animations to clash with walls.
• The Bionic Booster Pack
  • Updated bionic boosters Skill screen UI to allow for booster management.
  • Bionic Duplicants now have the capacity to actually get sick from germ exposure.
  • Fixed a bug where Bionic Duplicants consuming disease-tainted oxygen canisters were not transferring the disease to their internal oxygen tanks.
  • The Gunk Extractor now applies germs to Bionic Duplicants after use.
  • The room bonus from the Gunk Extractor now lasts 3 cycles.
  • Added a Diagnostic that signals when an Atomic Power Bank is nearing the end of its lifetime. (Spaced Out!)
  • Building requirement text and status items indicate the bionic booster required to operate them in lieu of skill assignment.

• All versions
  • Fixed a bug where liquids on special tiles (e.g. airflow tiles) were being displayed as if they were floating above the tiles instead of sticking to them.
  • Fixed Biobot, Rovers (Spaced Out!), and Flydos (The Bionic Booster Pack) choosing to idle over lower priority chores.
  • Fixed a bug causing the element of worn out Atmo Suits to change to Dirt after being repaired.
  • The Power Control Station building no longer describes itself as being a necessary part of a power plant.
  • Fixed a bug where Duplicants could slip when walking over a mesh tile that had a slippery liquid inside.
  • Fixed Bottle Emptier not emptying milligrams.
  • Fixed an issue with the UI scale on 16:10 monitors causing the UI to appear small even at 200%.
  • Fixed an issue that could happen when launching the game on Macs, when installed on a non-native file system such as FAT32/exFAT.
  • Fixed an issue where an Incubator whose egg had recently been removed would request the egg when loading the save again.
  • When the power circuits are rebuilt (e.g. network is disconnected or reconnected either via construction, destruction or circuit breaker):
    • The current load on all circuits is now set to an invalid value (-1)
    • the wire sidescreen will display this state as "?"
    • the wattage sensor will now not change its automation state until it receives a valid value from the wire it is monitoring.
  • Power icons on the Power overlay for under construction and placement preview are now consistent.
  • Fixed an issue causing critters to recalculate their food target more often than necessary.
  • Fixed the top of the Fish Feeder not visually updating correctly.
  • Fixed Pacu not eating seeds from a newly built Fish Feeder.
  • Fixed Sweepy sometimes not picking up an item when moving.
  • Fixed inconsistent text alignment on suit dock sidescreen buttons.
  • Simulation
    • Fixed liquid duplication caused by a liquid falling and displacing a neighboring cell simultaneously.
    • Changed the way liquids are displaced in the sim, preventing liquid duplication in certain situations.
  • Performance
    • New conduit flow computation algorithm to improve worst-case performance when rebuilding liquid/gas conduits.
    • Performance improvement: Reduced number of memory allocations per frame in various systems of the game.
    • Reduced memory allocations during Auto-Sweeper update.
  • Database
    • Fixed missing link on "Buildings->Category".
    • The database entry shortcut icon in the Microchip and Data Bank UIs now correctly links to their respective database entries.
• Spaced Out! only
  • Fixed potentially spawning partial unit mass when transfer pickupables to debris.
  • Fixed space exposure surrounding a rocket interior not working correctly until save/load.
  • Added Data Analysis Research to the list of research types in Systems/Research, and corrected a typo where Interstellar Research pointed to the Orbital Research Center instead of the Virtual Planetarium.
  • Fixed an issue causing Duplicants with deadly levels of radiation sickness to repeatedly fall out of their hospital beds.
  • Fixed a crash that could occur when trying to deploy a dead Duplicant in a Trailblazer Module.
  • Fixed oversized click area on Launch Rocket UI button.
  • Fixed oversized click area on Abandon Ship Rocket UI button.
• The Frosty Planet Pack
  • Fixed Bammoth navigation to prevent them from running into walls.
  • Fixed an issue where Ice Meteor Showers didnt contain meteors if The Frosty Planet Pack was not installed.
• The Bionic Booster Pack
  • Fixed Flydos moving erratically when their power bank was depleted.
  • Fixed Flydos sometimes not being eligible for errands.
  • Fixed a crash related to power banks depleting in a Flydo.
  • Fixed a bug that caused Bionic Duplicants to not use assigned Gunk Extractors if a hospital room existed in the base.
  • Fixed a crash that could occur when a Bionic Duplicant leaves a rocket interior to land in a Trailblazer Lander.
  • Fixed inconsistency with Flydo recipes and mass of Flydo.
  • Fixed newly crafted Flydos having a missing status item.

Supply Closet

• The Frosty Planet Pack
  • Added DLC-themed cosmetic blueprints for monument parts.

• A significant refactor of the DLC system was made. Attempts were made to prevent mods from breaking, but some will need to be updated by their creators.
• Deprecated supportedContent in mod_info.yaml, instead use requiredDlcIds and forbiddenDlcIds. See the stickied post in the modding forum for more information.
• A large number of methods were marked [Obsolete] with descriptions of what to switch to. Please check your warnings and turn on warnings as errors.
• Added IHasDlcRestriction interface. The intention is for this to be implemented anywhere requiredDlcIds/forbiddenDlcIds are used.
• Specifying DLC requirements for IEntityConfig has changed.
  • Deprecated IEntityConfig.GetDlcIds().
  • DLC restrictions are now optionally specified by implementing IHasDlcRestrictions.
  • Mods implementing GetDlcIds are detected and assumed to be in the old AVAILABLE_<something> format, and loaded correctly.</something>
• IEquipmentConfig implements IHasDlcRestrictions with similar considerations as IEntityConfig.
• IBuildingConfig implements IHasDlcRestrictions.
• ComplexRecipe now supports forbiddenDlcIds too.
• Added IHasDlcRestrictions to a number of other classes.
• Deprecated all SaveLoader DLC methods. Added static methods to Game for checking DLC state of the current save; use this instead.
• Removed support for pre-Spaced Out! mods missing mod_info.yaml. The mod_info.yaml file has been required in order to upload a mod since 2021 and the majority of affected mods no longer work.
• Mod screen:
  • Added tooltip explaining why a mod cant be loaded to the mods screen.
  • Added tooltip to mods on the mods screen to display their description defined in mod.yaml.
• Added translation support for name and description in mod.yaml. The fields can be either a string key or plain text.
• Changed codex yaml DLC checks to requiredDlcIds and forbiddenDlcIds (previously it was dlcIds and forbiddenDLCIds).
• FileSystem ignores filenames starting with "._" (AppleDouble format)

Since Last Update

• Fixes
  • All Versions
    • The water shader distortion effect is no longer affected by the camera zoom level.
    • Stabilize the ordering of items in the Research Screen and Build Menu.
    • Trim whitespace off the ends of search text to avoid excluding
    • matches due to whitespace differences.
  • Base game only
    • Fixed crash when using Triage Cot
  • Spaced Out!
    • Fixed oversized click area on Abandon Ship Rocket UI button.
  • The Bionic Booster Pack
    • Fixed inconsistency with Flydo recipes and mass of Flydo.
    • Fixed newly crafted Flydos having a missing status item.

 

View full update

 

Changes

• Bionic Booster Pack
  • Improvements to Bionic Duplicant oxygen tank refilling behaviors
  • Bionic Duplicants whose oxygen tanks are low during scheduled downtime will refill in cells whose values are at least above the "Breathable" threshold (see Oxygen overlay).
  • Critical/involuntary tank refilling now only starts when the oxygen tank is completely empty.
  • Bionic Duplicants now play the “Gasping for air” animation after refilling their oxygen tanks from empty.
  • Reduced the frequency with which Bionic Duplicants will reconsider their options when selecting the best cell to refill from.
  • Further aligned Bionic Duplicant suffocation breath recovery behaviors with Standard Duplicants for a better “near death” experience. 
  • Bionic Duplicants will avoid (though still consider) stacking on top of each other when selecting where to refill their oxygen tanks.

Fixes

• All versions
  • Fixed <!> not clearing on the building category if The Frosty Planet Pack or The Bionic Booster Pack are installed but not enabled in the current save.
  • Fixed crash that could happen when a Duplicant digs solid Tallow tiles painted in with sandbox tools.
• Spaced Out! only
  • Fixed a bug causing the game to freeze when entering the Temporal Tear or self-destructing a rocket with a significant amount of single-unit objects on board.
• Bionic Booster Pack
  • Fixed issue preventing the Plant Pulverizer from dropping the dirt byproduct of Phyto Oil production.Fixed crash that can occur when Flydo empties Interplanetary Payloads.
     

Changes and Improvements

• All versions
  Geotuner delivery errand type is now Research Supply.
• The Bionic Booster Pack
  Lavatories now have adjustable priorities so you can set the priority of unclogging a gunked lavatory.
  • The Priority setting for Bionic Duplicants to be rescued will now only appear while they are Powerless instead of at all times.  

Fixes

• All versions
  Fixed incorrect material name showing for some resources in world pop-up text when material is automatically changed.
  • Unrefined Oil database entry no longer implies that Phyto Oil can be refined into Petroleum.
  • Fixed a bug where repeatedly clicking on the Stress icon on the top left of the screen was not cycling through the list of Duplicants in the order that their names were listed.
  • Fixed issue causing database entries to show malformed 'Produced By' and 'Applications' rows for DLC-exclusive conversions.
  • Steam turbines no longer show previous output level visuals when disabled by automation. 
  • Fixed string formatting for destructive Duplicant notification tooltip.
  • Fixed a bug where the meter on liquid oxidizer modules was not working to represent the amount of liquid inside the tank.
• The Frosty Planet Pack
  Fixed a bug where the Bonbon Tree trunks that had a blocked pipe connected to them were not restoring their harvest ready animation after playing the unentomb animation.
• The Bionic Booster Pack
  Fixed crash that could occur when Bionic Duplicants were critically low on oxygen.  
  • Eco Power Banks no longer change their primary element from Abyssalite to Aluminum after recharging or exploding.
  • Insulated Flydo's battery storage so batteries would not melt when Flydo is in high-temperature environments.
  • Fixed a crash that happened sometimes with Bionic Duplicants during red alerts.
  • Fixed Robo-Pilot not requesting more Data Banks when destination changes, and upon landing.
  • Status item for Duplicants watching a Flash Mobber no longer shows debug text.
  • Fixed a bug where the yellow alert screen effect would stay on in a rocket if a Powerless Bionic Duplicant on board had its priority of rescue set to yellow alert, and continue to stay on after the rescued Bionic Duplicant had left the ship.

Modding

• Traits can now specify required/forbidden DLCs. This also fixes The Bionic Booster Pack Overjoyed/Stress traits being added in saves without the DLC. 

Fixes

• The Bionic Booster Pack
  
  • Fixed crash that could occur when selecting Robo-Pilot Module or Robo-Pilot Capsule.