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 (481) - 92% of the 481 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (12,460) - 91% of the 12,460 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 (42)

October 18

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.
74 comments Read more

September 6

Rocketry Upgrade - Available Now!

Rocketry Upgrade

Since breaking through the surface of the asteroid our Duplicants have developed a curiosity for the endless cosmos that exists outside their little space rock. That’s right, the Duplicants have begun developing their very own space program!

They’re now able to build massive rockets, train as astronauts, and journey on missions into space to bring back the resources they find.

A big thanks to everyone who participated in the testing branch. You’re helping to make the game better and we always appreciate that effort.

What’s New in the Rocketry Upgrade?

Key Features:
  • Rockets: Several new “Rocket Module” buildings for spacecraft construction.
    • Command Module
    • Petroleum Rocket Engine
    • Liquid Fuel Tank
    • Solid, Liquid, Gas, and Biological cargo containers
  • New buildings to support rocket-related research and development
    • Research Telescope
    • Space Cadet Centrifuge
    • Oxylite Refinery
  • A new UI screen for interacting with your fleet of rockets and their missions
    • Five mission destinations
  • A new critter and plant which can be brought back from space
    • Gassy Moo
    • Gas Grass
  • Several new Codex entries to unlock over multiple playthroughs
  • New elements which affect Steel and Natural Gas production
    • Sour Gas
    • Fossil
    • Sulfur
  • Buildings for gas bottling and emptying
    • Canister Filler
    • Canister Emptier
  • Buildings for storing gases and liquids
    • Liquid Reservoir
    • Gas Reservoir
  • A couple new settings for custom games
    • Hunger rate setting
    • Morale stress setting
    • The "No Sweat" game mode preset has been added to help tailor your experience to your preferred playstyle.
What's Next?

We feel the rocketry upgrade content has opened the door to further space industry related content. We’re looking forward to expanding that stage of the game further. We intend to expand the space industry content and systems in the next update.

We’re also getting close to completing the pre-launch features we planned in last year’s roadmap. We feel it’s approaching time to shift our focus to polish, usability, and content backfill. There is plenty of work to be done in those categories.

You can read more about that in this announcement.
For full patch notes and more info, head over to the official forums: https://forums.kleientertainment.com/forums/topic/95248-rocketry-upgrade-now-available-284571/

[GAME UPDATE] 285480 - 9/13/2018
  • Updated Korean and Chinese translations.

[GAME UPDATE] 285039 - 9/10/2018
  • Improve some of the framerate hitches introduced in the rocketry upgrade.
  • Fixed an issue with translation preview images not appearing when subscribing to languages in the workshop.
  • Fixed a crash that could occur on load if you had an astronaut in space assigned to their own schedule.

[GAME UPDATE] 284634 - 9/6/2018
  • Updated next update timer.
  • Fix for dupes sometimes not delivering to storage lockers when using higher priority conveyor storage.
  • Fixed duplicant centrifuge animation.
  • New biological cargo bay art.
  • Fix for fishes not being able to swim through tiles under construction.
  • Gas bottler sound hookup.
137 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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