Update Information:

Hello everyone,

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!

Soon they’ll be able to build massive rockets, train as astronauts, and journey on missions into space to bring back the resources they find to the colony.

If you're interested, you can help us test this new content on the Rocketry Upgrade testing branch. These features are still being developed so please expect bugs, interface issues, and imperfect balance. We do, however, encourage you to comment on the game as you're currently experiencing it, as we'll be considering your feedback while we further develop the update.

We look forward to reading your thoughts and opinions on the Suggestions Forum.

Thank-you!

What does this testing branch contain so far?

The following content is available in the testing branch:

Spoiler Content: Modular rocket parts which can be assembled in a variety of ways

A new UI screen for interacting with your fleet of rockets and their missions

New buildings to support rocket-related research and development

A new critter and plant which can be brought back from space

Several new Codex entries to unlock over multiple playthroughs

New elements which affect Steel and Natural Gas production

Buildings for gas bottling and emptying

A new "No Sweat" game mode has been added to tailor your experience to your preferred playstyle. The previously available game mode is now called "Survival". 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 an unfinished and in active development version of the upgrade being released on September 6th, it's pretty likely you'll encounter bugs, crashes or balance issues 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 on the Testing branch.

Regarding performance, the Testing branch 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 Testing branch, it cannot be reopened again in the previous Live branch 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 Rocketry Upgrade releases in full on September 6th. 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 join the Testing Branch, all you have to do is play the Open Testing build on Steam.

How do I play the open testing build?

You can switch your branch on Steam using the instructions below:

Spoiler 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 "rocketry_upgrade_testing" 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 taste of what's to come, and thank-you for your help testing out the new Upgrade!