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 (512) - 93% of the 512 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (15,752) - 93% of the 15,752 user reviews for this game are positive.
Release Date:
May 18, 2017

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Since 2012, Klei has used Early Access as a tool to gather feedback and build our games in collaboration with our community, producing games like Don’t Starve, Don’t Starve Together and Invisible Inc.. We’ve found this process works for us, and we hope you find it works for you, too.

Our current project, Oxygen Not Included, has already majorly benefited from the feedback provided by players during its Alpha period. By releasing this game in Early Access, we hope to continue to grow our community and get more people involved in its development.”

Approximately how long will this game be in Early Access?

“We still have a lot more in store for Oxygen Not Included, and plan to continue growing and updating the game well into 2018.”

How is the full version planned to differ from the Early Access version?

“The plan for the full version of Oxygen Not Included is to create even more content to allow players to manipulate, automate, and harness the world their Duplicants live in. Duplicants will also become more robust as their needs and abilities evolve over time. To complement this, there will be new biomes to discover, new creatures to interact with, world events to deal with, and more.

We will also be exploring the lore of the game, slowly uncovering the history of the world and why the duplicants are trapped on a giant rock hurtling through space.

Mod support is also very important to us, so we expect to have full workshop support by launch or shortly thereafter.”

What is the current state of the Early Access version?

“Oxygen Not Included currently contains all the core systems that will be evolved and iterated upon during Early Access such as thermodynamics, density, plumbing, stress and hunger. The game has already been played by over 150,000 players in its current state, many of whom report hundreds of hours played. We’re amazed by the breadth and depth of creations that players have made and we’re looking forward to building upon that.”

Will the game be priced differently during and after Early Access?

“The base price may be increased upon release from Early Access.”

How are you planning on involving the Community in your development process?

“We're continually talking to our community about our design process and keeping them informed of our decisions and improvements with regular updates. Please join the discussion on our forums at http://forums.kleientertainment.com/forum/118-oxygen-not-included/”
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Recent updates View all (43)

December 13, 2018

Quality of Life Upgrade Mk 1 Available Now!

Hello intrepid colony managers!

Today we're happy to bring you the first edition of our new "Quality of Life" Upgrade series! This series will differ slightly from Upgrades we've released in the past, as we shift our focus toward a new stage of development dedicated to evaluating all game content to date. This means looking at improving performance, filling in remaining holes in content, and rebalancing existing systems (hooray!).

The intent of QoL Mk 1 is to begin working through the important issues that have been brought up by users on our forums (thank-you for your feedback and reports!), as well as eliminating major game-impacting bugs, and improving the quality of Oxygen Not Included's early game for new users. As a result, QoL Mk 1 introduces new recipe queuing UI options, more building copy settings, and a bunch of new content expanding the decor system such as varieties on existing paintings, sculptures and flower pots (plus a whole assortment of crash fixes and performance tweaks).

Throughout the rest of the QoL Upgrades, we will be continuing to monitor the forums and your reports for more feedback on how we can improve the game. We've made some serious progress on bugs and polish this update, but there's still more to come! We've still got even more systems to balance and optimization to perform.

In addition, the team will be taking a two week break over the holidays and getting back to it in the New Year. The next update will be on schedule in 8 weeks, coming out February 7th.

Thank you to everyone who participating in our open testing branch, we hope you enjoy the decor!

What's New and Improved?
The majority of the work this Upgrade has been on a wide range of bugs and tuning, so rather than a list of high-level features like we usually do, here's a massive categorized list of the changes and improvements we've made.

New Things
  • New Pedestal Building: Use it to increase the decor value of various objects while displaying them for your Duplicants
  • New Artifact Objects: Bring them back from outer space for decorative display in your colony
  • New Decor Items: Corner Decorations, Carpeted Tile, Trim Tile, new Painting and Statue variations, new Pot types for plants
  • New Master Artist role: Allows the creation of the best forms of art (and the Astronaut role finally has its own hat too!)
  • Increased Automation: Critter Sensor outputs a signal based on the number of critters and eggs in a room
  • New Sight-Seeing Module: Send Duplicants to space for a huge morale and productivity bonus

And A LOT more
For a full list of patch notes, please visit the official forums.

HOTFIX - 299790
  • Fix some formatting in the official Chinese and Russian translations
  • Add some debug logging to help track down crashes
  • Fix crash when Duplicants are trying to unequip items
  • Fix crash if a building in fog-of-war gets damaged
  • Fix crash when Auto Sweepers are looking for tasks
  • Dupe navigation will be correctly affected by their custom access settings on doors.
HOTFIX - 302293
  • Fix a crash when a sink runs out of water while a dupe is washing their hands
  • Fabricator screen now displays a helpful message when no recipes have been discovered
  • Fabricator screen now displays a recipe when any ingredient has been
114 comments Read more

October 18, 2018

Space Industry Upgrade Available Now! w/ [HOTFIX 291640]

After their first exciting foray into space the Duplicants have been eager to learn more about the universe in which they live. Their dedicated space research has brought on a wave of technological innovation, and using the rocketry advancements now at their disposal the Duplicants can fly further into the unknown than ever before. They might even bring some strange new things back for their trouble!

Introducing: Oxygen Not Included - Space Industry Upgrade!

What's New?
An expanded starmap means Duplicants can venture even further out into space, reaching far off locations until now unseen where several powerful new materials are waiting to be collected.

Key Features
New Rocketry options for more ways to get into space
  • Steam Engine and Liquid Hydrogen Engine for increased rocket power
  • Solid Fuel Thrusters to improve rocket thrust
  • Research Modules to gather research data from space
Expanded Space Destinations with rare materials
  • Larger space map
  • New destination types
  • Space research, which reveals artifacts and materials
New surface-dwelling creature
  • Shove Vole can now be found on the surface, munching Regolith and waiting for your love!
Advanced material fabrication pushes the limits of physics
  • New Molecular Forge converts rare materials into industrial supermaterials
  • New Thermium, used as an industrial super conductor material
  • New industrial-grade Insulation
  • New Fullerene-based Super Coolant
  • Gelatinous, kinetic energy-dampening Visco-Gel
Jet Suits enable extreme Duplicant mobility
  • Duplicants take to the air in new Jet Suits!
  • Jet Suit Checkpoints and Lockers added for Jet Suit management
Revised late-game research
  • Telescopes can now analyze Starmap destinations
  • Research Modules produce Data Banks during rocket missions
  • New Virtual Planetarium turns Data Banks into research
Rocketry automation allows for larger, more dynamic spaceports
  • Command Modules are now automatable
  • Space Scanners can signal incoming rockets as well as detect meteor showers
And more!
  • Neural Vacillator recharges
  • Robo-Miner buildings for automatic digging
What's Next?
As mentioned in the previous update, we will be shifting gears for the next while. Please read the Updated Roadmap for full details and discussion!

Thank you to everyone who participating in our open testing branch, we hope you enjoy your improved journeys to space!

As always you can head over to the official forums for full update notes and info. https://forums.kleientertainment.com/forums/forum/137-oxygen-not-included-latest-content-update/

HOTFIX 290261
  • Neural Vacillator can now be assigned after it has been recharged
  • Various Spacemap strings are now localizable
  • Update official Russian translation
  • All important properties of Dupe returning from space should be restored when they leave the rocket
  • Voles can no longer be Entombed
  • Updated text for Spacemap
  • Fix crash when Voles die
  • Fix broken Database links on seeds
  • Liquid Reservoir meter properly shows as empty when it is empty
  • Fix crash that could occur when unlocking Database entries
  • Updated Gas Bottler sound effects
  • New sounds for Auto Miner
  • Fix crash when Dupes tried to have a conversation about being an astronaut
HOTFIX 290443
  • Update Space Research center art
  • Shov Voles can no longer move through doors, mesh and airflow tiles made of refined metals
  • Destroying a rotated door no longer allows digging tiles that shouldn't be dug
  • Critters and Plants can once again be returned from Space Missions
  • Fix crash when starting the game with a small render target size
  • Add Liquid reservoir sounds
  • Updated Shov Vole animation and art
  • Pathfinding runs a little bit faster
HOTFIX 291185
  • Fix for dupes continually digging tiny amounts of snow and other materials.
  • Fix dupe animation frozen when eating medicine or changing the lock state of a door.
  • Fix loss of mass when multiple stackable items stack together on the same frame.
  • New research center animations.
  • Rocket Modules can no longer be deconstructed while the rocket is away.
  • Command module storage is sealed and insulated so the atmosuit can't melt while in flight.
  • Make rocket fuel tanks insulated so steam etc. doesn't phase change during fueling.
  • Fix starmap/telescope so new analysis targets can be selected after one is completed.
  • Fix for flush toilet constantly becoming disabled if you run the output pipe directly across the output instead of connecting to a T junction.
  • Shov Vole can no longer dig through nearly impenetrable materials.
  • Updated baby Shov Vole animations.
  • Updated Gassy Grass animations.
  • Improved tooltip for when duplicants die from low health.
  • Fixing drowning tooltip.
HOTFIX 291185
  • Fix crash when building Rocket engines
HOTFIX - 291640
  • Fix crash while saving Unlocks if the json file is locked.
  • Fix writing Unlocks.json when nothing has changed.
  • Fix crashes when destroying Rocket Modules.
  • Fix crash when destroying a Command Module containing a dupe.
82 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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