Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
Recent Reviews:
Very Positive (1,848) - 90% of the 1,848 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (21,838) - 93% of the 21,838 user reviews for this game are positive.
Release Date:
Jul 30, 2019

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Recent updates View all (50)

July 30

Oxygen Not Included Has Launched!! - [Updated w/ Hotfix 361684 8/22/19]

Originally posted by Ipsquiggle on the official forums.

Today is the day!

The fridges are full and the toilets are empty, the pipes are plumbed and the power’s been generated… plus there's hardly any pee on the floor at all! That can only mean one thing; the time has finally come to open the bunker doors and invite everyone in to see the glorious machine we’ve created!

Oxygen Not Included has officially left Early Access, and we're ready to let everyone come see what we've been working on these last 5 years!

So what have we been working on all this time, anyway?

Oxygen Not Included is a space colony simulation game where you oversee your Duplicants (aka, lovable 3D printed clones) as they attempt to overcome the harsh conditions of deep space. Master advanced science and technology, capture and tame strange new lifeforms, and plan your base with expert efficiency so that you and your colony may survive… and even, possibly, thrive.

The game has come a long way since it went into Alpha in February 2017. We started with a game that had little more than a few Duplicants and some pipes full of cold water. Since then we’ve added oil biomes and automation, Duplicant skill progression and tubes to zip around in, critter ranching and breeding, and more features than could possibly be named. Now Duplicants can even break through the surface of their rocky home and escape away into space… with your guidance, of course.

The adventure’s not over yet, either. We'll continue fixing bugs and balance after launch, so please keep sending your feedback and reports! We also have more we want to do with the game in the future, so keep an eye out for announcements.

It's been an intense but delightful ride and we couldn't have gotten here without the support of all of you from this awesome community. The whole team would like to thank you for your comments and support, your bug reports and your discussions, your insane machines and your beautiful stories.

Please, enjoy Oxygen Not Included! This Mushbar's on me.

Click here for full launch changelist.
Hotfix - 357226
  • Fix muted video playback
  • Fix crash when viewing an old colony's summary graphs
  • Fixed the height of the park sign
  • Updated Korean translations
  • Updated Chinese translations
  • Added new Colony Initiatives/Achievements
  • Fix problem where newly earned initiatives would not update on the summary screen
  • Summary screen no longer crashes if two colonies have the same name
  • Updated game credits
  • Fix numerous strings typos
  • Make more strings translatable
  • Fix glitchy Duplicant portraits on the colony summary screen
  • World traits can now be "exclusive", so Metal Rich/Metal Poor and Geoactive/Geodormant can't roll on the same world.
  • Boulder world traits will less frequently appear on the same world.
  • Corrected the in-conduit colours of ethanol, ethanol gas, and sour gas
  • Hatch diets now include aluminum ore and electrum
  • Added two new meteor showers, one with Copper meteors, and one with Gold meteors.
  • Squeaky Pufts now appear in Rust biomes
  • Puft temperature ranges widened and made unique per species.
  • The Serum Vial now takes Steel instead of Wolframite to craft
  • Automation sensor statuses now use red/green terminology
  • Automation ports show their descriptions when hovered while building an automation wire
  • Fix for several cases where fabricator buildings would stop being worked even when there were open orders
  • Tweaked skill names and descriptions
  • Remove references to "Toxic" elements
  • Solid Boosters now actually consume their fuel
  • Additional colony summary charts, now with colors!
  • Steam Achievements are no longer earned after Sandbox mode is enabled.
HOTFIX - 358267
  • Renamed the "Tune Up for What?" initiative to "Finely Tuned Machine"
  • Updated achievement icons
  • Updated Chinese translations
  • Colony timelapses now save out correctly -- show us what you've got!
  • Many building status items which were showing "{Item}" and similar now actually have the item name filled in
  • Fix crash when steam condenses in an airflow tile
  • Fix an issue where certain mods requiring updating would not get updated
  • Fix an issue where the game would forever ask to restart after a mod had been updated. NOTE: if you had been stuck in that loop, some of your mods may be disabled. You can re-enable them.
  • Volume tuning on the world generation and Duplicant selection screens.
  • New ascending sounds when initiatives are earned
  • Wood Burner now respects battery fill percent configured on the side screen.
  • Desalinator has a status item when it's full of salt and needs emptying
  • "Oxygen Not Occluded" and "Down the Hatch" initiatives now track the correct values (they were looking for 1000x too much oxygen/metal!)
  • Fixed a particular framerate issue while rockets were launching. More investigation is underway.
HOTFIX - 358820
  • Fix Duplicants with Trypophobia still digging construction chores (and similar issues)
  • Game will load and reset preferences if preferences get corrupted. If you have been stuck at the Klei logo, you should now be able to run the game but your preferences will have been reset!
  • Reduced the thermal conductivity of Ethanol Gas to 0.167
  • Removed sweat from Duplicants' faces when they change hats
  • Power generation initiatives are tracked correctly now
  • Add a new initiative, "Immovable Object"
  • Fixed a number of errors related to local/dev mods not getting removed correctly. Local and Dev mods will have to be re-enabled.
  • Local mods work on case-sensitive platforms.
  • A bunch of improvements to timelapses:
    • Can be disabled by moving the resolution slider to the left.
    • Aspect ratio matches the default world aspect, for better screenshots as the colony grows
    • Resolved several timelapse rendering issues
    • Can see timelapses for colonies so long as there's at least one image
    • Fixed a bug where it wouldn't take a screenshot on the cycle a game was loaded
  • Fixed an issue where the timelapser could cause the game to "freeze" while still playing sounds
  • Automation tracking for achievements ignores POI buildings
  • Voles no longer get stuck if they burrow into a tile as it is dug up
  • Fixed meter position on the Wood Burner
  • Tree branches have a chance to create a seed on both uproot and harvest, so pips can harvest seeds from trees more frequently.
  • Plants no longer incorrectly list seed chances if they have no seed chances
  • Hooked up cleaning animation for Desalinator
HOTFIX - 359645
  • Wheezewort and Oxyfern no longer show 'effects' in the planting screen
  • Fix the aspect of the thumbnail in the colony summaries
  • Correctly check all logic networks for logic achievements
  • Tiles can now replace ladders, plastic ladders, and firepoles. (But not the other way around.)
  • Timelapse sizes are now based on constructed buildings so are more stable between cycles
  • Add a Colony Initiative, Easy Livin'
  • Updated Russian and Chinese translations
  • Nosh Sprout previews in planter boxes are the correct height
  • Skill point notifications are less permanent (similar to attribute increases)
  • Added notification when Database Entry is unlocked
  • Improved tooltips on many of the sidescreens with sliders on them (power threshold, critter sensor, etc)
  • Critter sensor tooltip and description now agree on when the sensor activates
  • Video sound is affected by Master volume control
  • Game will no longer freeze during timelapsing if there is no Printing Pod present
HOTFIX - 361684
  • Research screen nav improvements: smooth zoom, wider max zoom, smooth keyboard panning, respects mousewheel rebinds
  • Various strings typo fixes
  • Performance improvement in achievement tracking
  • Cropped colony screenshots on main list
  • Incubators can select their preferred egg even if zero are available
  • Game saves preview screenshots when saving the game, and displays them in the load menu
  • Molar mass of solid and gaseous ethanol fixed
  • Updated Chinese translations
  • Updated Russian translations
  • Clicking notifications for new skills, no research, or no analysis opens the corresponding screen
  • Fixed issue with "Missing Research Station" not showing in the correct conditions
  • Only show "new skill point" notification if Duplicant went from 0 to 1 available points and remove it if the points get spent
  • Skill points and hats refresh correctly when choosing skills
  • Improve loading of colony summaries and timelapses so that the screen opens much more responsively
  • Colony summary screen no longer leaks memory
  • Slowed down the playback speed of the timelapse, and added basic playback controls
  • Selecting an achievement in the colony summary screen shows detailed progress towards that achievement
  • Added icon on achievements list to indicate if the base is eligible for Steam achievements (i.e. has debug been used)
  • Critter Sensor allows choosing to activate when Above or Below the chosen value
  • Fix issue where where certain rotations of buildings wouldn't detect if their foundation had been removed
  • Added salt shaking sounds to the mess table
  • Fix extra click sounds on the printing pod buttons
  • Pacu are generally less constantly loud, particularly when in large groups.
  • Fix Rust Generator electricity sparking sounds.
  • Tutorial videos are slightly louder.
  • Fix scrolling sounds on the asteroid select screen
  • Correct click sounds play on various checkboxes
  • Play correct sound effects when shuffling Dupes
  • Wrangled critters only vocalize sometimes instead of constantly
  • Made rust deoxydizer bubblier (both art and audio)
  • Suit Checkpoint placer now more strongly indicates its usage and direction
  • Fix occasional crash when taking a timelapse screenshot after load
  • Fix issue where overlays would partially show in timelapse screenshots
  • Fix "ghost ladders" that would exist if a ladder got replaced with a tile
262 comments Read more

July 23

Oxygen Not Included Launching July 30th!

Originally posted on the official forums.

Hello friends!

Next week, July 30, Oxygen Not Included will be launching out of Early Access! Here is a brief list of the things we've added for launch, a full list will be available on launch day.
  • New asteroids to explore, with their own rolled traits
  • Three new biomes complete with plants and critters
  • New buildings to process and upgrade the materials you'll find there
  • Colony goals for the duplicants to strive for
  • Balance and polish passes on food, temperature, Duplicant selection, and more
For us, launch means that the main features of the game are complete and we feel the general public can enjoy the game. Rest assured, we will continue to be working on the game post-launch. After July 30, we will continue with bug fixes and balance changes; we also have more content we want to explore with the game in the future, and we will let people know more about our plans when the time comes.

Thank you everyone for staying with us the past two years, and I look forward to continuing the journey with you!
368 comments Read more

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About This Game

In the space-colony simulation game Oxygen Not Included you’ll find that scarcities of oxygen, warmth and sustenance are constant threats to your colony's survival. Guide colonists through the perils of subterranean asteroid living and watch as their population grows until they're not simply surviving, but thriving...

Just make sure you don't forget to breathe.

Build Extensive Bases and Discover What it Takes to Survive:

Everything in your space colony is under your control, from excavation and resource allocation right down to plumbing and power systems. Resources will begin depleting with your first breath, however, so be sure to dig fast if you want to live.

It’s Mind Over Matter with Stress Simulations:

Keep the psychological impact of survival at bay with fun leisure activities, great accommodations and even better food for your colony. Duplicants each have different and potentially destructive ways of reacting to stress, so be sure to always keep them happy. Whatever the cost.

Avoid Boiling with Thermodynamics:

Temperature control is a constant concern in space; too cold and you'll freeze, too hot and you'll fry. Keep tabs on ambient environmental temperatures and your colony's heat production to maintain a nice, cozy atmosphere for your colonists.

Enhance Efficiency through Complex Gas and Liquid Simulations:

Create interlocking pipe systems to swiftly deliver fuel and liquid to critical areas of your base. Plan well and be rewarded as your colony transforms into an imperishable, well-oiled machine.

Take Charge with Power Grid Simulations

Choose from a multitude of power sources including coal, hydrogen, natural gas or just plain old elbow grease. Manage power runoff, circuit overloads and meltdowns to keep your colony running smoothly.

Always Keep Yourself Breathing:

Enter the Oxygen Overlay and watch air moving through your base in real time. Monitor carbon dioxide accumulation and oversee oxygen generation processes to mold your colony into a veritable deep-space oasis.

Waste Nothing through Extreme Recycling

Make use of every last resource for a base that truly exemplifies efficiency. Recycle waste into precious fuel, process unbreathable gas into air or harness the natural bodily processes of wild creatures for food. If you’re clever, you might even be able to run a base off colonist farts.

Explore Diverse, Procedurally Generated New Worlds:

Summon new worlds with a push of a button. Experience tons of untamed space rocks, then suffocate to death in them!

System Requirements

Mac OS X
SteamOS + Linux
    • Requires a 64-bit processor and operating system
    • OS: Windows 7 (64 bit)
    • Processor: Dual Core 2 GHz
    • Memory: 4 GB RAM
    • Graphics: Intel HD 4600 (AMD or NVIDIA equivalent)
    • DirectX: Version 11
    • Storage: 2 GB available space
    • Requires a 64-bit processor and operating system
    • Requires a 64-bit processor and operating system
    • OS: OSX 10.9
    • Processor: Dual Core 2 GHz
    • Memory: 4 GB RAM
    • Graphics: Intel HD 4600 (AMD or NVIDIA equivalent)
    • Storage: 2 GB available space
    • Requires a 64-bit processor and operating system
    • Requires a 64-bit processor and operating system
    • OS: Ubuntu 14.04
    • Processor: Dual Core 2 GHz
    • Memory: 4 GB RAM
    • Graphics: Intel HD 4600 (AMD or NVIDIA equivalent)
    • Storage: 2 GB available space
    • Requires a 64-bit processor and operating system

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