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Oxygen Not Included: The Aquatic Planet PackNewsOxygen Not Included: The Prehistoric Planet Pack DLC Release Date Announcement!
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Oxygen Not Included: The Prehistoric Planet Pack DLC Release Date Announcement!

Oxygen Not Included: The Aquatic Planet Pack · published 10 Jun 2025, 20:55 UTC

All newsPlayers around this dateRead on Steam

We've got dino-mite news: The Prehistoric Planet Pack DLC comes out this Thursday, June 12th! It'll be available on Steam, WeGame, and Epic. 

This DLC is a tribute to everyone who grew up wondering what it'd be like to coexist with dinosaurs... and whether or not they'd survive a dramatic encounter with an impactor asteroid! (It wasn't just us, right?)

Uncover an archaic starting world where cold-blooded Rhexes snack on smaller critters, heavy-footed Lumbs shake ripe crops right off their plants, and gigantic Jawbos lurk deep in fetid wetland pools. Lush fruit vines sprawl over walls and ceilings, while carnivorous flowers lure pesky Gnits to their doom... and produce valuable Amber. Elsewhere on the planetoid, strange plant buds deliver forth farm-supporting pollinator critters. 

Duplicants can lug oversized racks of sinewy dino meat over to the new smoker building to make enough mouth-watering brisket to feed all their friends. They'll need their energy, if they're going to build a surface defense station capable of blasting the impactor asteroid out of the sky before it hits! 

Plunge into this primordial planetoid now: Play the free beta version here today! The beta will be playable right up until the DLC goes on sale. Remember to back up your saves first. 

The Prehistoric Planet Pack will be out on Steam, WeGame, and Epic at the same time. It will cost 7.99USD.

For more info on The Prehistoric Planet Pack's content and features, check out our store page here.

F.A.Q.
Which platforms will this DLC be available on? 
Steam, WeGame, and Epic. 

How much does it cost? 
7.99USD

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 Kicks Off June 12th!

Summer is nearly here, and that means the return of Klei Fest! We're gearing up for our annual celebration with big discounts and all kinds of exciting news, updates, and miscellaneous happenings across the Klei universe.

You can look forward to updates for Lab Rat, Beastieball, Oxygen Not Included, and Don't Starve Together. We're also releasing The Prehistoric Planet Pack DLC for Oxygen Not Included, as well as revealing a brand-new game!

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

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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…