Versions/U57-697549
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U57-697549 is an update for Oxygen Not Included released on October 31, 2025. Official Release Notes
Update Information:
Hi everyone,
It's time to start public testing for the November 2025 Quality of Life Update!
We took a break from paid DLCs to work on this free update that contains new critter morphs, a bioprinter story trait, buildings, performance improvements, cosmetic blueprints, and more.
Highlights include:
There are three new critter morphs. The Husky Moo is a biodiesel-producing Gassy Moo morph for all versions of the game, while the DLC-specific Blum Lumb produces algae (The Prehistoric Planet Pack), and the Shatter Flox can be shorn for glass (The Frosty Planet Pack).
The new Printerceptor story trait offers on-demand printing of certain items once unlocked and supplied with Data Banks and Printing Pod charges. This story trait is available on new games in all versions of ONI.
We've added a new lower-tier wood element called Plywood, along with a Plywood Press to manufacture it. For Spaced Out!, we made radbolt production easier, and tweaked how you can mine space POIs: resources are now first mined with a Drillcone, then gathered by rockets with a cargo module. Each POI starts with free-floating resources and data banks that can be gathered by cargo modules.
We've spent a lot of time working on behind-the-scenes tools to make and measure performance improvements. That includes rebuilding our profiler tool and setting up a new automated testing system that has already conducted countless tests! Large portions of pathfinding computation have been made asynchronous, leading to faster overall performance and significant improvements to Jet Suits.
There are over 100 new blueprints! They can be previewed in the Supply Closet and will become printable once public testing is over. Folks who own DLCs that have themed Printing Pod skins will find new matching Mini-Pod skins there.
We'll also be releasing a small paid collection of cosmetic skins soon. If your colony could use a little extra razzle-dazzle (or you just want to support continued development) that collection will be available for purchase on the same day that this free QoL update goes live.
This free update will be in public testing for about three weeks, to give extra time to test performance optimizations to core systems and allow mods time to update. If you discover bugs or have any feedback for us, ping us here!
Thank you so much for helping us test these changes!
Here's what you'll find in the update so far:
Features
- All versions
- Added Printerceptor story trait
- Note: By default only 5 story traits are selected to spawn in a new world. The Printerceptor will always be included in that default selection. It may be possible to select more than 5 story traits to include, but doing so increases the likelihood that worldgen may fail.
- Added Banquet Hall room type.
- Requires an Ornament to be displayed on a Pedestal or Display Shelf.
- Requires a Communal Table.
- Provides a large Morale boost.
- New buildings
- Insulated Door that provides the same amount of insulation as Insulated Tiles when closed.
- Communal Table
- Seats up to 3 Duplicants simultaneously. If a Duplicant dines with friends, they receive a +1 Morale boost.
- Required for the Banquet Hall room.
- Plywood Press, which transforms Plant Husk and Resin into Plywood
- Display Shelf, to display decorative objects and Ornaments (e.g. artifacts, story trait keepsakes) on walls.
- Added a Biodiesel Engine for rockets.
- Duplicants with the Crop Tending skill can now salvage Plant Husk when harvesting certain plants. This is in addition to those plants' usual products.
- Harvesting Gas Grass now produces a large amount of Plant Husk.
- Added a new biodiesel-producing Gassy Moo morph called the Husky Moo.
- Feeding Plant Husk to the Gassy Moo increases its chances of calling a Husky Moo.
- Added Plywood element.
- Added door sidescreen UI to set permissions for Rovers, Flydos and Biobots. There is also a section in that UI for Bionic Duplicants.
- All critters now semi-regularly play a happy or sad emote animation to show certain states and effects.
- Spaced Out! only
- Added a Research Module for rockets, which collects Data Banks from space POIs. The Data Banks are non-renewable. Existing saves will be upgraded.
- The Frosty Planet Pack
- Added a Flox morph called the Shatter Flox, which can be sheared for glass.
- Added a Wicker Door, which is an air permeable door made out of wood.
- The Bionic Booster Pack
- Bionic Duplicants now have a new Skill branch for Improved Hardware (immunity to eye irritation and popped ear drums) and Climate Control (immunity to chilly and toasty surroundings).
- The Prehistoric Planet Pack
- Added a Lumb morph called the Blum Lumb, that produces algae instead of peat. Lumbs will increase their Blum Lumb Egg chances when in presence of carbon dioxide.
- Added a Higby monument top to the Supply Closet.
Changes and Improvements
- All versions
- Mess Tables are now public by default. They will only be restricted to a particular Duplicant if explicitly assigned.
- Added Duplicant starting outfits selection widget to the new game character select menu and Printing Pod character select menu.
- The keyboard shortcut Ctrl + F now opens the build menu's Base tab and focuses on the search bar. If the build menu is already open to a different tab, typing Ctrl + F will focus on the search bar in the current tab.
- Several items have been added to the category of items that can be displayed on Pedestals. (E.g. Reed Fiber, Rhex Feather, Data Banks)
- Large rocket modules now use the wide delivery offset, making it easier for Duplicants to deliver to their storage.
- Created a new Missiles tech item in the Research screen and moved Meteor Blaster and Blastshot Maker there.
- Several buildings that use liquid in their animations were updated to show the color of the liquid being used, instead of always showing the same color.
- Wood material now provides a +50% Decor boost.
- The base decor values of the following buildings were adjusted proportionally down:
- Sauna
- Hot Tub
- Wood Tile (The Frosty Planet Pack)
- Wood Block (The Frosty Planet Pack)
- The base decor values of the following buildings were adjusted proportionally down:
- Jetsuits
- Significantly increased Jet Suits' movement speed, increased their fuel consumption, and reduced their CO2 output and temperature.
- Duplicants in Jet Suits prioritize flying over walking when both navigation options are available.
- Adjusted animations.
- Jet Suits now require a textile ingredient (i.e. Reed Fiber, Feather Fiber) to fabricate.
- Jet Suits no longer require Petroleum to fabricate initially, but must be fueled at a Jet Suit Dock before first use.
- Jet Suits can now be fueled by any Combustible Liquid.
- Jet Suits will now show small smoke particles on each thruster.
- Critters
- Shine Bug eggs now drop some Resin when cracked at the Egg Cracker.
- Items dropped by a critter upon death now spawn at the critter's body temperature.
- Dreckos now have 90% scale growth upon growing up.
- Crowding
- It will now be calculated based on space allocated to each individual critter, rather than assuming all critters are allocated the same amount of space.
- Aquatic critters will only consider other aquatic critters and eggs that are in the same pool as them when determining their Crowded status.
- The Crowded modifier is now relative to the critter's personal space requirement. That is, larger creatures will generally suffer a lower happiness penalty than smaller creatures when they inhabit the same room.
- The tooltips for the Crowded status now specify how many members of each critter are present, and how much space each of them occupies.
- The Flopping status for fish now displays in red font with an exclamation mark.
- Rooms
- Removed the light source requirement from the Laboratory room.
- Added "Banquet Hall" room type with high morale benefit.
- Reduced Mess Hall and Great Hall morale benefit.
- Added the Ornament object category. Ornaments are a special class of decor objects that can be displayed on a Pedestal or Display Shelf. This category includes Artifacts and Keepsakes.
- Any Room types that required high-decor items (decor items with +20 Decor) now require an Ornament displayed on a Pedestal or Display Shelf/ instead.
- Decor for Room requirements
- Planter boxes and decor plants no longer count as two separate decor items that contribute to a Room's requirements.
- An empty Planter Box will not count as a decor item.
- If a Planter Box contains a healthy decor plant, this combination will count as one decor item.
- If the Planter Box becomes non-operational (i.e. no foundation) or the plant wilts, it will not count as a decor item.
- Artables (e.g. sculpture blocks and blank canvases) will not count as a decor building until they have been completed by an artist.
- Pedestals and Display Shelves will not be considered decor buildings if they lose their foundation or are not displaying an item.
- Pedestals now have a negative status item "No Object Displayed" when they are not displaying an item.
- The "Incomplete Artwork" status item on sculpting blocks and blank canvases is now red instead of gray.
- Sandbox
- It is now possible to directly spawn all Solid Materials, Bottled Liquids, and Gas Canisters from the sandbox spawner tool.
- When placing a building in Sandbox mode, any plants covered by the building will now automatically be uprooted.
- Sandbox destroy tool now deletes falling liquid droplets.
- UI
- Stored items listed in the detail screen of a selected building are now grouped into items of the same category. Categories are collapsed by default. Individual items can be viewed by clicking to expand a category.
- Food items shown in a storage UI can now display icons to show whether the item is fresh / stale / deep frozen / refrigerated / spiced.
- Revised visuals for floating text popups that appear over a world location when Duplicants interact with it. Text popups are now a bit easier to read.
- Added floating text popups for fabricators whenever they complete an order
- The floating text popup that displayed when a Duplicant is delivering or picking up items now shows the icon of the item that's being interacted with.
- Adjusted Pedestal sidescreen layout UI and added categories.
- Improved search in the build menu.
- Added title header to the Storage Capacity Control sidescreen UI.
- The existing lore Inspect unlock button now has its own sidescreen header.
- Adjusted text formatting on the Skill Screen tooltips to make them more consistent.
- Small adjustments to the Supply Closet layout for better outfit previews.
- Duplicants' sidescreen Config tab now displays a Duplicant-specific tooltip. It used to share the same tooltip used in Buildings' Config tab.
- Scale Growth amounts shown in critters' UI are now named according to their sheared product. For example, a Rhex will show "Feather Growth 10%" instead of "Scale Growth 10%".
- Changed strings for Alt, Shift, and Ctrl in hotkey text to omit L/R (left/right). The specified modifier from either side of the keyboard will work.
- Made refinements to the Research Screen visuals.
- The Critter Flux-O-Matic story trait now more clearly communicates that scanning was successful, even if the scanned critter is one that has no morphs and/or the scan result doesn't contain new information about that species.
- Database
- Added a database entry for Organics in the Element Properties section of the database.
- Added a database entry for Slippery materials in the Element Properties category.
- The Element Properties database category and its sub-entries now have custom icons.
- Plant seeds which are also food ingredients now link to the database entry about the food ingredient, rather than the one about the plant they grow into.
- Plant database entries now have a subsection for their seeds, where you can see their applications.
- Plant seeds that can be transformed into foods (e.g. Millimet, Sleet Wheat Grain, and Nosh Bean) no longer have database entries in the Foods category. Instead, their associated recipes are shown in the subcategory of the plant they came from.
- Elements that sublimate or offgas now illustrate that transition in their database entry.
- The display of Brackene production in the Gassy Moo database entry now shows the Milking Station, to make it consistent with how we show sheared products.
- Database entries that describe Systems now contain links to relevant tutorials and videos.
- Microchips, Boosters, and Data Banks have been moved into a new Tech Components category in the database.
- Spaced Out! only
- Ground-based telescopes now produce a small number of Data Banks when revealing starmap hexes.
- Improved rocket interior background visuals while traveling through space.
- Starmap tiles are now referred to as "Hexes" consistently throughout the game, instead of sharing the term "Tile" with world tiles.
- Starmap changes
- Added an Organic Mass Field Space POI near the start. New saves only. This modifies all space POI positioning in seeds.
- Added Abyssalite and Granite to the Rocky Asteroid Field space POI. It no longer provides Copper Ore.
- Added Molten Lead to the Metallic Asteroid Field space POI.
- Resources mined using a Drillcone will now be stored as free-floating harvestable resources on that starmap hex, which means mining and gathering can be done separately.
- Space POIs start with 50 Data Banks each. This applies to existing saves too.
- Space POIs start with some free-floating resources, which can be collected without first being mined by a Drillcone.This applies to existing saves too.
- Minor art changes to some space POIs.
- When a rocket is set to do a Round Trip, the rocket will begin its return flight when:
- It reaches its destination and finds no resource available to be gathered by cargo modules, and/or
- It cannot mine a Space POI present in that starmap hex.
- Rockets with cargo modules that can gather from starmap hexes will now attempt to gather a bit of each resource at the same time instead of harvesting the entirety of one resource before starting to gather the next one.
- Added new UI sidescreens representing rocket cargo modules and resource gathering. These can be viewed by selecting rockets in the starmap.
- Drillcone description now specifies that it only frees up the space resources, and that a Cargo Bay or other transportation module is necessary for gathering them.
- All space artifacts now mention the need for an Artifact Transport Module, and link to the new Space Mining entry in the database.
- All Space POIs that can be mined for resources will start with some resources already free-floating and available for gathering.
- Radbolts
- Moved Radbolt Joint Plate to an earlier tech tier.
- Radbolt Generators now only consume electricity proportional to current radbolt production for values less than 480 watts/100 radbolts per cycle. Higher values continue to require only 480 watts.
- Radbolts stored in Radbolt Chambers or Radbolt Generators now decay significantly more slowly when the building loses power.
- Cargo Bay, Solid Rocket Port Loader, Solid Rocket Port Unloader, and Rocket Port Extension have been moved to the Solid Transport tech tier.
- The Space Travel database entry now contains information about space mining, and life support for rocket crew.
- Simplified and revised several rocketry-related UI sidescreens.
- The tooltip that appears when a destination is out of a rocket's range now includes information about both the rocket's current maximum range and its potential maximum range.
- Frosty Planet Pack
- Base decor value of the Wood Tile and Wood Block reduced to accommodate the new Decor boost given by building with wood material.
- Prehistoric Planet Pack
- The Mimillet's description now calls it a seed of a Mimika Bud, instead of a fruit. Removed the word "Seed" from the end of the description.
- Pollinator critters now have a "Going to Pollinate" status when they are on their way to tend to a plant.
- The notification that pops up when Demolior delivers the keepsake item now says "Artifact found" and specifies that the item came from Demolior.
- Minor improvements to Jawbo navigation.
Fixes
- All versions
- Potential fix for critters entombing themselves in tiles.
- Fixed an issue where Duplicants would sometimes become frozen in place when trying to equip an item on the floor.
- Fixed a bug where Duplicants were consuming Allergy Medication even when they didn't need it.
- Fixed balloon artist Duplicants freezing when they could not reach the Printing Pod.
- Fixed a crash that could happen with invalid buttons on game controllers.
- Fixed an issue with copy settings on farm tiles allowing plants which grow downwards to be assigned to unrotated farm tiles (i.e. in default "facing up" position).
- Fixed an issue where Liquid Hydrogen coming out of a Liquid Vent did not match the element color.
- Fixed shearables for large critters spawning inside of natural tiles. The sheared product will now spawn where the Duplicant is working.
- Fixed a crash that could occur when a critter dies in the arms of a Duplicant who is relocating them.
- Fixed Solid Sap ore art incorrectly using the Solid Resin art.
- Fixed an issue where a Duplicant wearing a partially configured cosmetic Atmo Suit blueprint would be invisible.
- Fixed a rare crash related to rooms being recalculated.
- Korean localizations have been updated to reflect translation feedback.
- Jetsuits
- Fixed a bug that was causing Jet Suit movement speed to be inconsistent depending on movement direction.
- Fixed Duplicants playing the incorrect idle animation while in a Jet Suit.
- UI
- Fixed an issue causing the Element Filter sidescreen search field to sometimes clear unexpectedly while unpaused.
- Fixed an issue causing the Meter Control sidescreen limit field to sometimes clear unexpectedly while unpaused.
- Fixed the sort order for buildings in the build menu.
- Critters in the sandbox Spawner menu now display the default critter and not a morph icon.
- Fixed an issue where a controller would pan the Research screen while it was closed.
- Fixed Element Properties database entry layout.
- Cleaned up stray paint in Brackene UI state.
- Database
- Fixed an issue preventing Tutorial Videos from being visible in the Database
- Fixed broken database icon links for:
- Airborne Critter Trap
- Wattage Sensor
- Duplicant Motion Sensor
- Large Cargo Bay (Spaced Out!)
- Critter Cargo Bay (Spaced Out!)
- Large Liquid Cargo Tank (Spaced Out!)
- Large Gas Cargo Canister (Spaced Out!)
- Wood Tile (The Frosty Planet Pack)
- Snow Tile (The Frosty Planet Pack)
- Dried food items now have database links to the rehydrated versions of their food. (E.g. Dried Frost Burger link will lead to Frost Burger database entry.)
- Fixed an issue causing Critter Flux-O-Matic logs to be missing for:
- Sweetle (Spaced Out!)
- Grubgrub (Spaced Out!)
- Flox (The Frosty Planet Pack)
- Bammoth (The Frosty Planet Pack)
- Removed some deprecated recipes from the database.
- Spaced Out! only
- The Drillcone UI sidescreen progress bar no longer animates while the Drillcone's diamond supply is exhausted.
- Fixed an issue where a Radbolt would sometimes not hit a critter.
- Fixed Plug Slug animation in the Critter Cargo Bay.
- Fixed a typo where the Spacefarer module's input port said "Nominal" instead of "Normal" after receiving input.
- Fixed a minor text display issue where text in the Radiation diagnostics panel was not displaying in its correct formatting.
- Fixed a bug where artifact POIs in the starmap didn't show a description.
- Fixed Payload Opener requesting less than whole units of payloads.
- Fixed a crash that occurred when opening the Skills screen and selecting a Duplicant who recently drank at a Water Cooler and used a Party Line Phone to talk to a Duplicant on another world, while playing with Chinese localization enabled.
- The Prehistoric Planet Pack
- Fixed Jawbo flopping into walls.
- Fixed a typo in the description for the Relica starting world Lab challenge.
- Sweatcorn is now consistently referred to as a vegetable.
- Mimillet is now consistently referred to as a seed.
- The Critter Sensor now counts Gnit Larvae.
Performance
- Reworked asynchronous pathfinding system with significant improvements for Jet Suits.
- Optimized many core internal systems of the game by reducing memory allocations and making them generally more efficient.
- Significantly reduced the number of memory allocations per frame, which resulted in a slightly smoother framerate. This is the groundwork for a future optimization.
- Optimized small graphs used in Diagnostics, All Resources Panel, and top left area beside the Asteroid Clock.
- Improved performance of objects being deleted, which was causing some performance issues in large bases deleting ore chunks.
- Fixed a performance issue where opening various screens (Vitals, Consumables, All Resources etc.) would cause a performance impact even when closed.
- Reduced performance hitch when opening the Consumables screen for the first time in a play session.
- Improved performance of sandbox Destroy tool.
- Improved performance on post processing effects code whenever there was none in use.
- Improved performance of diagnostic notifications' bouncing animation.
- Minor optimization to Solar Panels.
- Minor optimization to Gulp Fish.
Modding
- Significant changes to the types of objects passed as part of events, notably value types such as bool and int are now passed as a new Boxed type to avoid unnecessary allocations. See this post for a more detailed explanation.
- Changed how the StateMachineUpdater handles render buckets. They now update at most once per frame instead of multiple times if the framerate is slow.
- Fixed a crash that occurred when loading dll mods on mods installed on exFAT drives on Mac OS.
- Fixed an ordering issue with ModUtil.AddBuildingPlanScreen with option BuildingOrdering.Before.
- RoomConstraints.LightSource has been deprecated with the removal of the light requirements on the Lab room. It is recommended to update any reference to GameTags.LightSource instead. The room constraint is deprecated and no longer supported.
- Critter animations were broken up into build and animation files similar to how Duplicants work.
- Upgraded Unity to 2022.3.62f2
Supply Closet
- Added Jet Suit blueprints.
- Added Mini-Pod blueprints.
- Added default Duplicant outfits and clothing.
- Fixed missing audio on some building blueprints.
- Fixed audio not playing when switching building blueprints while the building is playing an animation.
- Larger and clearer category buttons in the Wardrobe/Outfits browser section.
- Improved blueprint sorting.
- Description for all clothing items in the Supply Closet now reads "This blueprint can be worn by any Duplicant", to communicate the lack of restrictions while clarifying that some items (i.e. Jammies) are all-in-one outfits that can't actually be combined with other pieces.
What is public testing?
"Public testing" means players get to test-drive new content early and give us feedback and suggestions before it goes live. Because this is an unfinished and in active development version of the game, it's pretty likely you'll encounter bugs, crashes or balance issues while playing these builds. We'll try to fix any problems that crop up as quickly as we can, but it's possible you'll lose progress in your games while playing on the Testing branch.
Regarding performance, the Testing branch has additional debugging tools enabled to help us track down crashes. This makes the game run more slowly than the live version of the game.
Please also be aware that once a save is loaded in the Testing branch, it cannot be reopened again in the previous Live branch or previous builds.
Do I have to play the public testing build?
Nope! If you'd prefer to only play a stable build, you can continue to play in the current Default branch until the game launches in full. Playing the Open Testing build isn't necessary, but it helps us a lot to receive your feedback and reports - if you're interested, try it out!
How do I become a public tester?
There's no sign up or registration for becoming an open tester. If you own Oxygen Not Included and want to join the Testing Branch, all you have to do is play the Open Testing build on Steam.
How do I play the public testing build?
You can switch your branch on Steam using the instructions below:
How to change branches in Oxygen Not Included (Steam)
- In Steam, click on Library > Games.
- Scroll down to Oxygen Not Included.
- Right-click and select Properties.
- Go to the BETAS tab.
- In the dropdown, select the name of the branch you want to play. In this case, the branch name is "public_testing"
- This branch does not require a password.
- In that same Properties window, go to the Local Files tab and press "Verify Integrity Of Game Cache."
- Your game will be updated to the the previous branch.
- Launch and play Oxygen Not Included
You can join in the Discussion Topic here.
If you run into a bug, please visit the Klei Bug Tracker.