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:
Mostly Positive (582) - 73% of the 582 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (3,394) - 87% of the 3,394 user reviews for this game are positive.
Release Date:
May 18, 2017
Developer:
Publisher:

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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 (24)

September 20

Oil Upgrade Preview Now Available!


Hey everybody!

In our most recent roadmap update post we announced that the time between Oxygen Not Included updates has been reduced down to about six weeks; this is great because it means more updates for you, but it also means less testing time for us. For this reason we've decided to open our testing branch to all of our Early Access players.

Starting today, anyone who owns Oxygen Not Included and is interested in testing new content will be able to access the Upgrade Preview branch on Steam and play the new update two weeks before it goes live. If you choose to participate in open testing next update, thank-you! Your feedback is important to us and helps us shape future content.

What does this preview contain?

The following content is available in the Oil Upgrade preview:
  • Oil Biome
  • New Elements: Oil, Petroleum, Plastic
  • New Creature: Slicksters
  • New Medicinal Plant: Balm Lily
  • New Exosuits: Allow Duplicants to venture safely into new locations
  • New Buildings:
    • Oil Refinery
    • Well Cap
    • Petroleum Generator
    • Polymer Press
    • Plastic Ladders
    • Plastic Tiles
    • Comfy Bed
    • Sink
    • Exosuit Station
    • Exosuit Checkpoint
    • Exosuit Dock
    • Heavi-Watt Tile Bridge
    • High Pressure Gas Vent
    • Animal Trap and drop-point
  • Apothecary reintroduced
    • All-purpose Placebo pills
    • Vitamin Chews to boost immune systems
  • Disease population now limited by the mass of the object it's on
  • New "Room" mechanic: Better manage medical facility assignment, and to give poor Duplicants something to aspire to
What is open testing?

"Open testing" means players get to test drive new content early and give us feedback and suggestions before it goes live. Because this is a preview of the upgrade being released on October 5th, it's pretty likely you'll encounter bugs or crashes 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 the preview.

Please also be aware that once a save is loaded in the Oil preview, it cannot be reopened again in the Outbreak Upgrade or previous builds.


What do I do if I find a crash or a bug?

Post it up on the Bug Tracker and we'll fix it as soon as we can. If you can attach a copy of your save file to your report, that helps us even more as we can pinpoint the source of problem more quickly.

Do I have to play the open testing build?

Nope! If you'd prefer to only play a stable build, you can continue to play in the current Early Access branch until Oil releases in full on October 5th. 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 an open tester?

There's no sign up or registration for becoming an open tester. If you own Oxygen Not Included and want to test the Oil Upgrade preview, all you have to do is play the Open Testing build on Steam.

How do I play the open testing build?

Just switch your branch on Steam using the instructions here. Look for the branch "oil_upgrade_preview". This branch does not require a password.

That's it! We hope you'll enjoy this preview of what's to come, and thank-you for your help testing out the new Upgrade!
119 comments Read more

September 13

[Game Update] HOTFIX - 231825 & 232512 (9/14/2017)

HOTFIX - 231825 (9/13/2017)
  • Germ icons should now properly disappear in the germ overlay if a duplicant no longer has any germs
  • Plants should no longer sometimes unmark themselves for harvesting
    fixed a performance/memory leak
  • Dupes should no longer get stuck at the wash basin/orescrubber/hand sanitizer
  • Fixed a bug where your starting base would sometimes be fully entombed
HOTFIX - 232512 (9/14/2017)
  • fixed slime lung sometimes not showing up in new worlds
50 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

Windows
Mac OS X
    Minimum:
    • 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
    Minimum:
    • 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

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