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[Game Update] - 264752

Release Date: 04/18/18

Update Information:

Hello friends!

It's the start of the third trimester for Ranching Upgrade Mark II. Through extensive breeding, Duplicants have begun observing strange eggs... could this be a new species variation? Or a whole new creature? In addition, they've just finally noticed how cute those freshly-hatched critters are!

Meanwhile, some industrious plumber Duplicant has been busy in the lab to bring us new pipes and sensors, and it's a good thing too, because there's more ports to plug those sensors into.

All this new automation has given the Duplicants a power complex, and they've decided to make the whole world their sandbox. Mind that temperature tool!

If you're interested, you can help us test this new content for the next two weeks before it goes live. As always we appreciate your feedback, so please share your thoughts and opinions on the Suggestions Forum. Thank-you!

What does this preview contain so far?

The following content is available in the Ranching Upgrade Mark I preview:

  • New Critter Morphs -- by breeding creatures new kinds of eggs might be laid
    • Hatch Morphs
    • Shine Bug Morphs
    • Slickster Morphs
    • Puft Morphs
  • Baby critters added to the critter lifecycle
  • New critters:
    • Drecko
    • Drecko Morphs
    • Pacu
    • Pacu Morphs
  • Gaseous Element Sensor
  • In-pipe sensors (liquid and gas)
    • Germ sensor
    • Element sensor
    • Temperature sensor
  • Radiant pipes (liquid and gas)
  • Memory Bit logic component
  • Added logic ports to many more buildings
  • Sandbox Tools
    • Sandbox mode can be enabled on new custom games, or from the pause menu

Check the patch notes for the most up-to-date changes!

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 May 3rd, 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.

Regarding performance, the preview has additional debugging tools enabled to help us track down crashes. This makes the game run more slowly than the live version of the game.

Please also be aware that once a save is loaded in the Ranching Upgrade Mark II preview, it cannot be reopened again in the Mark I 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 the Ranching Upgrade Mark II releases in full on May 3rd. 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 Ranching Upgrade Mark II 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 below:


How to change branches in Oxygen Not Included (Steam)

  • In Steam, click on Library > Games.
  • Scroll down to Oxygen Not Included.
  • Right-click and select Properties.
  • Go to the BETAS tab.
  • In the dropdown, select the name of the branch you want to play. In this case, the branch name is "ranching_upgrade_ii_preview"
    • This branch does not require a password.
  • In that same Properties window, go to the Local Files tab and press "Verify Integrity Of Game Cache."
  • Your game will be updated to the the previous branch.
  • Launch and play Oxygen Not Included

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!


You can join in the Discussion Topic here.
If you run into a bug, please visit the Klei Bug Tracker.

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