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Oxygen Not Included: The Aquatic Planet PackNewsThe Aquatic Planet Pack DLC launches next Thursday, June 11th!
Release

The Aquatic Planet Pack DLC launches next Thursday, June 11th!

Oxygen Not Included: The Aquatic Planet Pack · published 4 Jun 2026, 20:37 UTC

All newsPlayers around this dateRead on Steam

Ahoy, friends! The Aquatic Planet Pack DLC launches next Thursday, June 11th! It'll be available on Steam, WeGame, and Epic.

This is the splashiest DLC we've shipped to date: for the first time ever, Duplicants are learning to swim! They've also learned how to perform CPR, which comes up about as often as you might expect.

Immerse yourself in a flooded starting world where Duplicants hack open giant clams to harvest glossy pearls, swim alongside blindingly bioluminescent Beakon fish, and call Seaquines over to the Aquatic Milking Station to harvest the ingredients for Caviar. Mussel Sprouts and sticky Slogo snails populate the beaches, while Glo Squids prowl the depths of the abyssal trenches.

Pulverize the wood from an otherworldly palm tree to extract the latex needed to produce rubber at the new vulcanizer building. This versatile material enables your Duplicants to craft rubber boots that keep their tootsies dry in this damp environment, craft powerful 4kW insulated conductive wires, and produce the gaskets that many submersible buildings need.

There's also a survivor Duplicant roaming the asteroid, waiting to see if they should join your colony...

Can't wait until next week? Play the free beta version today! The beta will be playable right up until the DLC goes on sale.

For more info on The Aquatic Planet Pack's content and features, check out our store page!

F.A.Q.

Which platforms will this DLC be available on?

Steam first, then WeGame and Epic. We'll share more info as soon as we can!

How much does it cost?

9.99USD

Do I need to own the base game?

Yes, you will need to own Oxygen Not Included in order to play this DLC content.

Do I need to own Spaced Out! DLC in order to play this DLC content?

No.

Klei Fest Starts Thursday, June 11th!

Summer is right around the corner, and that means the return of Klei Fest! We’re getting ready for our annual celebration with big discounts, releases, game updates, and miscellaneous happenings across the Klei universe.

This year, you can look forward to updates for Rotwood, Oxygen Not Included, and Don't Starve Together, as well as the conclusion of the current Don't Starve Together interactive lore story arc, and some other surprises!

If you haven’t already, be sure to follow our Steam developer page so you don’t miss a thing!

More from Oxygen Not Included: The Aquatic Planet Pack

Other announcements

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Game update28 Jul 2026[Game Update] - 744825Fixes · All versions · Fixed incapacitated Duplicants teleporting to the bottom left of the world after being rescued and resuscitated. · Fixed Masterworks skill string not mentioning Masterpiece artwork quality. · Deconstructing buildings that have Gaskets now spawns a Gasket of the correct element, and not Genetic Ooze. · Fixed liquid rendering bug on older graphics cards. · Fixed navgrid mem…Game update7 Jul 2026[Game Update] - 740622Changes and Improvements · The Aquatic Planet Pack · Minnow's Freediver trait now provides +4 to all attributes while swimming. · In new saves, Minnow will now join your colony with +4 in all attributes and the Ancient Knowledge trait providing 3 Skill points. · Seaquines will now poop on a more regular basis. · Beakons and Pokeshells will no longer poop on Wide Hydroponic Farm tiles with more…Game update17 Jun 2026[Game Update] - 737790Changes and Improvements · All versions · Revised Tepidizer sound for when the building is in Turbo Mode. · Aquatic critters will now reference pool size instead of room size in the Space Required section of their database entries, when describing Confined and Crowded conditions. The Field Guide has been updated to mention both pools and rooms. · The Prehistoric Planet Pack · Jawbos can now eat…