What changed in Oxygen Not Included in 2021

Customize new modular rockets to explore the newly overhauled Starmap with mid-game Rocketry options.

The Oxygen Not Included community celebrates the full release of the Spaced Out DLC.

The multi-world DLC is now available on Steam, WeGame, and Epic Games Store.

Manage multiple colonies simultaneously and switch between new planetoids in real-time.

Meet new fuzzy friends that may assist in the colony if treated well.

Discover a new universe with unfamiliar biomes, valuable resources, and freshly designed tech.

Harness energy from new radioactive elements and ambient radiation to power nuclear machines.

Improvements to the UI, like updating the cluster selection screen to show all world traits in a cluster in the right column when the left column’s header is selected.

Unification of the base game and Spaced Out! codebases (Breath of Fresh Air update, aka The Big Merge).

Updates to the Mod system and lots of Mod support work.

The Spaced Out! DLC for Oxygen Not Included officially launches on December 16th.

Introduction of Plant mutations.

Addition of new planetoids in all clusters.

Introduction of Nuclear, Radiation and Radbolt systems.

Introduction of Space mining.

Introduction of new Spaced Out! and Classic-style clusters for a total of 18 clusters to choose from.

Improvements to rocketry mechanics, modules and fittings.

Numerous Rocket interior improvements.

Various bug fixes and quality-of-life improvements included in the update.

The impact of radiation on plants and buildings has been reduced.

Restored base game buildings including Space Scanner and Enclosed Telescope.

All radiation emission sources have been significantly increased, making Duplicants more vulnerable to radiation sickness.

Radbolts can now be safely stored in the new Radbolt Chamber building, which requires automation to release radbolts.

Four more Classic-style clusters added: The Badlands, Volcanea, Arboria, and Aridio.

An automation port was unintentionally added to the Refrigerator due to a previous bug fix.

Warp destination area was spawning too close to the bottom of the map.

Greatly reduced the rate at which Radbolts decay while traveling, allowing for longer distances.

Introduced a new series of clusters and asteroids with varying degrees of difficulty for players.

Added the Radiation Lamp and Manual Radbolt Generator to the Radiation category.

Renamed Cosmic Research to Data Analysis Research, now generated by processing Data Banks.

Addressed a crash that could occur when a Beeta attacked a critter in Spaced Out!

Addressed various bugs as part of the update.

Added four new Spaced Out! centric Duplicant traits, some with space-specific characteristics.

Implemented changes to increase overall frame speed and consistency.

Reintroduces the world traits system to Spaced Out, modifying world generation with over 20 different traits.

Added several new Spaced Out! specific Achievements viewable in the 'Colony Summary' screen.

Database entries for elements and critters improved to include consumed and produced resource amounts.

Upgraded the frigid 'Rime' cluster to be compatible with Spaced Out, now available in the 'Classic' destination category.

Updates Party Line Telephone strings.

Fixed rare crash that could occur when Experiment 52B eats food.

Added Party Line Telephone to the tech tree.

Fixed crash loading saves where a Saturn Critter Trap was in the middle of venting.

Morale bonus for chatting on the same world changed from 3 to 2.

Updated Party Line Telephone animations.

Re-added BuildingDef.isSolidTile and marked it as obsolete.

A recreation building for Duplicants to communicate over long distances with morale bonuses.

Transmit automation signals between worlds with limited range.

New artwork for buildings that consume Radbolts.

A solid tile that allows Radbolts to pass through one-way.

A couple of crash and bug fixes included in this update.

Rockets have been made faster, with some range and height boosts; Radbolt engine range reduced.

Fixed issue causing Duplicants to occasionally duplicate when using Trailblazer modules.

Fixed issue where Spacefarer Conduit Ports could output gas/liquid to the wrong location.

Addressed an issue some users were reporting regarding cursor loading failures.

Main menu UI updated in preparation for the next update.

A tileable sleeping arrangement with a low quality ladder, allowing multiple beds to be stacked for vertical dormitories.

Various bug fixes and polish improvements have been implemented.

Allows Duplicants to flush their waste directly into the world behind the toilet seat without outbound plumbing.

Liquids and gasses can now be piped directly in-to and out-of Spacefarer Module interiors, allowing venting into space during flight.

Rockets can now be evacuated using the 'ABANDON SHIP' sequence, causing the rocket to explode and launching Duplicants in Escape Pods.

Resolved various issues introduced by the Breath of Fresh Air update, including worldgen fixes.

Introduced a new Location Sensor to manage Duplicant facility usage inside rockets.

Added a large-sized Swamp Start option for Classic Cluster gameplay.

Introduced variable sunlight intensity per world affecting solar panel effectiveness and sunburn risk.

Added new lore entries to the Codex.

Addressed issues related to Space Scanners.

Added two new songs to the Spaced Out! soundtrack.

Biome sizes restored to their previous size.

Restored Barbeque to the consumables menu.

Fixed issue where space destination resources were not reserved by rockets.

Meteor Shower background effects no longer show when meteors aren't falling.

Rocket animations are no longer cut off when rendered above the buildable area.

Removed Spaced Out! Graphite recipe from the Rock Crusher and its codex page no longer crashes.

Fixed Oceania generating without Oil Reservoirs.

Refrigerator now produces less heat when in Power Saver mode.

Fixed issue preventing Critter Whisperer and Moovin' On Up achievement checkbox progress from updating in the UI.

Removed excess width of overlay legends UI.

Improved vertical spacing of diagnostics and pinned resources UI.

Changed Cobalt Ore Atmo Suit to Cobalt.

Fixed issue preventing wild and domesticated critter report data from being recorded and presented.

Sight-Seeing Module no longer releases an assigned duplicant while in space.

Resolved inconsistency in Solar Panel/Heavi-Watt Wire placement. These two buildings can once again be built on top of each other.

Fixed crash clicking on the Bio tab if a duplicant had a rocketry interest, which is not in the base game.

Fix issue preventing right-click dragging on the left half of the screen.

Gas and Liquid cargo bays changed back to their original 1000 kg storage limit.

Fix doubled-up music when worldgen fails.

Fix crash when switching from base game to Spaced Out if the DLC wasn't previously installed.

Added a few more mutually exclusive Duplicant traits.

Rocketry building placement restrictions returned to expected 'stacking' restrictions.

Non-command rocket modules launch and land correctly.

Fixed issue preventing Command Capsules from sending green automation signals when their flight path was blocked.

Restored priority control settings to Solid Oxidizer Tank.

Fixed issue where rockets returning from a mission did not properly land.

Fix crash that could prevent saves with Space Scanners from loading.

Removed Rocketry skill since it's only used in Spaced Out!

Updated the update timer in the main menu for next update.

Fixed issue where the Priorities screen was missing the prioritize/deprioritize all buttons.

Fixed issue with 'Enable Proximity' button on the Priorities screen not being clickable.

Added 'Clear all pinned resources button' to pinned resources panel header

Fixed issue sometimes causing oxidizer tanks to drop their contents of load.

Don't crash the game if a mod has a typo in mod.yaml or mod_info.yaml.

Fixed issue where rocketry buildings under construction could not be cancelled.

Cargo bay module strings restored to their expected base game versions.

This also resulted in a missing Deconstruct button on the Command Capsule.

A low-tier suit that allows Duplicants to work longer in low-oxygen areas.

Most Conveyor Rails techs moved one tier earlier in the tech tree.

Base game and Spaced Out! codebases unified for simultaneous updates.

Updated Diagnostics panel and Resource screen for better gameplay management.

Available in the base game (off by default), adding upkeep costs for suits.

New debuffs related to chlorine and other gases and liquids.

Allows sending precise amounts of material down a pipe, manually or using automation.

New Modding API to help future-proof mod development.

Upgraded version of the Unity engine implemented.

New traits that grant skills to Duplicants right out of the printing pod.

Refrigeration made easier and more effective, removing exploits and creating natural progression for food preservation.

Allows Duplicants to destroy Gravitas ruins.

Fixed a crash some OSX players are experiencing by removing the non-functioning native build for Apple Silicon/M1.

Oxygen Masks no longer crash in Base Game

The public_testing branch is being updated with the latest changes.

Version numbers for Spaced Out! have been increased to resolve mod loading issues.

Food storage and refrigeration mechanics updated to be consistent across both game versions.

Introduction of 'Stinging eyes' and related debuffs for caution with chlorine.

Suit durability mechanics added, toggled off by default in game settings.

Meter Valves are now included in the Base Game.

Demolition skill now available for all players.

Significant technical changes may require mods to be updated.

Updates to the Diagnostics panel, Resource screen, and other UI elements for consistency.

Oxygen Masks are now part of the Base Game.

Shuffling of the tech tree, moving most Conveyor Rails techs one tier earlier.

Introduction of new traits, including skill-granting traits.

Updated to the next major version of the Unity engine for ongoing support and development.

Modders are advised to update their mod_info.yaml for best compatibility during the Harmony 2.0 rollout.

Modders need to change 'using Harmony;' to 'using HarmonyLib;' and update their OnLoad method and .net target.

The game will ship Harmony 2.0.4.0 on the Public Testing branch, requiring modders to update all .dll mods.

Fixed crash caused by searching diagnostic screen while looking at a rocket interior world.

Refreshed 'Mine The Gap' update name in main menu image header.

Fixed issue where old saves would not have Space POIs added until unpaused.

Fixed bug where 'Satellite Asteroid Field' space Point of Interest had invisible art.

Fix crash when toggling compost on mutant seeds.

Gas Grass is now a normal seed producer for Spaced Out.

Only play the 'launch ignition' animation on rockets when taking off, not landing.

Pause screen now appears above other screens.

Symbol tinting/scaling works for all plants now, creating new visual differences for mutations.

Saturn Critter Trap no longer says it can mutate its seeds.

Fix case where rocket ports would appear to be offline even though they were loading or unloading a rocket.

Extreme temperature borders now have a less extreme temperature in the middle.

Fix a case where multiple rockets launching on separate worlds could emit gasses into the wrong world.

Sleet Wheat and Nosh Sprouts now roll for mutations across their entire crop.

Hooked up missing Saturn Critter Trap Seed artwork.

Fixed border temperature gradient sometimes having its temperatures swapped.

Visual enhancements made to Rocket Port Loaders.

Resolved issue allowing Duplicants to pick items through walls.

New biome introduced to enhance gameplay with radiation mechanics.

Plant sorting on planter box sidescreen fixed for consistency.

Multiple crash issues involving rockets and launchpads addressed.

Refrigerated food now lasts 5x as long; new preservation mechanics implemented.

New feature allows specialized crop development through radiation exposure.

Gas, Liquid, and Conveyor Meter buildings introduced for material management.

Enhanced rules for guaranteed POI spawning to reduce failures.

Identifies traits of mutant seeds for optimized farming.

Corrected Codex entries for food preservation times.

Introduction of new plant types and a Cryotank for storage.

New sounds for various actions including Mud and Radbolt interactions.

Internal physics of Research Reactors revised for better performance.

Marshy Asteroid now always has at least some Jungle.

Improved border temperature gradient in extreme temperature cases.

Fixed issue that could occur when revealing asteroids with liquid surfaces.

Improved Abyssalite border drawing to prevent small amounts of magma appearing on the wrong side of the border.

Updated Russian translations.

Prevent terrain 'features' from drawing over adjacent biomes of a different type.

Improved preventing POIs breaking high temperature borders.

Rockets are once again able to fly through Rocket Platforms and other rockets - though they cannot idle overlapping with them.

Increased water mass on Water Asteroid to prevent significant water receding due to liquid compression.

Fixed an issue where the starting asteroid in Classic Style Terra Cluster generated few or no Oil Reservoirs.

Slight improvement to spawning POIs in the magma core of the Marshy Asteroid.

Don't spawn more germs than are present for falling water.

Can now transport items in Edible, Cooking Ingredients, and Medicine categories.

No longer drown or die when unsupported; go into a 'disabled' state instead.

Moved Solid Rails earlier and Cryofuel Propulsion and Monuments techs to a higher tier.

Radioactive elements now emit radiation in the world.

Can now be stored in storages under that category.

Now samples calls near the top of the building for gas venting.

New radiation technology for space exploration.

Increased to 150kg.

Rockets can't launch without one; if destroyed in flight, rocket travels at half speed.

Icon now matches overlay icon.

Resolved crash when selecting a rocket destination on the edge of the starmap.

No longer pick up dirt with the payload.

Now properly tints on overlays.

Allows sending resources between asteroids.

Prevented exhaust from leaking into rocket interiors.

Guides Payloads to a specific spot on a planetoid surface.

Faces now change when sick, sunburnt, etc., including new Hypothermia faces.

No longer emit radiation when not digesting ore.

Adjusted for consistency.

Resolved flickering issue when launching a rocket.

Now appear in front of buildings.

Research Reactor begins reacting with a minimum of 0.5kg fuel and stops reacting when fuel drops below 0.25kg.

Restored Medical Pack recipe to Apothecary.

Adjusted Research Reactor construction time.

Large Solid Oxidizer Tank is now prioritizable.

Beeta Hive animation updates and fixes.

Adjusted Radioactive Contaminant count on Research Reactor's nuclear waste output.

Deprecated Virtual Planetarium building in Spaced Out! until a new utility is implemented.

Fixed crash that could occur when one researcher takes over from another at the Atomic Collider.

Addressed various bugs in critter animations and trapping mechanics.

Updated base game to use the same strings file as Spaced Out! to streamline translation efforts.

The Radiation System is now available, featuring mineable uranium and various radiation sources.

Fixed Hatches floating in the air after being wrangled while burrowed.

New critters that refine natural uranium ore and can be harvested for uranium.

Added an OpenGL configuration to the game as a workaround for certain startup issues.

New sensor for automation related to radiation.

Revised the falling animation for Hatches.

Resolved issues with sidescreen titles, drag tool labels, and rocket path displays.

Adjusted Hatch collider offset when burrowed making it easier to click on.

Prevent crash when Spaced Out is disabled with Radioactive Contaminates disease was previously selected in the Sandbox Tools.

Fixed the drag area tooltip.

Resolved crashes when deconstructing doors and generating Duplicants with invalid traits.

Enhanced world generation rules and fixed artwork issues for new biomes.

Introduced buildings like Centrifuge, Research Reactor, and Radbolt Generator for handling radiation.

Orbital Cargo Module would not deliver cargo correctly to some worlds.

Reconnecting rockets on load if any of their modules ever disappear.

This fixes a crash in some saves where an incorrect module had been added.

The temperature simulation was not being updated correctly on certain worlds, resulting in energy created from nothing.

Suit Durability is now a customizable game setting.

New effects added to rocket modules to indicate when a rocket is ready to launch (in progress).

Allows rockets to explore unexplored space and reveal tiles on the cluster map.

Added Moo Moonlet and Water Moonlet to Terra and Swamp Clusters.

Introduced Resin material as a precursor to Isoresin.

Introduced Graphite material as a precursor to Fullerene.

New CryoFuel Propulsion technology added to the Research Screen.

New point of interest that will appear on newly generated Marshy Moonlets.

Rocket engines now generate some power while in flight.

Stores excess power generated by rocket engines or ground facilities and provides power to Interior Rocket Outlets.

Added Power Outlet, Liquid Intake/Output, Gas Intake/Output, and Conveyor Receptacle/Loader fittings for rockets.

Charts now show a full 5 cycle history.

Tiles changed from Sandstone to Sedimentary Rock to match swamp findings.

Resolved issues with suits being made of Dirt and incorrect suit interactions.

Interior tiles of rockets are now invincible and non-replaceable.

Game no longer crashes if there's a typo in mod_info.yaml, but logs an error if the mod is in the dev folder.

Updated animations and artwork for rocket port buildings.

Mods no longer crash due to version mismatches or typos in mod_info.yaml.

Oxygen Masks now function more like previous suit implementations with added lockers and checkpoints.

All suits now have a durability system to enhance maintenance requirements.

Multiple crash fixes related to rockets and their interactions.

Adjusted burden, engine power, engine efficiency, and capacity of some rocket modules.

Dupes falling on world edges are now teleported to designated locations.

New sounds added for Teleporter, Sweetle, Mini-Pod, and Rocket Orbital Deploy Cargo Module.

Camera zooming is now smoother at low framerates.

DlcManager is now in the same assembly and has the same interface in both trunk and expansion1.

Mods no longer crash if they have archived_versions but no versions of the mod support the current vanilla/dlc content.

Load/unload animations for conduit ports have been added.

Fixed an issue causing invisible lines in diagnostic/resource charts.

An Oxygen Mask tech item has been introduced.

New animations have been added for when Duplicants and Rovers exit their landers.

A new intro alert message has been added.

A status item has been added to launch pads with rockets that have no spacefarer modules.

Sealed Suits now clear the 'Soiled Suit' status effect when unequipped.

A durability system for equippable suits has been added, requiring ongoing maintenance.

Camera zooming should be smoother at low and inconsistent framerates.

Dupe interact states for the porta_pod have been added.

Place art for the conduit ports has been revised.

Sound effects for Wormwood have been added.

Strings for Korean and Russian have been updated.

Porta-Pod has been renamed to Mini-Pod.

New Oxygen Mask Locker and Marker have been added.

Impact effects on hit state of critters and baby_critter have been removed.

Balance adjustments made to burden, engine power, engine efficiency, and capacity of rocket modules.

Swamp starting area tiles changed from Sandstone to Sedimentary Rock.

Falling dupes on the edges of worlds are now teleported to the telepad or rocket control station.

Fixed an issue with the ever-growing diagnostic indicator dot in the world selector.

Trailblazer and Rover modules now have a wireframe to indicate construction requests.

A missing scoutbot movement animation has been added.

Oxygen Masks now behave more like existing suits, with lockers and checkpoints.

Fixed an issue preventing diagnostic/resource charts from showing a full 5 cycle history.

Fixed sounds for Warp Portal Receiver duplicant interactions.

Rocket tiles are now invincible and non-replaceable.

Art changes have been made to improve the form factor of some small rocket modules.

Worn out jet suits now drop remaining fuel in a bottle.

The Rover pivot symbol has been hidden.

Fixed a crash in some old saves related to Yellowcake, which has been removed from the game.

Art and animation changes have been made for solid/liquid/gas rocket port buildings.

Place art for launchpad and conduit port buildings has been modified.

Sound effects for warp conduit sender/receiver duplicant interactions have been added.

Sound effects for the Rover have been added.

More placeholder strings have been swapped out.

Cap symbols have been added to the launchpad to improve connection visuals with conduit ports.

Fixed an issue causing the small oxidizer tank to have more capacity than intended.

A 'worn_out' state has been added to the suit and mask animations.

Worldgen borders now gradate temperature between adjacent subworlds to prevent temperature leakage.

The old OxygenMaskStation building has been deprecated.

Idle states have been added to the Rover.

Sounds for the portapod have been hooked up.

A new smaller petroleum engine has been introduced.

Fixed a crash that occurred when choosing destinations for rockets without passenger modules.

DLC versions of some rocket engines and modules from the base game have been added.

Flicker effects from the launchpad light in the main menu have been removed, now a slow pulse.

A new Crafting Table has been added for crafting Oxygen Masks.

Worn out suits now have unique names and descriptions.

The Oversee Planetoid button is disabled until the world is discovered.

A pass has been made on the main menu dupe animations.

The artwork for the rocket_oxidizer_tank_small has been updated.

Sound effects for Sweetle and Sweetle Larva have been added.

Sound effects for the Rocket Orbital Deploy Cargo Module have been added.

Mods are now enabled per-DLC, allowing incompatible mods to be disabled in one case but re-enabled in another.

Mod Uploader now prevents uploading a mod without mod_info.yaml and added a link to forums.

Mod Screen now shows which mods are available for the current DLC configuration.

Translation mods default to ALL DLC combinations if no mod_info is found for smoother transitions.

Fixed crash when entering an invalid int for Coordinates on Asteroid select.

Moved the DLC toggle button into the main menu buttons now that the countdown is active again.

Fixed crash caused by running out of TagBits, especially in late-game bases with mods.

Cut down on log spam by making certain messages show only if a mod is in the dev folder.

Fixed typo preventing Sweetle eggs from being printed from care packages.

Fixed an issue that caused a crash when upgrading installed mod data to the newest version.

Removed support for archived_versions.yaml; the archive system now relies on mod_info.yaml.

Fixed crash when Oil Well is deconstructed or melted.

Reactivated the countdown timer on the main menu.

Relink Rocket Platform to stranded rockets when rebuilt; older saves require deconstruction and rebuilding.

Translation mods are now loaded as mods, allowing local loading and installation on non-steam platforms.

Removed debug logging for dupes using oxygen masks in space to prevent log file bloat causing crashes on Linux.

The 'archived_versions' folder now works correctly for mods distributed through steam.

Fixed crash when changing the Bottle Emptier to Sweep Only when a Duplicant has already picked up a bottle.

Duplicant portraits on the Skills Screen are no longer drawn outside the scrolling panel.

Mods can now control their compatibility with different versions of the game, allowing mod loading for Spaced Out.

Fixed crash hovering over Skills button while Trailblazer module descends on world without Duplicants.